| 
Acetaldehyde | 
B | 
A | 
C | 
A | 
A | 
A | 
A | 
 | 
A | 
D | 
A | 
C | 
B | 
C | 
C | 
A | 
C | 
D | 
A | 
 | 
Acetamide | 
A | 
 | 
C | 
 | 
 | 
B | 
A | 
 | 
 | 
 | 
B | 
A | 
 | 
 | 
 | 
A | 
B | 
D | 
 | 
 | 
Acetate Solvent | 
A | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
A | 
A | 
B | 
D | 
 | 
 | 
Acetic Acid 5% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
B | 
 | 
 | 
B | 
 | 
 | 
 | 
Acetic Acid 10% | 
B | 
D | 
C | 
 | 
 | 
B | 
A | 
 | 
A | 
B | 
C | 
C | 
A | 
B | 
B | 
A | 
B | 
B | 
A | 
 | 
Acetic Acid 20% | 
B | 
D | 
 | 
 | 
 | 
B | 
A | 
 | 
A | 
C | 
C | 
D | 
A | 
 | 
A | 
A | 
A | 
D | 
A | 
 | 
Acetic Acid 80% | 
B | 
C | 
 | 
A | 
 | 
D | 
B | 
 | 
A | 
D | 
D | 
D | 
A | 
 | 
A | 
A | 
A | 
D | 
A | 
 | 
Acetic Acid 100% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
D | 
 | 
 | 
B | 
D | 
 | 
 | 
Acetic Acid, Glacial | 
B | 
A | 
A | 
A | 
 | 
C | 
A | 
A | 
A | 
D | 
D | 
C | 
A | 
 | 
A | 
A | 
A | 
D | 
A | 
 | 
Acetic Anhydride | 
B | 
D | 
D | 
A | 
 | 
B | 
A | 
 | 
A | 
D | 
D | 
C | 
 | 
 | 
A | 
A | 
B | 
D | 
A | 
 | 
Aceto-acetic ester | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Acetone | 
A | 
A | 
A | 
A | 
A | 
A | 
A | 
B | 
A | 
D | 
A | 
A | 
A | 
C | 
B | 
A | 
A | 
D | 
A | 
 | 
Acetonitrile | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
Acetophenone | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
 | 
  | 
C | 
B | 
  | 
  | 
 | 
Acetyl Bromide | 
  | 
  | 
 | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
D | 
 | 
 | 
 | 
  | 
  | 
D | 
A | 
 | 
Acetyl Chloride | 
  | 
  | 
  | 
 | 
 | 
C | 
A | 
 | 
  | 
  | 
  | 
  | 
 | 
 | 
  | 
 | 
  | 
  | 
A | 
 | 
Acetyl Chloride (dry) | 
D | 
D | 
 | 
A | 
 | 
A | 
A | 
 | 
  | 
D | 
D | 
B | 
 | 
 | 
 | 
A | 
D | 
C | 
A | 
 | 
Acetyl Nitrile | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Acetyl Salicylic acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Acetylene | 
A | 
B | 
A | 
 | 
A | 
A | 
A | 
A | 
  | 
  | 
A | 
A | 
A | 
 | 
 | 
A | 
A | 
C | 
A | 
 | 
Acid Chloride 104 °F | 
  | 
  | 
  | 
 | 
 | 
  | 
D | 
 | 
A | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Acid Fluoborate Bath R.T. | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
D | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Acid Fluoborate Bath R.T. | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Acid fumes | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Acid Sulfate Bath 150 F | 
  | 
 | 
 | 
 | 
 | 
  | 
C | 
 | 
A | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
D | 
A | 
 | 
Acrylic Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
Acrylic Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
R | 
 | 
 | 
Acrylonitrile | 
B | 
B | 
 | 
B | 
A | 
A | 
A | 
 | 
  | 
D | 
B | 
A | 
 | 
 | 
 | 
  | 
A | 
B | 
A | 
 | 
Adipic Acid | 
A | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
  | 
  | 
 | 
 | 
 | 
  | 
B | 
A | 
A | 
 | 
Adipic Acid; sat. in water | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
R | 
 | 
 | 
Alcohol, Allyl | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
 | 
 | 
C | 
 | 
 | 
Alcohol, Amyl | 
C | 
B | 
C | 
A | 
A | 
A | 
A | 
 | 
A | 
B | 
A | 
A | 
 | 
B | 
B | 
A | 
B | 
C | 
A | 
 | 
Alcohol, Benzyl | 
B | 
C | 
A | 
A | 
 | 
A | 
B | 
 | 
A | 
D | 
A | 
B | 
 | 
 | 
D | 
A | 
A | 
D | 
A | 
 | 
Alcohol, Butyl | 
B | 
C | 
C | 
A | 
 | 
A | 
A | 
 | 
B | 
A | 
A | 
D | 
 | 
 | 
A | 
A | 
A | 
C | 
A | 
 | 
Alcohol, Butyl Phthalate | 
B | 
A | 
 | 
B | 
 | 
B | 
B | 
 | 
B | 
  | 
B | 
A | 
 | 
 | 
 | 
A | 
B | 
  | 
A | 
 | 
Alcohol, Cetyl | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
A | 
 | 
 | 
B | 
  | 
  | 
 | 
Alcohol, Diacetone | 
A | 
A | 
A | 
A | 
 | 
A | 
B | 
 | 
A | 
 | 
A | 
A | 
 | 
D | 
B | 
 | 
B | 
B | 
A | 
 | 
Alcohol, Ethyl [Ethanol] | 
B | 
C | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
B | 
B | 
A | 
 | 
A | 
B | 
A | 
A | 
C | 
A | 
 | 
Alcohol, Furfuryl | 
A | 
A | 
A | 
B | 
 | 
A | 
B | 
 | 
A | 
D | 
B | 
B | 
 | 
B | 
D | 
A | 
C | 
D | 
A | 
 | 
Alcohol, Heptyl  | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Alcohol, Hexyl | 
A | 
C | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
  | 
A | 
A | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Alcohol, Isobutyl | 
B | 
C | 
A | 
A | 
 | 
A | 
A | 
 | 
B | 
B | 
A | 
A | 
 | 
 | 
A | 
 | 
A | 
A | 
A | 
 | 
Alcohol, Isopropyl | 
B | 
C | 
A | 
A | 
 | 
B | 
A | 
 | 
B | 
  | 
A | 
D | 
 | 
D | 
A | 
A | 
A | 
A | 
A | 
 | 
Alcohol, Lauryl | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
B | 
 | 
 | 
B | 
 | 
 | 
 | 
Alcohol, Methyl [Methanol] | 
B | 
B | 
A | 
A | 
 | 
A | 
A | 
 | 
B | 
D | 
C | 
B | 
A | 
 | 
A | 
A | 
A | 
B | 
A | 
 | 
Alcohol, Nonyl | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
B | 
  | 
 | 
B | 
  | 
  | 
 | 
Alcohol, Octyl | 
A | 
C | 
A | 
C | 
 | 
A | 
A | 
 | 
A | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
  | 
  | 
 | 
Alcohol, Propyl | 
A | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
B | 
A | 
D | 
 | 
 | 
A | 
A | 
A | 
A | 
A | 
 | 
Aliphatic esters | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Alkaline Cyanide Bath R.T. | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
A | 
  | 
  | 
A | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Alkyl chlorides | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Allyl Chloride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Alohois Amyl | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Alum Potassium Sulfate (Alum), 10% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
A | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Alum Potassium Sulfate (Alum), 100% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Aluminum Acetate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Aluminum Chloride | 
D | 
D | 
A | 
A | 
 | 
B | 
B | 
 | 
B | 
A | 
  | 
D | 
A | 
B | 
 | 
A | 
A | 
A | 
A | 
 | 
Aluminum Chloride 20% | 
D | 
D | 
A | 
A | 
 | 
D | 
C | 
 | 
B | 
  | 
C | 
C | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Aluminum Fluoride | 
B | 
  | 
A | 
 | 
 | 
D | 
D | 
 | 
D | 
A | 
C | 
D | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Aluminum Hydroxide | 
B | 
B | 
A | 
B | 
 | 
A | 
C | 
 | 
B | 
B | 
B | 
A | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Aluminum Nitrate | 
D | 
A | 
 | 
B | 
 | 
A | 
C | 
 | 
A | 
  | 
B | 
A | 
 | 
 | 
 | 
  | 
A | 
B | 
A | 
 | 
Aluminum Oxylchloride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Aluminum Potassium Sulfate 10% | 
C | 
A | 
A | 
C | 
 | 
A | 
A | 
 | 
A | 
  | 
C | 
D | 
 | 
 | 
A | 
  | 
A | 
A | 
A | 
 | 
Aluminum Potassium Sulfate 100% | 
C | 
 | 
A | 
 | 
 | 
D | 
B | 
 | 
A | 
  | 
C | 
D | 
 | 
 | 
B | 
  | 
A | 
A | 
A | 
 | 
Aluminum Sulfate | 
B | 
B | 
 | 
C | 
 | 
B | 
B | 
 | 
A | 
A | 
C | 
A | 
A | 
A | 
B | 
A | 
A | 
A | 
A | 
 | 
Ammonium Alum | 
A | 
 | 
 | 
 | 
 | 
  | 
A | 
 | 
A | 
  | 
  | 
A | 
 | 
 | 
 | 
  | 
A | 
A | 
 | 
 | 
Amines | 
B | 
B | 
A | 
B | 
 | 
A | 
B | 
 | 
B | 
  | 
D | 
A | 
 | 
 | 
 | 
B | 
B | 
A | 
A | 
 | 
Ammonia (gas;dry) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Ammonia 10% | 
A | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
C | 
  | 
D | 
A | 
A | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Ammonia Nitrate | 
C | 
  | 
A | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
C | 
D | 
 | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Ammonia Solution | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
Ammonia, Anhydrous | 
A | 
D | 
B | 
B | 
 | 
B | 
A | 
 | 
C | 
A | 
D | 
A | 
A | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Ammonia, aqueous | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Ammonia, Chloride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Ammonia, Hydroxide | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Ammonia, Liquid | 
D | 
A | 
A | 
B | 
 | 
B | 
A | 
 | 
C | 
  | 
D | 
B | 
B | 
 | 
D | 
A | 
A | 
A | 
A | 
 | 
Ammonia, Persulfate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Ammonia, Sulfate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Ammonium Acetate | 
A | 
D | 
 | 
 | 
 | 
B | 
A | 
 | 
  | 
  | 
  | 
A | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Ammonium Bifluoride | 
B | 
A | 
 | 
B | 
 | 
D | 
B | 
 | 
  | 
A | 
D | 
  | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Ammonium Bisulfate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Ammonium Carbonate | 
B | 
A | 
B | 
B | 
 | 
B | 
B | 
 | 
A | 
A | 
D | 
A | 
 | 
 | 
 | 
A | 
A | 
A | 
A | 
 | 
Ammonium Caseinate | 
  | 
  | 
 | 
 | 
 | 
  | 
A | 
 | 
  | 
  | 
D | 
  | 
 | 
 | 
 | 
  | 
  | 
  | 
 | 
 | 
Ammonium Chloride | 
B | 
D | 
D | 
D | 
 | 
C | 
C | 
 | 
B | 
A | 
B | 
B | 
A | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Ammonium Fluoride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Ammonium Hydroxide | 
B | 
D | 
B | 
B | 
 | 
A | 
A | 
 | 
A | 
B | 
C | 
A | 
A | 
 | 
A | 
A | 
A | 
A | 
A | 
 | 
Ammonium Metaphosphate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Ammonium Nitrate | 
B | 
C | 
C | 
B | 
 | 
A | 
A | 
 | 
A | 
  | 
B | 
C | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Ammonium Oxalate | 
  | 
  | 
A | 
A | 
 | 
A | 
A | 
 | 
  | 
  | 
B | 
  | 
 | 
 | 
 | 
  | 
A | 
A | 
 | 
 | 
Ammonium Persulfate | 
C | 
C | 
A | 
B | 
 | 
A | 
B | 
 | 
A | 
A | 
D | 
D | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Ammonium Phosphate, Dibasic | 
B | 
A | 
D | 
B | 
 | 
B | 
C | 
 | 
A | 
A | 
B | 
B | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Ammonium Phosphate, Monobasic | 
B | 
  | 
A | 
 | 
 | 
B | 
C | 
 | 
A | 
  | 
B | 
B | 
 | 
 | 
B | 
  | 
A | 
A | 
A | 
 | 
Ammonium Phosphate, Tribasic | 
B | 
  | 
D | 
B | 
 | 
B | 
B | 
 | 
A | 
  | 
B | 
B | 
 | 
 | 
B | 
  | 
A | 
A | 
A | 
 | 
Ammonium Sulfate | 
A | 
D | 
B | 
B | 
 | 
B | 
B | 
 | 
A | 
A | 
B | 
A | 
 | 
 | 
 | 
A | 
A | 
A | 
A | 
 | 
Ammonium Sulfide | 
D | 
D | 
 | 
 | 
 | 
B | 
B | 
 | 
  | 
  | 
D | 
A | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Ammonium Tartrate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Ammonium Thiocyanate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
Ammonium Thiosulfate | 
A | 
D | 
A | 
 | 
 | 
  | 
A | 
 | 
A | 
  | 
B | 
  | 
 | 
 | 
 | 
  | 
  | 
  | 
 | 
 | 
Amyl Acetate | 
B | 
A | 
C | 
A | 
 | 
A | 
A | 
 | 
A | 
D | 
B | 
B | 
A | 
B | 
D | 
A | 
B | 
B | 
A | 
 | 
Amyl Chloride | 
D | 
A | 
A | 
A | 
 | 
C | 
B | 
 | 
C | 
D | 
A | 
C | 
 | 
 | 
D | 
  | 
D | 
D | 
A | 
 | 
Amyl Phthalate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Aniline | 
C | 
D | 
C | 
B | 
 | 
A | 
B | 
 | 
C | 
D | 
A | 
B | 
A | 
 | 
C | 
A | 
A | 
C | 
A | 
 | 
Aniline Chlorohydrate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Aniline Hydrochloride | 
D | 
D | 
 | 
D | 
 | 
D | 
D | 
 | 
A | 
D | 
  | 
D | 
 | 
 | 
 | 
  | 
D | 
B | 
A | 
 | 
Aniline Oils | 
C | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
A | 
D | 
D | 
C | 
 | 
 | 
  | 
 | 
A | 
D | 
A | 
 | 
Anise Oils | 
  | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
  | 
 | 
  | 
  | 
  | 
 | 
Anthraquinone Sulfonic Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Anti-Freeze | 
A | 
B | 
C | 
 | 
 | 
A | 
A | 
 | 
  | 
B | 
D | 
A | 
 | 
A | 
B | 
A | 
B | 
A | 
A | 
 | 
Antimony Plating | 
 | 
  | 
  | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Antimony Plating Solution 130 F | 
  | 
  | 
  | 
 | 
 | 
  | 
A | 
 | 
A | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Antimony Trichloride | 
D | 
D | 
B | 
 | 
 | 
D | 
D | 
 | 
B | 
A | 
  | 
D | 
A | 
 | 
 | 
  | 
A | 
C | 
A | 
 | 
Aqua Regia | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
B | 
U | 
 | 
D | 
A | 
C | 
 | 
 | 
Aqua Regia (80% HCl, 20% HNO3) | 
D | 
D | 
 | 
C | 
 | 
D | 
D | 
 | 
A | 
D | 
D | 
D | 
 | 
 | 
 | 
D | 
B | 
C | 
A | 
 | 
Arochlor 1248 | 
A | 
A | 
A | 
 | 
 | 
B | 
B | 
 | 
A | 
  | 
  | 
A | 
 | 
 | 
 | 
  | 
D | 
  | 
 | 
 | 
Aromatic Hydrocarbons | 
A | 
  | 
A | 
A | 
 | 
  | 
C | 
 | 
  | 
  | 
A | 
A | 
A | 
C | 
B | 
  | 
C | 
B | 
A | 
 | 
Aromatic solvents | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Arsenic Acid | 
D | 
D | 
 | 
 | 
 | 
A | 
C | 
 | 
B | 
D | 
D | 
B | 
 | 
 | 
 | 
A | 
D | 
B | 
 | 
 | 
Arsenic Plating 110F | 
 | 
- | 
- | 
A | 
 | 
 | 
A | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Arsenic Salts | 
  | 
  | 
 | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
A | 
 | 
 | 
 | 
  | 
  | 
A | 
 | 
 | 
Arsenic Trioxide (powder) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Arylsulfonic Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Asphalt | 
B | 
B | 
 | 
 | 
 | 
B | 
A | 
 | 
  | 
  | 
B | 
A | 
 | 
 | 
 | 
A | 
B | 
A | 
A | 
 | 
Barium Carbonate | 
D | 
B | 
B | 
B | 
 | 
B | 
B | 
 | 
A | 
B | 
A | 
A | 
 | 
A | 
B | 
A | 
A | 
A | 
A | 
 | 
Barium Chloride | 
D | 
A | 
A | 
B | 
 | 
A | 
A | 
 | 
A | 
A | 
A | 
B | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Barium Cyanide | 
C | 
C | 
A | 
A | 
 | 
A | 
A | 
 | 
  | 
  | 
B | 
A | 
 | 
 | 
B | 
  | 
D | 
D | 
A | 
 | 
Barium Hydroxide | 
C | 
A | 
B | 
B | 
 | 
B | 
B | 
 | 
B | 
A | 
D | 
A | 
 | 
 | 
B | 
A | 
B | 
A | 
A | 
 | 
Barium Nitrate | 
B | 
C | 
A | 
 | 
 | 
B | 
B | 
 | 
A | 
  | 
B | 
A | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Barium Sulfate | 
B | 
B | 
A | 
A | 
 | 
B | 
B | 
 | 
B | 
A | 
B | 
A | 
 | 
 | 
 | 
A | 
B | 
B | 
A | 
 | 
Barium Sulfide | 
D | 
C | 
C | 
 | 
 | 
B | 
B | 
 | 
A | 
A | 
A | 
A | 
 | 
 | 
B | 
  | 
B | 
A | 
A | 
 | 
Barrel Chrome Bath 95o F | 
 | 
  | 
  | 
 | 
 | 
  | 
D | 
 | 
C | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Bay Oils | 
  | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
  | 
 | 
  | 
 | 
  | 
 | 
Beer | 
A | 
B | 
D | 
A | 
 | 
A | 
A | 
 | 
B | 
B | 
B | 
B | 
A | 
 | 
B | 
A | 
B | 
A | 
A | 
 | 
Beet Sugar Liquids | 
A | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
A | 
B | 
B | 
A | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Benzaldehyde | 
B | 
A | 
A | 
A | 
 | 
B | 
B | 
 | 
A | 
C | 
A | 
B | 
A | 
 | 
D | 
A | 
D | 
B | 
A | 
 | 
Benzalkonium Chloride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Benzene | 
B | 
A | 
B | 
B | 
 | 
B | 
B | 
 | 
A | 
D | 
A | 
A | 
A | 
D | 
B | 
A | 
C | 
B | 
A | 
 | 
Benzene Sulfonic Acid | 
D | 
A | 
A | 
B | 
 | 
B | 
B | 
 | 
B | 
  | 
  | 
D | 
 | 
 | 
 | 
A | 
D | 
A | 
A | 
 | 
Benzoic Acid | 
B | 
A | 
A | 
B | 
 | 
B | 
B | 
 | 
A | 
  | 
B | 
C | 
A | 
B | 
B | 
A | 
B | 
B | 
A | 
 | 
Benzyl | 
B | 
A | 
A | 
B | 
 | 
A | 
A | 
 | 
A | 
D | 
A | 
B | 
 | 
 | 
 | 
A | 
B | 
D | 
A | 
 | 
Benzonitrile | 
  | 
A | 
 | 
C | 
 | 
D | 
D | 
 | 
  | 
  | 
  | 
  | 
 | 
 | 
 | 
C | 
  | 
  | 
A | 
 | 
Benzyl Acetate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
Benzyl Chloride | 
D | 
A | 
 | 
C | 
 | 
C | 
B | 
 | 
  | 
D | 
A | 
A | 
 | 
 | 
 | 
C | 
C | 
A | 
 | 
 | 
Bicarbonate | 
 | 
A | 
C | 
B | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Bismuth Carbonate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Black Chrome Bath 115 F | 
  | 
  | 
  | 
 | 
 | 
  | 
C | 
 | 
A | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Black Liquor | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Bleaching Liquors | 
  | 
  | 
 | 
 | 
 | 
  | 
  | 
 | 
A | 
  | 
  | 
C | 
 | 
 | 
 | 
  | 
B | 
A | 
A | 
 | 
Bone Oils | 
  | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
  | 
 | 
  | 
  | 
  | 
 | 
Borax (Sodium Borate) | 
B | 
B | 
C | 
B | 
 | 
A | 
A | 
 | 
B | 
  | 
B | 
A | 
 | 
A | 
B | 
A | 
B | 
A | 
A | 
 | 
Boric Acid | 
C | 
B | 
A | 
A | 
 | 
B | 
A | 
 | 
A | 
A | 
A | 
B | 
A | 
B | 
B | 
A | 
A | 
A | 
A | 
 | 
Brake Fluid | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
B | 
  | 
A | 
  | 
  | 
  | 
 | 
Brass Plating High Speed Bath 110 F | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Brass Plating Regular Bath 100 F | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Brewery Slop | 
  | 
  | 
 | 
 | 
 | 
  | 
A | 
 | 
  | 
  | 
B | 
  | 
 | 
 | 
 | 
  | 
  | 
  | 
 | 
 | 
Brine (acid) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Brines, saturated | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Bromic Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Bromide (K) solution | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Bromine | 
D | 
D | 
D | 
A | 
 | 
D | 
D | 
 | 
D | 
D | 
D | 
D | 
C | 
 | 
D | 
D | 
D | 
B | 
A | 
 | 
Bromobenzene | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Bromotoluene | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Bronze Plating Copper-Cadmium Bronze Bath R.T. | 
  | 
  | 
  | 
 | 
 | 
  | 
A | 
 | 
A | 
  | 
  | 
A | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Bronze Plating Copper-Tin Bronze Bath 160 F | 
  | 
  | 
  | 
 | 
 | 
  | 
A | 
 | 
A | 
  | 
  | 
A | 
 | 
 | 
  | 
 | 
A | 
D | 
A | 
 | 
Bronze Plating Copper-Zinc Bronze Bath 100 F | 
  | 
  | 
  | 
 | 
 | 
  | 
A | 
 | 
A | 
  | 
  | 
A | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Butadiene | 
A | 
A | 
C | 
C | 
 | 
A | 
A | 
 | 
  | 
A | 
A | 
B | 
 | 
 | 
 | 
A | 
C | 
B | 
A | 
 | 
Butane | 
A | 
A | 
C | 
A | 
 | 
A | 
A | 
 | 
A | 
A | 
A | 
A | 
 | 
 | 
C | 
A | 
C | 
B | 
A | 
 | 
Butanol | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
A | 
 | 
A | 
A | 
A | 
 | 
Butter | 
A | 
  | 
 | 
 | 
 | 
C | 
A | 
 | 
  | 
B | 
A | 
A | 
 | 
A | 
 | 
  | 
A | 
  | 
A | 
 | 
Buttermilk | 
A | 
A | 
 | 
A | 
 | 
A | 
A | 
 | 
  | 
B | 
A | 
B | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Butyl Acetate | 
A | 
  | 
A | 
 | 
 | 
  | 
C | 
 | 
  | 
  | 
A | 
B | 
 | 
D | 
C | 
A | 
B | 
D | 
A | 
 | 
Butyl Amine | 
A | 
A | 
 | 
B | 
 | 
  | 
A | 
 | 
B | 
  | 
C | 
A | 
 | 
 | 
 | 
D | 
B | 
D | 
A | 
 | 
Butyl Carbitol | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Butyl Ether | 
A | 
A | 
 | 
  | 
 | 
  | 
A | 
 | 
  | 
  | 
D | 
A | 
 | 
 | 
 | 
A | 
D | 
A | 
A | 
 | 
Butyl Mercaptan | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Butyl Phenol | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Butyl Phthalate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
C | 
A | 
 | 
 | 
 | 
Butyl Stearate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Butylacetate | 
A | 
A | 
 | 
A | 
 | 
B | 
A | 
 | 
A | 
  | 
A | 
A | 
 | 
 | 
 | 
A | 
B | 
D | 
A | 
 | 
Butyl Cellosolve | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Butylene | 
A | 
A | 
A | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
B | 
 | 
 | 
 | 
A | 
  | 
A | 
A | 
 | 
Butyne Diol | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Butyric Acid | 
B | 
A | 
 | 
A | 
 | 
B | 
B | 
 | 
A | 
D | 
B | 
C | 
 | 
 | 
 | 
A | 
B | 
B | 
A | 
 | 
Cadmium Acetate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Cadmium Chloride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Cadmium Plating Cyanide Bath 90 F | 
  | 
  | 
  | 
A | 
 | 
  | 
A | 
 | 
A | 
  | 
  | 
A | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Cadmium Plating Fluoborate Bath 100 F | 
  | 
  | 
  | 
D | 
 | 
  | 
A | 
 | 
D | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Cadmium Sulfate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Caffeine Citrate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Calcium Acetate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Calcium Bisulfate | 
D | 
D | 
 | 
 | 
 | 
D | 
A | 
 | 
  | 
  | 
  | 
A | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Calcium Bisulfide | 
C | 
  | 
 | 
A | 
 | 
B | 
B | 
 | 
A | 
  | 
D | 
A | 
 | 
 | 
B | 
  | 
A | 
A | 
A | 
 | 
Calcium Bisulfite Bleach Liquor | 
D | 
A | 
 | 
B | 
 | 
C | 
A | 
 | 
A | 
  | 
D | 
A | 
 | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Calcium Carbonate | 
D | 
A | 
A | 
B | 
 | 
A | 
B | 
 | 
B | 
  | 
A | 
A | 
 | 
 | 
B | 
  | 
A | 
A | 
A | 
 | 
Calcium Chlorate | 
  | 
  | 
A | 
 | 
 | 
C | 
A | 
 | 
 | 
  | 
A | 
A | 
 | 
 | 
A | 
  | 
  | 
B | 
A | 
 | 
Calcium Chloride | 
C | 
A | 
A | 
A | 
 | 
C | 
B | 
 | 
A | 
B | 
D | 
B | 
A | 
A | 
B | 
A | 
A | 
B | 
A | 
 | 
Calcium Hydroxide | 
C | 
A | 
A | 
A | 
 | 
B | 
B | 
 | 
A | 
  | 
D | 
A | 
A | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Calcium Hypochlorite 15% | 
D | 
A | 
A | 
B | 
 | 
C | 
B | 
 | 
A | 
  | 
D | 
C | 
 | 
B | 
B | 
A | 
A | 
B | 
B | 
 | 
Calcium Nitrate | 
B | 
A | 
A | 
B | 
 | 
C | 
B | 
 | 
B | 
A | 
D | 
A | 
 | 
 | 
 | 
A | 
A | 
A | 
A | 
 | 
Calcium Oxide | 
C | 
  | 
 | 
A | 
 | 
A | 
A | 
 | 
A | 
D | 
A | 
B | 
 | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Calcium Sulfate | 
C | 
A | 
A | 
B | 
 | 
B | 
B | 
 | 
A | 
C | 
A | 
B | 
 | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Calgon | 
  | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
B | 
A | 
 | 
 | 
 | 
  | 
A | 
  | 
 | 
 | 
Camphor | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
D | 
A | 
 | 
 | 
Cane Juice | 
B | 
  | 
 | 
  | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
  | 
C | 
A | 
A | 
 | 
Caprolactone | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Carbitol | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Carbolic Acid (Phenol) | 
B | 
A | 
A | 
A | 
 | 
B | 
B | 
 | 
A | 
D | 
D | 
D | 
 | 
 | 
 | 
A | 
B | 
D | 
A | 
 | 
Carbolic Acid 50% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
D | 
 | 
 | 
B | 
 | 
 | 
 | 
Carbolic Acid 100% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
D | 
 | 
 | 
B | 
 | 
 | 
 | 
Carbon Bisulfide | 
B | 
  | 
 | 
 | 
 | 
A | 
B | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
  | 
D | 
D | 
 | 
 | 
Carbon Dioxide (dry) | 
B | 
B1 | 
 | 
A | 
 | 
A | 
A | 
 | 
A | 
B | 
A | 
A | 
 | 
 | 
 | 
A | 
A | 
A | 
A | 
 | 
Carbon Dioxide (aqueous solution) | 
B | 
B | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
B | 
A | 
A | 
 | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Carbon Disulfide | 
B | 
B | 
C | 
B | 
 | 
B | 
B | 
 | 
B | 
  | 
A | 
B | 
A | 
 | 
D | 
A | 
D | 
C | 
A | 
 | 
Carbon Monoxide | 
A | 
A | 
 | 
B | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
B | 
  | 
A | 
A | 
A | 
 | 
Carbon Tetrachloride (dry) | 
D | 
A | 
A | 
B | 
 | 
B | 
B | 
 | 
A | 
D | 
  | 
B | 
A | 
B | 
 | 
A | 
D | 
A | 
A | 
 | 
Carbon Tetrachloride (wet) | 
D | 
A | 
A | 
B | 
 | 
A | 
A | 
 | 
A | 
D | 
A | 
B | 
 | 
B | 
 | 
A | 
D | 
  | 
A | 
 | 
Carbonated Water | 
A | 
D | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
A | 
B | 
A | 
 | 
 | 
Carbonic Acid | 
B | 
C | 
A | 
A | 
 | 
A | 
B | 
 | 
B | 
  | 
A | 
A | 
A | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Carene 500 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Castor Oil | 
A | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
A | 
  | 
 | 
A | 
A | 
  | 
 | 
Catsup | 
D | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
B | 
B | 
A | 
 | 
 | 
 | 
  | 
A | 
A | 
 | 
 | 
Caustic Soda | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
C | 
A | 
C | 
  | 
 | 
B | 
A | 
  | 
 | 
Cellosolve Acetate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
 | 
Champhor | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
 | 
  | 
 | 
B | 
  | 
  | 
 | 
Chloracetic Acid | 
C | 
  | 
  | 
 | 
 | 
D | 
D | 
 | 
A | 
  | 
D | 
D | 
 | 
 | 
D | 
 | 
D | 
A | 
A | 
 | 
Chloral Hydrate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Chloramine | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Chlorinated Glue | 
D | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
D | 
D | 
C | 
 | 
 | 
 | 
  | 
  | 
  | 
 | 
 | 
Chlorinated Solvents | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Chlorine (dry) | 
C | 
D | 
 | 
A | 
 | 
A | 
B | 
 | 
D | 
  | 
D | 
D | 
A | 
D | 
 | 
D | 
D | 
D | 
A | 
 | 
Chlorine (gas) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Chlorine (liquid) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Chlorinated Water (Hypochlorite) | 
D | 
D | 
A | 
A | 
 | 
C | 
C | 
 | 
A | 
  | 
D | 
C | 
 | 
 | 
 | 
D | 
D | 
C | 
A | 
 | 
Chlorine, Anhydrous Liquid | 
D | 
D | 
 | 
D | 
 | 
C | 
C | 
 | 
D | 
  | 
C | 
D | 
A | 
 | 
D | 
D | 
D | 
D | 
A | 
 | 
Chloroacetic Acid | 
D | 
C | 
 | 
A | 
 | 
B | 
A | 
 | 
A | 
  | 
D | 
D | 
A | 
 | 
B | 
A | 
B | 
B | 
A | 
 | 
Chloroacetyl Chloride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Chlorobenzene (Mono) | 
B | 
B | 
B | 
A | 
 | 
A | 
B | 
 | 
B | 
D | 
C | 
B | 
A | 
C | 
D | 
A | 
D | 
D | 
B | 
 | 
Chlorobromomethane | 
  | 
  | 
A | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
C | 
 | 
 | 
 | 
  | 
A | 
D | 
A | 
 | 
Chloroform | 
B | 
B | 
B | 
A | 
 | 
A | 
A | 
 | 
A | 
D | 
A | 
C | 
A | 
D | 
B | 
A | 
B | 
D | 
A | 
 | 
Chloropicrin | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Chlorosulfonic Acid | 
C | 
B | 
A | 
A | 
 | 
D | 
B | 
 | 
A | 
  | 
D | 
D | 
A | 
 | 
D | 
D | 
D | 
C | 
A | 
 | 
Chlorox (Bleach) | 
C | 
  | 
C | 
 | 
 | 
A | 
A | 
 | 
  | 
B | 
D | 
D | 
 | 
 | 
  | 
 | 
D | 
A | 
A | 
 | 
Chocolate Syrup | 
A | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
  | 
A | 
  | 
A | 
 | 
Chrome Alum | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Chromic Acid 05% | 
C | 
C | 
A | 
B | 
 | 
B | 
A | 
 | 
A | 
B | 
D | 
D | 
 | 
D | 
B | 
A | 
C | 
A | 
A | 
 | 
Chromic Acid 10% | 
D | 
D | 
A | 
A | 
 | 
B | 
B | 
 | 
A | 
B | 
D | 
D | 
 | 
 | 
 | 
A | 
D | 
A | 
A | 
 | 
Chromic Acid 30% | 
D | 
C | 
A | 
D | 
 | 
B | 
B | 
 | 
A | 
B | 
D | 
D | 
 | 
 | 
 | 
B | 
D | 
A | 
A | 
 | 
Chromic Acid 50% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Chromic Acid/Sulfuric Acid/water-50%/15%/35% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Chromic/Nitric Acid (15%/35%) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Chromic-Sulfuric Bath 130 F | 
  | 
  | 
  | 
 | 
 | 
  | 
C | 
 | 
A | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Chromium Salts | 
  | 
  | 
 | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
 | 
 | 
  | 
  | 
A | 
 | 
 | 
Chromium: Barrel Chrome Bath 95 F | 
  | 
  | 
  | 
D | 
 | 
  | 
D | 
 | 
C | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Chromium: Black Chrome Bath 115 F | 
  | 
  | 
  | 
D | 
 | 
  | 
C | 
 | 
A | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Chromium: Chromic-Sulfuric Bath 130 F | 
  | 
  | 
  | 
D | 
 | 
  | 
C | 
 | 
A | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Chromium: Fluoride Bath 130 F | 
  | 
  | 
  | 
 | 
 | 
  | 
D | 
 | 
C | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Chromium: Fluosilicate Bath 95 F | 
  | 
  | 
  | 
 | 
 | 
  | 
C | 
 | 
C | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Chromium Nitrate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Cider | 
B | 
  | 
A | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
B | 
A | 
A | 
A | 
 | 
 | 
Cinnamon Oil | 
  | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
  | 
 | 
A | 
  | 
A | 
 | 
Citric Acid | 
C | 
C | 
A | 
A | 
 | 
B | 
A | 
 | 
A | 
C | 
B | 
C | 
A | 
 | 
B | 
A | 
B | 
B | 
A | 
 | 
Citric Acid 10% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
B | 
 | 
 | 
B | 
 | 
 | 
 | 
Citric Acid 20% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
B | 
 | 
 | 
B | 
 | 
 | 
 | 
Citric Oils | 
C | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
B | 
A | 
 | 
A | 
 | 
  | 
A | 
  | 
 | 
 | 
Clorox® (Bleach) | 
A | 
  | 
 | 
A | 
 | 
A | 
A | 
 | 
  | 
B | 
D | 
A | 
 | 
 | 
 | 
D | 
D | 
A | 
A | 
 | 
Clove Oil | 
  | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
  | 
 | 
B | 
  | 
  | 
 | 
Cocoa Butter | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
B | 
  | 
 | 
B | 
  | 
  | 
 | 
Coconut Oil | 
B | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
A | 
  | 
 | 
A | 
  | 
  | 
 | 
Coconut Oil Alcohol | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
R | 
 | 
 | 
Cod Liver Oil | 
B | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
C | 
A | 
A | 
 | 
A | 
  | 
 | 
A | 
  | 
  | 
 | 
Coffee | 
A | 
  | 
 | 
A | 
 | 
A | 
A | 
 | 
A | 
  | 
A | 
A | 
 | 
 | 
 | 
A | 
A | 
  | 
A | 
 | 
Copper | 
 | 
  | 
  | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Copper Acetate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Copper Carbonate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Copper Chloride | 
D | 
  | 
A | 
 | 
 | 
D | 
D | 
 | 
C | 
A | 
B | 
D | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Copper Cyanide | 
D | 
C | 
A | 
A | 
 | 
B | 
B | 
 | 
B | 
  | 
B | 
B | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Copper Fluoborate | 
  | 
  | 
 | 
C | 
 | 
D | 
D | 
 | 
  | 
  | 
B | 
D | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Copper Fluoride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Copper Nitrate | 
D | 
C | 
A | 
B | 
 | 
A | 
A | 
 | 
B | 
  | 
B | 
D | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Copper Plating (Acid) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Copper Pyrophosphate 140 F | 
  | 
  | 
  | 
 | 
 | 
  | 
A | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Copper Salts | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
A | 
D | 
 | 
 | 
D | 
 | 
 | 
 | 
Copper Strike Bath 120 F | 
A | 
  | 
  | 
A | 
 | 
A | 
A | 
 | 
A | 
  | 
  | 
A | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Copper Sulfate 5%   Solution | 
D | 
D | 
A | 
A | 
 | 
B | 
B | 
 | 
A | 
  | 
C | 
D | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Copper Sulfate >5% | 
D | 
D | 
 | 
A | 
 | 
B | 
B | 
 | 
A | 
  | 
D | 
D | 
 | 
 | 
 | 
A | 
A | 
A | 
A | 
 | 
Copper Sulfate Bath | 
 | 
 | 
 | 
D | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Copper Sulfate Bath R.T. | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
A | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Copper: (Acid) Copper Fluoborate Bath 120 F | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
D | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Copper: (Acid) Copper Sulfate Bath R.T. | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
A | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Copper: (Cyanide) Rochelle Salt Bath 150 F | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
  | 
A | 
 | 
 | 
 | 
 | 
A | 
D | 
A | 
 | 
Copper: (Electroless) 140 F | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
  | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Copper: Copper Pyrophosphate 140 F | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
  | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Copper:  High-Speed Bath 180F | 
 | 
 | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
D | 
A | 
 | 
Copper:(Cyanide) Copper Strike Bath 120F | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
 | 
A | 
 | 
  | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Copper:(Cyanide) High Speed Bath 180 F | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
  | 
A | 
 | 
 | 
 | 
 | 
A | 
D | 
A | 
 | 
Copper-Tin-Bronze Bath 160 F | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
  | 
A | 
 | 
 | 
 | 
 | 
A | 
D | 
A | 
 | 
Copper-Zinc-Bronze Bath 100 F | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
  | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Corn Oil | 
B | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
C | 
A | 
A | 
 | 
A | 
  | 
 | 
A | 
A | 
  | 
 | 
Corn Syrup | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Cotton Seed Oil | 
B | 
  | 
C | 
 | 
 | 
A | 
A | 
 | 
  | 
C | 
A | 
A | 
 | 
A | 
  | 
A | 
A | 
A | 
A | 
 | 
Cream | 
A | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
  | 
A | 
  | 
A | 
 | 
Creosote | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Cresols | 
B | 
B | 
  | 
B | 
 | 
A | 
A | 
 | 
B | 
D | 
D | 
D | 
 | 
 | 
D | 
A | 
C | 
D | 
  | 
 | 
Cresote Oil | 
A | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
D | 
  | 
 | 
 | 
  | 
 | 
D | 
  | 
  | 
 | 
Cresylic Acid | 
B | 
A | 
 | 
B | 
 | 
A | 
A | 
 | 
A | 
D | 
D | 
D | 
A | 
 | 
C | 
  | 
A | 
C | 
A | 
 | 
Crotonaldehyde | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Cu-Cd Bronze Bath | 
 | 
  | 
  | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Cumene | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Cupric Acid | 
D | 
A | 
 | 
A | 
 | 
D | 
B | 
 | 
A | 
  | 
  | 
D | 
 | 
 | 
 | 
A | 
A | 
A | 
A | 
 | 
Cupric Fluoride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Cupric Sulfate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Cuprous Chloride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Cu-Sn Bronze Bath | 
 | 
  | 
  | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
D | 
A | 
 | 
Cu-Zn Bronze Bath 100F | 
 | 
  | 
  | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
  | 
A | 
 | 
Cyanic Acid | 
  | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
D | 
  | 
 | 
 | 
 | 
  | 
  | 
  | 
A | 
 | 
Cyanide Bath 90 F | 
  | 
  | 
  | 
 | 
 | 
  | 
A | 
 | 
A | 
  | 
  | 
A | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Cyclanones | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Cyclohexane | 
A | 
A | 
A | 
B | 
 | 
A | 
A | 
 | 
A | 
  | 
A | 
A | 
A | 
A | 
B | 
A | 
C | 
D | 
A | 
 | 
Cyclohexanol | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
 | 
  | 
A | 
B | 
C | 
  | 
 | 
Cyclohexanone | 
A | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
  | 
D | 
A | 
A | 
A | 
 | 
C | 
A | 
C | 
D | 
A | 
 | 
Cycolic Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
  | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D.D.T. (Xylene Base) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Decalin | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
D | 
  | 
 | 
D | 
  | 
  | 
 | 
Desocyephedrine Hydrochloride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Detergents | 
B | 
A | 
A | 
B | 
 | 
A | 
A | 
 | 
A | 
B | 
B | 
A | 
A | 
A | 
B | 
A | 
A | 
A | 
A | 
 | 
Dextrin | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Dextrose | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Diazo Salts | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Dibutoxy Ethyl Phthalate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Dibutyl Phthalate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Dibutyl Sebacate | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
  | 
 | 
 | 
B | 
 | 
B | 
C | 
  | 
 | 
Dichlorethane | 
B | 
B | 
A | 
A | 
 | 
B | 
B | 
 | 
B | 
D | 
A | 
A | 
 | 
 | 
D | 
C | 
D | 
D | 
A | 
 | 
Dichlorobenzene | 
B | 
A | 
 | 
A | 
 | 
  | 
B | 
 | 
  | 
D | 
  | 
C | 
 | 
 | 
 | 
  | 
C | 
D | 
A | 
 | 
Dichloroethylene | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Diesel Fuel (2D, 3D, 4D, 5D) | 
A | 
A | 
A | 
B | 
 | 
A | 
A | 
 | 
B | 
  | 
A | 
A | 
 | 
 | 
  | 
A | 
A | 
A | 
A | 
 | 
Diethyl Ether | 
B | 
B | 
 | 
B | 
 | 
B | 
B | 
 | 
A | 
D | 
  | 
A | 
A | 
 | 
 | 
A | 
A | 
D | 
A | 
 | 
Diethylamine | 
B | 
A | 
 | 
A | 
 | 
A | 
A | 
 | 
A | 
D | 
C | 
A | 
A | 
 | 
C | 
  | 
A | 
B | 
A | 
 | 
Diethylene Glycol | 
B | 
A | 
 | 
B | 
 | 
A | 
A | 
 | 
A | 
B | 
A | 
B | 
 | 
C | 
B | 
  | 
A | 
C | 
A | 
 | 
Diethylketone | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
C | 
 | 
D | 
  | 
 | 
B | 
  | 
  | 
 | 
Diisobutylene | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
Dill Oil | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Dimethyl Aniline | 
A | 
A | 
 | 
B | 
 | 
B | 
B | 
 | 
A | 
D | 
D | 
A | 
 | 
 | 
 | 
A | 
D | 
D | 
A | 
 | 
Dimethyl Formamide | 
A | 
  | 
 | 
 | 
 | 
A | 
B | 
 | 
  | 
D | 
D | 
C | 
A | 
B | 
A | 
A | 
A | 
D | 
A | 
 | 
Dimethyl Hydrazine | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Dimethyl Phthalate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
Dimethyl Sulfoxide | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
Dimethyl Amine | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Dioctyl Phthalate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
C | 
 | 
C | 
 | 
 | 
Dioxane | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Diphenyl Ether | 
B | 
B | 
 | 
B | 
 | 
B | 
B | 
 | 
B | 
  | 
  | 
D | 
 | 
 | 
 | 
C | 
D | 
  | 
A | 
 | 
Diphenyl Oxide | 
B | 
  | 
 | 
B | 
 | 
B | 
A | 
 | 
A | 
  | 
C | 
  | 
 | 
 | 
 | 
A | 
D | 
D | 
A | 
 | 
Disodium Phosphate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Dowtherm | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
Dyes | 
B | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
C | 
A | 
 | 
 | 
 | 
  | 
  | 
B | 
 | 
 | 
EDTA, Tetrasodium | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Ehtyl Ester (ethyl acrylate) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Electroless 200 F | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
D | 
D | 
A | 
 | 
Emulsifiers, concentrated | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Epichlorohydrin | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
C | 
 | 
 | 
  | 
C | 
B | 
  | 
  | 
 | 
Epsom Salts (Magnesium Sulfate) | 
B | 
A | 
 | 
B | 
 | 
A | 
B | 
 | 
A | 
B | 
B | 
A | 
 | 
 | 
 | 
A | 
A | 
C | 
A | 
 | 
Essential Oils | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
 | 
  | 
 | 
C | 
  | 
  | 
 | 
Esters | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Ethane | 
A | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
D | 
 | 
 | 
 | 
A | 
D | 
A | 
A | 
 | 
Ethanol | 
B | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
B | 
A | 
A | 
A | 
 | 
B | 
  | 
A | 
C | 
A | 
 | 
Ethanolamine | 
B | 
A | 
B | 
B | 
 | 
A | 
A | 
 | 
B | 
  | 
D | 
A | 
 | 
 | 
 | 
A | 
D | 
D | 
A | 
 | 
Ether | 
B | 
B | 
B | 
B | 
 | 
A | 
A | 
 | 
A | 
D | 
A | 
B | 
A | 
B | 
B | 
A | 
C | 
D | 
A | 
 | 
Ethoxyethanol | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
Ethyl Acetate | 
A | 
B | 
B | 
A | 
 | 
B | 
B | 
 | 
A | 
D | 
A | 
A | 
 | 
C | 
C | 
A | 
C | 
D | 
A | 
 | 
Ethyl Acrylate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Ethyl Benzoate | 
  | 
  | 
 | 
 | 
 | 
  | 
  | 
 | 
  | 
D | 
  | 
  | 
 | 
 | 
 | 
  | 
B | 
D | 
A | 
 | 
Ethyl Chloride | 
B | 
A | 
C | 
B | 
 | 
A | 
A | 
 | 
A | 
D | 
A | 
A | 
 | 
 | 
D | 
A | 
D | 
D | 
A | 
 | 
Ethyl Ether | 
B | 
B | 
 | 
B | 
 | 
B | 
B | 
 | 
A | 
D | 
A | 
A | 
 | 
B | 
 | 
A | 
B | 
D | 
A | 
 | 
Ethyl Sulfate | 
  | 
A | 
 | 
 | 
 | 
D | 
D | 
 | 
  | 
  | 
B | 
  | 
 | 
 | 
 | 
  | 
  | 
  | 
A | 
 | 
Ethylacetate | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
C | 
A | 
 | 
B | 
 | 
A | 
  | 
A | 
 | 
Ethylene Bromide | 
B | 
A | 
 | 
B | 
 | 
A | 
A | 
 | 
B | 
D | 
  | 
  | 
 | 
 | 
 | 
  | 
D | 
D | 
A | 
 | 
Ethylene Chloride | 
C | 
A | 
B | 
 | 
 | 
B | 
B | 
 | 
B | 
D | 
A | 
A | 
 | 
 | 
B | 
A | 
B | 
D | 
A | 
 | 
Ethylene Chlorohydrin | 
B | 
B | 
 | 
B | 
 | 
B | 
B | 
 | 
B | 
D | 
D | 
D | 
 | 
 | 
 | 
  | 
D | 
D | 
A | 
 | 
Ethylene Diamine | 
B | 
D | 
 | 
C | 
 | 
B | 
B | 
 | 
A | 
D | 
D | 
D | 
 | 
 | 
 | 
A | 
  | 
D | 
A | 
 | 
Ethylene Dichloride | 
C | 
B | 
B | 
B | 
 | 
B | 
B | 
 | 
B | 
D | 
B | 
A | 
 | 
D | 
D | 
A | 
D | 
D | 
A | 
 | 
Ethylene Glycol | 
A | 
B | 
B | 
B | 
 | 
B | 
B | 
 | 
A | 
A | 
B | 
A | 
A | 
B | 
A | 
A | 
A | 
A | 
A | 
 | 
Ethylene Oxide | 
D | 
C | 
 | 
A | 
 | 
B | 
B | 
 | 
  | 
D | 
D | 
B | 
 | 
B | 
 | 
D | 
D | 
D | 
A | 
 | 
Fatty Acids | 
A | 
B | 
A | 
A | 
 | 
B | 
A | 
 | 
B | 
A | 
A | 
A | 
 | 
 | 
B | 
  | 
A | 
A | 
A | 
 | 
Ferric Acetate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Ferric Chloride | 
D | 
C | 
 | 
B | 
 | 
D | 
D | 
 | 
A | 
A | 
D | 
C | 
A | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Ferric Hydroxide | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Ferric Nitrate | 
D | 
C | 
 | 
B | 
 | 
B | 
B | 
 | 
A | 
A | 
C | 
B | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Ferric Sulfate | 
D | 
C | 
A | 
A | 
 | 
B | 
A | 
 | 
A | 
B | 
C | 
A | 
 | 
 | 
 | 
A | 
A | 
A | 
A | 
 | 
Ferrous Am. Sulfate Bath 150 F | 
 | 
  | 
  | 
A | 
 | 
 | 
C | 
 | 
A | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
D | 
A | 
 | 
Ferrous Chloride | 
D | 
C | 
 | 
B | 
 | 
D | 
D | 
 | 
A | 
A | 
C | 
D | 
 | 
B | 
B | 
A | 
A | 
A | 
A | 
 | 
Ferrous Chloride Bath 190 F | 
  | 
  | 
  | 
D | 
 | 
  | 
D | 
 | 
A | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
C | 
D | 
A | 
 | 
Ferrous Sulfate | 
B | 
A | 
A | 
B | 
 | 
B | 
B | 
 | 
A | 
A | 
B | 
D | 
A | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Ferrous Sulfate Bath 150 F | 
  | 
  | 
  | 
A | 
 | 
  | 
C | 
 | 
A | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
D | 
A | 
 | 
Fish Solubles | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Flourine | 
D | 
  | 
D | 
 | 
 | 
D | 
D | 
 | 
D | 
  | 
  | 
D | 
 | 
 | 
C | 
 | 
  | 
C | 
C | 
 | 
Flousilicic Acid | 
D | 
  | 
  | 
 | 
 | 
  | 
B | 
 | 
D | 
  | 
B | 
D | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Fluboric Acid | 
  | 
  | 
  | 
 | 
 | 
D | 
B | 
 | 
D | 
  | 
B | 
C | 
 | 
 | 
B | 
 | 
A | 
A | 
A | 
 | 
Fluoborate Bath 100 F | 
  | 
  | 
  | 
 | 
 | 
  | 
A | 
 | 
D | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Fluoborate Bath 145F | 
 | 
  | 
  | 
B | 
 | 
 | 
D | 
 | 
D | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
D | 
A | 
 | 
Fluoboric Acid | 
D | 
A | 
C | 
A | 
 | 
B | 
B | 
 | 
D | 
A | 
A | 
D | 
 | 
 | 
 | 
A | 
A | 
A | 
A | 
 | 
Fluoride Bath 130F | 
 | 
  | 
  | 
D | 
 | 
 | 
D | 
 | 
C | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Fluorinated refrigerants | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Fluorine | 
A | 
B | 
 | 
B | 
 | 
C | 
A | 
 | 
D | 
A | 
D | 
D | 
A | 
 | 
 | 
D | 
D | 
D | 
B | 
 | 
Fluoroboric Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Fluosilicate Bath 95F | 
 | 
  | 
  | 
D | 
 | 
 | 
C | 
 | 
C | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
D | 
A | 
A | 
 | 
Fluosilicic Acid | 
D | 
B | 
C | 
B | 
 | 
C | 
B | 
 | 
D | 
A | 
A | 
D | 
 | 
 | 
 | 
A | 
A | 
D | 
A | 
 | 
Formaldehyde 40% | 
B | 
A | 
 | 
B | 
 | 
C | 
A | 
 | 
B | 
B | 
A | 
C | 
A | 
B | 
 | 
A | 
A | 
A | 
A | 
 | 
Formaldehyde 100% | 
B | 
  | 
 | 
B | 
 | 
C | 
A | 
 | 
B | 
B | 
A | 
D | 
 | 
 | 
 | 
B | 
C | 
A | 
A | 
 | 
Formic Acid | 
C | 
B | 
D | 
A | 
 | 
B | 
A | 
 | 
C | 
D | 
C | 
D | 
A | 
B | 
B | 
A | 
A | 
C | 
A | 
 | 
Freon 11 | 
C | 
  | 
B | 
A | 
 | 
A | 
A | 
 | 
B | 
D | 
D | 
B | 
 | 
 | 
C | 
A | 
A | 
A | 
A | 
 | 
Freon 12 | 
B | 
B | 
 | 
A | 
 | 
B | 
B | 
 | 
B | 
A | 
B | 
A | 
 | 
 | 
C | 
B | 
A | 
B | 
A | 
 | 
Freon 21 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Freon 22 | 
C | 
A | 
 | 
A | 
 | 
A | 
A | 
 | 
B | 
  | 
A | 
B | 
 | 
 | 
 | 
A | 
B | 
B | 
A | 
 | 
Freon 113 | 
B | 
  | 
A | 
A | 
 | 
  | 
A | 
 | 
C | 
  | 
A | 
A | 
 | 
 | 
 | 
A | 
D | 
B | 
A | 
 | 
Freon 114 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Freon T.F. | 
C | 
  | 
A | 
A | 
 | 
A | 
A | 
 | 
B | 
  | 
A | 
C | 
 | 
 | 
  | 
D | 
D | 
B | 
A | 
 | 
Fructcose | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Fruit Juice | 
A | 
D | 
C | 
A | 
 | 
A | 
A | 
 | 
A | 
B | 
C | 
A | 
A | 
 | 
B | 
  | 
B | 
B | 
B | 
 | 
Fuel (1, 2, 3, 5A, 5B, 6) | 
C | 
A | 
B | 
A | 
 | 
A | 
A | 
 | 
A | 
D | 
A | 
A | 
 | 
 | 
D | 
A | 
A | 
A | 
B | 
 | 
Furan Resin | 
A | 
  | 
A | 
B | 
 | 
A | 
A | 
 | 
  | 
 | 
C | 
  | 
 | 
 | 
 | 
A | 
D | 
A | 
A | 
 | 
Furfural | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Gallic Acid | 
C | 
B | 
D | 
B | 
 | 
A | 
B | 
 | 
B | 
  | 
  | 
A | 
 | 
 | 
 | 
A | 
A | 
B | 
B | 
 | 
Gasoline | 
A | 
  | 
A | 
 | 
 | 
A | 
A | 
 | 
D | 
D | 
A | 
A | 
 | 
B | 
D | 
A | 
C | 
C | 
A | 
 | 
Gasoline (high-aromatic) | 
D | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
B | 
D | 
B | 
A | 
 | 
 | 
 | 
A | 
A | 
A | 
B | 
 | 
Gasoline, leaded, ref. | 
A | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
D | 
A | 
A | 
 | 
 | 
 | 
A | 
B | 
B | 
A | 
 | 
Gasoline, unleaded | 
A | 
A | 
 | 
A | 
 | 
A | 
A | 
 | 
A | 
D | 
A | 
A | 
 | 
 | 
 | 
A | 
C | 
C | 
A | 
 | 
Gelatin | 
A | 
C | 
D | 
A | 
 | 
A | 
A | 
 | 
A | 
  | 
B | 
A | 
A | 
 | 
 | 
  | 
A | 
B | 
A | 
 | 
Ginger Oil | 
 | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
  | 
 | 
  | 
  | 
  | 
 | 
Glucose | 
A | 
A | 
B | 
A | 
 | 
A | 
A | 
 | 
A | 
B | 
A | 
A | 
 | 
A | 
B | 
B | 
A | 
A | 
A | 
 | 
Glue P.V.A. | 
B | 
A | 
A | 
 | 
 | 
B | 
A | 
 | 
A | 
  | 
A | 
A | 
 | 
 | 
  | 
 | 
  | 
C | 
A | 
 | 
Glycerine | 
A | 
B | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
C | 
A | 
B | 
A | 
A | 
 | 
A | 
A | 
A | 
A | 
 | 
Glycol Ethers | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Glycol, Ethylene | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Glycolic Acid | 
  | 
A | 
 | 
A | 
 | 
A | 
A | 
 | 
A | 
B | 
B | 
  | 
 | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Gold Monocyanide | 
  | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
 | 
  | 
  | 
  | 
D | 
 | 
Gold Plating Cyanide 150 F | 
  | 
  | 
  | 
 | 
 | 
  | 
A | 
 | 
A | 
  | 
  | 
A | 
 | 
 | 
  | 
 | 
A | 
D | 
A | 
 | 
Gold Plating Neutral 75 F | 
  | 
  | 
  | 
 | 
 | 
  | 
C | 
 | 
A | 
  | 
  | 
A | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Gold: Acid 75F | 
 | 
  | 
  | 
A | 
 | 
  | 
C | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Gold: Neutral 75 F | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Grape Juice | 
B | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
A | 
B | 
B | 
A | 
 | 
 | 
B | 
  | 
  | 
A | 
A | 
 | 
Grease | 
A | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
  | 
  | 
C | 
 A | 
 | 
 | 
 | 
  | 
  | 
A | 
A | 
 | 
Halocarbon Oils | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Heptane | 
A | 
A | 
B | 
A | 
 | 
A | 
A | 
 | 
A | 
C | 
A | 
A | 
A | 
 | 
B | 
A | 
B | 
B | 
A | 
 | 
Hercolyn | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Hexamine | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Hexane | 
A | 
A | 
B | 
A | 
 | 
A | 
A | 
 | 
A | 
D | 
A | 
B | 
A | 
B | 
B | 
A | 
B | 
B | 
A | 
 | 
Hexanol, Tertiary | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Hexene | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
Hexyl | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
High Chloride 130-160 F | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
A | 
 | 
  | 
D | 
 | 
 | 
 | 
 | 
A | 
D | 
A | 
 | 
High Speed Bath 180 F | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
D | 
A | 
 | 
High Speed Brass | 
 | 
A | 
  | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Honey | 
A | 
  | 
 | 
A | 
 | 
A | 
A | 
 | 
  | 
B | 
A | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Hydraulic Oil (Petro) | 
A | 
A | 
 | 
A | 
 | 
A | 
A | 
 | 
  | 
  | 
B | 
A | 
 | 
 | 
  | 
D | 
D | 
A | 
A | 
 | 
Hydraulic Oil (Synthetic) | 
A | 
B | 
 | 
A | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
A | 
D | 
A | 
A | 
 | 
Hydrazine | 
  | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
C | 
  | 
A | 
 | 
 | 
C | 
C | 
A | 
 | 
 | 
Hydrobromic Acid | 
D | 
  | 
D | 
 | 
 | 
D | 
D | 
 | 
A | 
  | 
D | 
D | 
 | 
 | 
B | 
D | 
B | 
A | 
A | 
 | 
Hydrobromic Acid 20% | 
D | 
D | 
 | 
 | 
 | 
D | 
D | 
 | 
A | 
  | 
C | 
D | 
C | 
 | 
B | 
D | 
A | 
B | 
A | 
 | 
Hydrobromic Acid 100% | 
D | 
D | 
 | 
 | 
 | 
D | 
D | 
 | 
A | 
B | 
D | 
D | 
C | 
 | 
B | 
A | 
B | 
A | 
A | 
 | 
Hydrochloric | 
 | 
A | 
C | 
B | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
D | 
A | 
 | 
 | 
D | 
A | 
C | 
A | 
 | 
Hydrochloric Acid 10% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
D | 
A | 
B | 
 | 
D | 
B | 
A | 
A | 
 | 
Hydrochloric Acid 20% | 
D | 
  | 
  | 
 | 
 | 
D | 
D | 
 | 
C | 
B | 
D | 
D | 
A | 
 | 
A | 
D | 
B | 
A | 
A | 
 | 
Hydrochloric Acid 37% | 
D | 
  | 
  | 
 | 
 | 
D | 
D | 
 | 
C | 
C | 
D | 
D | 
 | 
D | 
A | 
D | 
B | 
B | 
A | 
 | 
Hydrochloric Acid 100% | 
D | 
D | 
 | 
 | 
 | 
D | 
D | 
 | 
D | 
D | 
D | 
D | 
A | 
 | 
A | 
D | 
B | 
C | 
A | 
 | 
Hydrochloric Acid (Dry Gas) | 
D | 
D | 
D | 
 | 
 | 
C | 
C | 
 | 
C | 
  | 
  | 
A | 
 | 
 | 
  | 
A | 
B | 
A | 
A | 
 | 
Hydrocyanic Acid (Gas 10%) | 
  | 
  | 
 | 
 | 
 | 
D | 
D | 
 | 
A | 
  | 
C | 
  | 
 | 
 | 
 | 
D | 
A | 
A | 
A | 
 | 
Hydrocyanic Acid | 
A | 
C | 
C | 
A | 
 | 
B | 
A | 
 | 
B | 
B | 
B | 
B | 
A | 
 | 
B | 
B | 
A | 
B | 
A | 
 | 
Hydrofluoric Acid | 
 | 
A | 
C | 
B | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
D | 
 | 
D | 
 | 
D | 
B | 
C | 
A | 
 | 
Hydrofluoric Acid 20% | 
D | 
  | 
  | 
 | 
 | 
D | 
D | 
 | 
D | 
C | 
D | 
D | 
 | 
 | 
A | 
A | 
A | 
C | 
A | 
 | 
Hydrofluoric Acid 50% | 
D | 
  | 
 | 
 | 
 | 
D | 
D | 
 | 
D | 
C | 
D | 
D | 
 | 
 | 
 | 
A | 
A | 
B | 
 | 
 | 
Hydrofluoric Acid 75% | 
D | 
  | 
  | 
 | 
 | 
C | 
D | 
 | 
D | 
D | 
D | 
D | 
 | 
 | 
C | 
B | 
B | 
C | 
A | 
 | 
Hydrofluoric Acid 100% | 
D | 
  | 
D | 
 | 
 | 
C | 
C | 
 | 
D | 
D | 
D | 
D | 
C | 
 | 
D | 
D | 
B | 
C | 
A | 
 | 
Hydrofluosilicic Acid | 
 | 
A | 
  | 
B | 
 | 
 | 
C | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
B | 
A | 
 | 
Hydrofluosilicic Acid (20%) | 
D | 
  | 
  | 
 | 
 | 
C | 
B | 
 | 
D | 
  | 
B | 
D | 
 | 
 | 
  | 
A | 
A | 
B | 
A | 
 | 
Hydrofluosilicic Acid 100% | 
D | 
  | 
 | 
 | 
 | 
D | 
D | 
 | 
D | 
  | 
B | 
D | 
 | 
 | 
 | 
A | 
A | 
B | 
 | 
 | 
Hydrogen Gas | 
A | 
C | 
B | 
A | 
 | 
A | 
A | 
 | 
A | 
  | 
  | 
A | 
 | 
 | 
 | 
A | 
A | 
A | 
A | 
 | 
Hydrogen Peroxide | 
A | 
D | 
D | 
 | 
 | 
A | 
B | 
 | 
B | 
  | 
D | 
C | 
 | 
 | 
  | 
D | 
A | 
A | 
A | 
 | 
Hydrogen Peroxide 10% | 
A | 
D | 
 | 
 | 
 | 
C | 
C | 
 | 
C | 
A | 
D | 
C | 
A | 
 | 
A | 
A | 
A | 
A | 
 | 
 | 
Hydrogen Peroxide 30% | 
A | 
C | 
 | 
A | 
 | 
B | 
B | 
 | 
B | 
  | 
D | 
D | 
 | 
B | 
A | 
A | 
B | 
A | 
A | 
 | 
Hydrogen Peroxide 100% | 
A | 
D | 
 | 
 | 
 | 
B | 
B | 
 | 
B | 
D | 
D | 
D | 
A | 
 | 
B | 
C | 
B | 
A | 
A | 
 | 
Hydrogen Phosphide | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Hydrogen Sulfide | 
 | 
A | 
  | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Hydrogen Sulfide (aqua) | 
B | 
B | 
A | 
 | 
 | 
B | 
A | 
 | 
B | 
B | 
C | 
C | 
A | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Hydrogen Sulfide (dry) | 
C | 
D | 
B | 
 | 
 | 
C | 
A | 
 | 
A | 
  | 
  | 
C | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Hydroquinone | 
B | 
  | 
 | 
A | 
 | 
B | 
B | 
 | 
B | 
D | 
A | 
D | 
 | 
B | 
B | 
  | 
A | 
A | 
A | 
 | 
Hydroxyacetic Acid 70% | 
D | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
B | 
  | 
C | 
  | 
 | 
 | 
  | 
 | 
  | 
C | 
  | 
 | 
Hydroxylamine Sulfate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Hypochlorite | 
 | 
A | 
B | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Hypochlorous Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Indium Sulfamate Plating R.T. | 
 | 
  | 
A | 
A | 
 | 
C | 
C | 
 | 
A | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Ink | 
C | 
  | 
A | 
 | 
 | 
C | 
C | 
 | 
  | 
A | 
B | 
C | 
 | 
 | 
 | 
  | 
  | 
C | 
A | 
 | 
Iodine | 
D | 
D | 
 | 
A | 
 | 
D | 
D | 
 | 
A | 
D | 
C | 
B | 
 | 
 | 
B | 
D | 
C | 
B | 
A | 
 | 
Iodine (In Alcohol) | 
B | 
  | 
  | 
B | 
 | 
  | 
B | 
 | 
C | 
  | 
D | 
C | 
 | 
 | 
D | 
 | 
B | 
B | 
A | 
 | 
Iodine Tincture | 
  | 
  | 
  | 
  | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
B | 
  | 
  | 
 | 
Iodoform | 
A | 
  | 
B | 
D | 
 | 
B | 
A | 
 | 
B | 
  | 
  | 
A | 
 | 
 | 
 | 
  | 
  | 
A | 
B | 
 | 
Iron Plating Sulfamete 140o F | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
A | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Iron: Ferrous Chloride Bath 190 F | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
A | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
C | 
D | 
A | 
 | 
Iron: Ferrous Sulfate Bath 150 F | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
A | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
D | 
A | 
 | 
Iron: Fluoborate Bath 145 F | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
D | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
D | 
A | 
 | 
Iron: Sulfate-Chloride Bath 160 F | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
A | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
D | 
A | 
 | 
Iron:Ferrous Am. Sulfate Bath 150 F | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
A | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
D | 
A | 
 | 
Iso-octane | 
A | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
  | 
A | 
A | 
 | 
A | 
A | 
A | 
A | 
A | 
 | 
Isopropanol | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
A | 
 | 
A | 
 | 
Isopropyl Acetate | 
C | 
A | 
 | 
B | 
 | 
C | 
B | 
 | 
  | 
  | 
D | 
B | 
 | 
 | 
 | 
  | 
B | 
D | 
A | 
 | 
Isopropyl Ether | 
A | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
  | 
  | 
C | 
A | 
 | 
 | 
A | 
  | 
B | 
B | 
A | 
 | 
Isotane | 
C | 
  | 
 | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
A | 
D | 
 | 
 | 
 | 
  | 
D | 
A | 
 | 
 | 
Jet Fuel (JP3, JP4, JP5) | 
A | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
  | 
A | 
C | 
 | 
 | 
 | 
A | 
A | 
C | 
A | 
 | 
Kerosene | 
A | 
A | 
B | 
B | 
 | 
A | 
A | 
 | 
A | 
C | 
A | 
A | 
 | 
A | 
D | 
A | 
C | 
A | 
A | 
 | 
Ketones | 
B | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
A | 
B | 
A | 
A | 
 | 
B | 
A | 
B | 
C | 
B | 
 | 
Kraft Liquors | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Lacquer Thinners | 
A | 
B | 
 | 
A | 
 | 
A | 
A | 
 | 
C | 
A | 
D | 
A | 
 | 
 | 
 | 
  | 
C | 
D | 
A | 
 | 
Lacquers | 
A | 
B | 
C | 
A | 
 | 
A | 
A | 
 | 
  | 
A | 
C | 
A | 
 | 
 | 
 | 
  | 
C | 
D | 
A | 
 | 
Lactic Acid | 
B | 
A | 
B | 
B | 
 | 
B | 
B | 
 | 
A | 
B | 
B | 
C | 
A | 
B | 
B | 
A | 
B | 
B | 
A | 
 | 
Lactic Acid, 80% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
R | 
 | 
 | 
Lanolin | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
B | 
  | 
 | 
B | 
  | 
  | 
 | 
Lard | 
A | 
A | 
C | 
A | 
 | 
A | 
A | 
 | 
A | 
C | 
A | 
A | 
 | 
A | 
 | 
  | 
A | 
A | 
A | 
 | 
Lard Oil | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Latex | 
A | 
  | 
 | 
A | 
 | 
A | 
A | 
 | 
  | 
B | 
B | 
A | 
 | 
 | 
B | 
  | 
A | 
  | 
A | 
 | 
Lauric Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Lauryl Chloride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Lead Acetate | 
D | 
A | 
C | 
B | 
 | 
B | 
B | 
 | 
A | 
A | 
B | 
A | 
A | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Lead Chloride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Lead Fluoborate | 
 | 
  | 
A | 
A | 
 | 
 | 
C | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Lead Fluoborate Plating | 
  | 
  | 
  | 
 | 
 | 
  | 
C | 
 | 
D | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Lead Nitrate | 
D | 
A | 
 | 
B | 
 | 
B | 
B | 
 | 
  | 
B | 
  | 
  | 
 | 
 | 
 | 
A | 
A | 
A | 
A | 
 | 
Lead Sulfamate | 
C | 
  | 
 | 
 | 
 | 
C | 
C | 
 | 
  | 
  | 
A | 
B | 
 | 
 | 
 | 
  | 
A | 
B | 
B | 
 | 
Lemon Juice | 
  | 
 | 
 | 
 | 
 | 
  | 
  | 
 | 
 | 
  | 
A | 
C | 
 | 
A | 
  | 
 | 
C | 
  | 
  | 
 | 
Ligroin | 
D | 
  | 
 | 
 | 
 | 
  | 
A | 
 | 
  | 
  | 
B | 
D | 
 | 
 | 
 | 
  | 
C | 
  | 
A | 
 | 
Lime (CaO) | 
B | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
A | 
A | 
C | 
A | 
A | 
 | 
 | 
  | 
  | 
B | 
A | 
 | 
Limonene | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Linoleic Acid | 
A | 
A | 
 | 
 | 
 | 
B | 
A | 
 | 
  | 
A | 
B | 
  | 
 | 
 | 
 | 
  | 
B | 
A | 
A | 
 | 
Linoleic Oil | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Linseed Oil | 
A | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
C | 
A | 
A | 
 | 
 | 
  | 
 | 
A | 
A | 
  | 
 | 
Lithium Bromide | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
 | 
Lithium Chloride | 
D | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
 | 
  | 
A | 
D | 
A | 
 | 
Lithium Hydroxide | 
D | 
B | 
 | 
B | 
 | 
B | 
B | 
 | 
  | 
  | 
  | 
  | 
 | 
 | 
 | 
  | 
  | 
  | 
A | 
 | 
Lithium Sulfate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Lubricants | 
A | 
A | 
 | 
A | 
 | 
A | 
A | 
 | 
A | 
B | 
A | 
A | 
 | 
B | 
 | 
A | 
A | 
B | 
A | 
 | 
Lye: Ca(OH)2 Calcium Hydroxide | 
C | 
A | 
A | 
C | 
 | 
B | 
B | 
 | 
A | 
  | 
D | 
A | 
 | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Lye: KOH Potassium Hydroxide | 
D | 
D | 
D | 
B | 
 | 
B | 
A | 
 | 
D | 
A | 
A | 
C | 
 | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Lye: NaOH Sodium Hydroxide | 
D | 
D | 
A | 
 | 
 | 
B | 
B | 
 | 
B | 
C | 
C | 
A | 
 | 
C | 
 | 
A | 
A | 
A | 
 | 
 | 
Magnesium Bisulfate | 
D | 
  | 
A | 
A | 
 | 
A | 
B | 
 | 
  | 
  | 
  | 
A | 
 | 
 | 
 | 
  | 
A | 
B | 
A | 
 | 
Magnesium Carbonate | 
A | 
  | 
 | 
 | 
 | 
B | 
B | 
 | 
A | 
B | 
A | 
A | 
 | 
A | 
B | 
  | 
A | 
B | 
A | 
 | 
Magnesium Chloride | 
D | 
C | 
C | 
A | 
 | 
D | 
D | 
 | 
A | 
B | 
B | 
A | 
 | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Magnesium Citrate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Magnesium Fluoride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Magnesium Hydroxide | 
C | 
C | 
B | 
A | 
 | 
B | 
A | 
 | 
A | 
B | 
A | 
B | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Magnesium Nitrate | 
B | 
  | 
A | 
A | 
 | 
B | 
B | 
 | 
A | 
B | 
A | 
A | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Magnesium Oxide | 
B | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
 | 
  | 
  | 
A | 
A | 
 | 
Magnesium Sulfate (Epsom Salts) | 
B | 
B | 
B | 
B | 
 | 
B | 
B | 
 | 
A | 
B | 
A | 
A | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Maleic Acid | 
B | 
A | 
B | 
B | 
 | 
A | 
B | 
 | 
A | 
A | 
C | 
A | 
A | 
B | 
 | 
B | 
B | 
A | 
A | 
 | 
Maleic Anhydride | 
A | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
D | 
  | 
 | 
 | 
 | 
  | 
D | 
  | 
A | 
 | 
Malic Acid | 
B | 
B | 
D | 
B | 
 | 
A | 
A | 
 | 
A | 
  | 
A | 
A | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Manganate, Potassium (K) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Manganese Chloride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Manganese Sulfate | 
B | 
C | 
A | 
A | 
 | 
B | 
B | 
 | 
A | 
B | 
A | 
A | 
 | 
 | 
 | 
A | 
  | 
C | 
A | 
 | 
Mash | 
A | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
  | 
  | 
  | 
 | 
 | 
Mayonnaise | 
B | 
  | 
D | 
A | 
 | 
B | 
A | 
 | 
  | 
B | 
A | 
A | 
 | 
 | 
 | 
  | 
  | 
D | 
A | 
 | 
Meat juices | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Magnesium Oxide | 
  | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
  | 
 | 
  | 
  | 
  | 
 | 
Melamine | 
  | 
D | 
 | 
 | 
 | 
D | 
D | 
 | 
  | 
  | 
C | 
A | 
 | 
 | 
 | 
  | 
A | 
D | 
A | 
 | 
Mercuric Chloride (Dilute Solution) | 
D | 
D | 
D | 
C | 
 | 
D | 
D | 
 | 
A | 
B | 
B | 
D | 
A | 
 | 
B | 
A | 
B | 
A | 
A | 
 | 
Mercuric Cyanide | 
D | 
  | 
C | 
A | 
 | 
C | 
C | 
 | 
A | 
B | 
A | 
A | 
 | 
 | 
B | 
A | 
B | 
A | 
B | 
 | 
Mercuric Sulfate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
R | 
 | 
 | 
Mercurous Nitrate | 
D | 
C | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
C | 
  | 
  | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Mercury | 
B | 
D | 
A | 
A | 
 | 
A | 
A | 
 | 
B | 
B | 
A | 
A | 
A | 
 | 
B | 
  | 
B | 
A | 
A | 
 | 
Metaphosphate | 
 | 
  | 
  | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
  | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Methane | 
A | 
B | 
 | 
A | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Methanol, <10% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Methaylamine | 
A | 
  | 
B | 
 | 
 | 
  | 
A | 
 | 
  | 
  | 
D | 
  | 
 | 
 | 
  | 
 | 
  | 
  | 
  | 
 | 
Methoxyethyl Oleate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
  | 
 | 
 | 
Methyl Acetate | 
A | 
A | 
B | 
A | 
 | 
A | 
B | 
 | 
  | 
D | 
A | 
A | 
 | 
D | 
 | 
  | 
D | 
D | 
A | 
 | 
Methyl Acetone | 
A | 
A | 
A | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
  | 
  | 
D | 
A | 
 | 
Methyl Acrylate | 
  | 
  | 
 | 
 | 
 | 
A | 
  | 
 | 
  | 
  | 
B | 
  | 
 | 
 | 
 | 
A | 
D | 
  | 
 | 
 | 
Methyl Bromide | 
D | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
C | 
C | 
B | 
 | 
 | 
D | 
  | 
C | 
D | 
A | 
 | 
Methyl Butyl Ketone | 
A | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
D | 
D | 
 | 
 | 
 | 
  | 
D | 
A | 
 | 
 | 
Methyl Cellosolve | 
B | 
A | 
 | 
 | 
 | 
B | 
B | 
 | 
  | 
  | 
C | 
C | 
 | 
 | 
 | 
  | 
B | 
D | 
A | 
 | 
Methyl Chloride | 
D | 
A | 
 | 
B | 
 | 
C | 
A | 
 | 
A | 
D | 
B | 
B | 
 | 
 | 
D | 
B | 
D | 
D | 
A | 
 | 
Methyl Dichloride | 
  | 
  | 
 | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
A | 
C | 
 | 
 | 
 | 
  | 
C | 
A | 
 | 
 | 
Methyl Ethyl Ketone | 
B | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
D | 
C | 
A | 
A | 
C | 
B | 
A | 
B | 
D | 
A | 
 | 
Methyl Formate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Methyl Isobutyl Ketone | 
B | 
A | 
 | 
A | 
 | 
B | 
B | 
 | 
A | 
D | 
B | 
B | 
 | 
D | 
 | 
A | 
C | 
D | 
A | 
 | 
Methyl Isopropyl Ketone | 
A | 
A | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
B | 
A | 
 | 
 | 
 | 
  | 
  | 
D | 
A | 
 | 
Methyl Methacrylate | 
  | 
  | 
 | 
 | 
 | 
B | 
B | 
 | 
  | 
  | 
C | 
  | 
 | 
 | 
 | 
A | 
D | 
A | 
 | 
 | 
Methyl Propyl Ketone | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
D | 
 | 
 | 
C | 
 | 
 | 
 | 
Methyl Salicylate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
R | 
 | 
 | 
Methyl Sulfate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
R | 
 | 
 | 
Methyl Sulfuric Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Methyl tert-Butyl Ether (MTBE) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Methylamine | 
A | 
C | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
D | 
D | 
  | 
 | 
 | 
 | 
  | 
A | 
D | 
A | 
 | 
Methylene Bromide | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Methylene Chloride | 
C | 
A | 
B | 
B | 
 | 
B | 
B | 
 | 
B | 
D | 
B | 
C | 
A | 
D | 
B | 
A | 
B | 
D | 
A | 
 | 
Methylene Chlorobromide | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Methylene Iodine | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Methylpyrrolidinone | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
 | 
 | 
Milk | 
A | 
C | 
C | 
A | 
 | 
A | 
A | 
 | 
A | 
B | 
A | 
A | 
A | 
A | 
B | 
  | 
A | 
A | 
A | 
 | 
Mineral Oil | 
A | 
  | 
B | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
A | 
  | 
A | 
C | 
A | 
  | 
 | 
Mineral Spirits | 
A | 
A | 
 | 
B | 
 | 
A | 
A | 
 | 
B | 
D | 
A | 
A | 
 | 
 | 
 | 
A | 
B | 
A | 
A | 
 | 
Molasses | 
A | 
B | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
B | 
A | 
A | 
A | 
 | 
B | 
  | 
B | 
B | 
A | 
 | 
Monochloroacetic acid | 
D | 
B | 
 | 
A | 
 | 
A | 
A | 
 | 
A | 
  | 
D | 
D | 
 | 
 | 
 | 
  | 
  | 
  | 
A | 
 | 
Monochlorobenzene | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
C | 
 | 
 | 
D | 
 | 
 | 
 | 
Monoethanolamine | 
B | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
B | 
D | 
D | 
A | 
 | 
 | 
 | 
A | 
B | 
B | 
A | 
 | 
Morpholine | 
A | 
A | 
 | 
A | 
 | 
  | 
A | 
 | 
  | 
C | 
  | 
A | 
 | 
 | 
 | 
C | 
B | 
  | 
A | 
 | 
Motor oil | 
A | 
A | 
A | 
 | 
 | 
A | 
A | 
 | 
A | 
C | 
B | 
A | 
 | 
B | 
 | 
A | 
A | 
B | 
A | 
 | 
Muriatic Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Mustard | 
B | 
A | 
B | 
A | 
 | 
A | 
A | 
 | 
A | 
B | 
C | 
A | 
 | 
 | 
 | 
  | 
A | 
B | 
A | 
 | 
Naphtha | 
A | 
A | 
B | 
B | 
 | 
A | 
A | 
 | 
B | 
B | 
A | 
A | 
B | 
 | 
D | 
A | 
B | 
C | 
B | 
 | 
Naphthalene | 
B | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
D | 
A | 
A | 
B | 
 | 
D | 
A | 
B | 
D | 
A | 
 | 
Natural Gas | 
A | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
B | 
B | 
A | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Nickel Acetate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Nickel Chloride | 
D | 
B | 
A | 
B | 
 | 
C | 
C | 
 | 
A | 
A | 
A | 
C | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Nickel Nitrate | 
D | 
  | 
A | 
B | 
 | 
B | 
B | 
 | 
  | 
A | 
  | 
A | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Nickel salts | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Nickel Sulfate | 
D | 
C | 
C | 
B | 
 | 
B | 
B | 
 | 
B | 
B | 
A | 
A | 
 | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Nickel: Electroless 200 F | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
D | 
D | 
A | 
 | 
Nickel: Fluoborate 100-170 F | 
  | 
  | 
  | 
A | 
 | 
  | 
C | 
 | 
D | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
D | 
A | 
 | 
Nickel: High Chloride 130-160 F | 
  | 
  | 
  | 
A | 
 | 
  | 
C | 
 | 
A | 
  | 
  | 
A | 
 | 
 | 
  | 
 | 
A | 
D | 
A | 
 | 
Nickel: Sulfamate 100-140 F | 
 | 
 | 
 | 
A | 
 | 
 | 
C | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Nickel: Watts Type 115-160 F | 
  | 
  | 
  | 
A | 
 | 
  | 
C | 
 | 
A | 
  | 
  | 
A | 
 | 
 | 
  | 
 | 
A | 
D | 
A | 
 | 
Nicotine | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Nicotine Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Nitric Acid (10% Solution) | 
D | 
  | 
C | 
 | 
 | 
A | 
A | 
 | 
A | 
C | 
D | 
D | 
C | 
 | 
B | 
B | 
C | 
A | 
A | 
 | 
Nitric Acid (20% Solution) | 
D | 
D | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
D | 
D | 
D | 
A | 
 | 
B | 
C | 
A | 
A | 
A | 
 | 
Nitric Acid (50% Solution) | 
D | 
D | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
D | 
D | 
D | 
A | 
 | 
C | 
C | 
C | 
B | 
A | 
 | 
Nitric Acid (Concentrated Solution) | 
C | 
D | 
A | 
B | 
 | 
C | 
B | 
 | 
A | 
D | 
D | 
D | 
 | 
 | 
D | 
C | 
D | 
D | 
A | 
 | 
Nitric acid (fuming) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Nitrobenzene | 
B | 
B | 
B | 
D | 
 | 
B | 
B | 
 | 
A | 
D | 
C | 
C | 
 | 
 | 
D | 
A | 
C | 
D | 
A | 
 | 
Nitroglycerine | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Nitroglycol | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Nitromethane | 
A | 
A | 
 | 
A | 
 | 
A | 
A | 
 | 
  | 
D | 
A | 
B | 
 | 
 | 
 | 
A | 
B | 
B | 
A | 
 | 
Nitrous Acid | 
D | 
D | 
 | 
D | 
 | 
B | 
B | 
 | 
  | 
D | 
  | 
  | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Nitrous Oxide | 
B | 
B | 
 | 
B | 
 | 
B | 
B | 
 | 
  | 
  | 
  | 
C | 
 | 
 | 
 | 
  | 
D | 
A | 
A | 
 | 
Ocenol | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Octanol (1) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Oils: Aniline | 
D | 
D | 
 | 
 | 
 | 
A | 
A | 
 | 
D | 
D | 
D | 
A | 
 | 
 | 
 | 
  | 
A | 
D | 
 | 
 | 
Oils: Anise | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
D | 
  | 
 | 
 | 
 | 
 | 
  | 
  | 
  | 
 | 
Oils: Bay | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
D | 
  | 
 | 
 | 
 | 
 | 
  | 
  | 
  | 
 | 
Oils: Bone | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
D | 
  | 
 | 
 | 
 | 
 | 
A | 
  | 
A | 
 | 
Oils: Castor | 
A | 
A | 
A | 
 | 
 | 
A | 
A | 
 | 
A | 
A | 
A | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Oils: Cinnamon | 
 | 
 | 
 | 
 | 
 | 
A | 
A | 
 | 
 | 
 | 
D | 
  | 
 | 
 | 
 | 
 | 
D | 
D | 
A | 
 | 
Oils: Citric | 
A | 
B | 
 | 
A | 
 | 
A | 
A | 
 | 
 | 
D | 
A | 
A | 
 | 
 | 
 | 
 | 
A | 
B | 
A | 
 | 
Oils: Clove | 
B | 
 | 
 | 
A | 
 | 
A | 
A | 
 | 
 | 
 | 
 | 
  | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
Oils: Coconut | 
A | 
 | 
 | 
A | 
 | 
A | 
A | 
 | 
 | 
A | 
A | 
 | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Oils: Cod Liver | 
 | 
 | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Oils: Corn | 
A | 
 | 
 | 
A | 
 | 
A | 
A | 
 | 
 | 
B | 
A | 
A | 
 | 
 | 
 | 
 | 
A | 
B | 
A | 
 | 
Oils: Cottonseed | 
A | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
A | 
A | 
B | 
 | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Oils: Creosote | 
B | 
A | 
 | 
B | 
 | 
B | 
B | 
 | 
A | 
 | 
D | 
D | 
 | 
 | 
 | 
 | 
C | 
C | 
A | 
 | 
Oils: Diesel Fuel (20, 30, 40, 50) | 
A | 
A | 
 | 
B | 
 | 
A | 
A | 
 | 
B | 
  | 
D | 
A | 
 | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Oils: Essential | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
 | 
D | 
 | 
 | 
 | 
Oils: Fuel (1, 2, 3, 5A, 5B, 6) | 
C | 
B | 
 | 
A | 
 | 
A | 
A | 
 | 
B | 
D | 
D | 
A | 
 | 
 | 
 | 
A | 
B | 
A | 
A | 
 | 
Oils: Ginger | 
 | 
 | 
 | 
 | 
 | 
D | 
D | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
Oils: Hydraulic Oil (Petro) | 
A | 
B | 
 | 
A | 
 | 
A | 
A | 
 | 
 | 
 | 
B | 
A | 
 | 
 | 
 | 
D | 
D | 
A | 
A | 
 | 
Oils: Hydraulic Oil (Synthetic) | 
A | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
  | 
A | 
 | 
 | 
 | 
  | 
D | 
A | 
A | 
 | 
Oils: Lemon | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
 | 
 | 
C | 
D | 
  | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
Oils: Linseed | 
B | 
A | 
A | 
B | 
 | 
A | 
A | 
 | 
A | 
 | 
A | 
A | 
 | 
 | 
 | 
B | 
A | 
A | 
A | 
 | 
Oils: Mineral | 
A | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
A | 
A | 
A | 
 | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Oils: Olive | 
A | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
A | 
A | 
A | 
 | 
 | 
 | 
 | 
A | 
C | 
A | 
 | 
Oils: Orange | 
A | 
 | 
 | 
A | 
 | 
A | 
A | 
 | 
A | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
A | 
C | 
 | 
 | 
Oils: Palm | 
 | 
 | 
 | 
 | 
 | 
A | 
A | 
 | 
A | 
A | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
A | 
 | 
Oils: Peanut | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
 | 
A | 
 | 
A | 
A | 
 | 
A | 
 | 
 | 
B | 
A | 
A | 
 | 
Oils: Peppermint | 
D | 
 | 
 | 
 | 
 | 
A | 
A | 
 | 
 | 
D | 
D | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
A | 
 | 
Oils: Pine | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
 | 
A | 
D | 
A | 
A | 
 | 
 | 
 | 
 | 
B | 
D | 
A | 
 | 
Oils: Rapeseed | 
 | 
 | 
 | 
 | 
 | 
A | 
A | 
 | 
A | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
A | 
 | 
Oils: Rosin | 
 | 
A | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
C | 
A | 
 | 
Oils: Sesame Seed | 
 | 
 | 
 | 
 | 
 | 
A | 
A | 
 | 
A | 
A | 
D | 
 | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Oils: Silicone | 
A | 
A | 
 | 
A | 
 | 
A | 
A | 
 | 
  | 
A | 
A | 
A | 
 | 
 | 
 | 
A | 
A | 
A | 
A | 
 | 
Oils: Soybean | 
A | 
A | 
 | 
A | 
 | 
A | 
A | 
 | 
A | 
A | 
A | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Oils: Sperm (whale) | 
 | 
 | 
 | 
 | 
 | 
A | 
A | 
 | 
A | 
A | 
D | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
Oils: Tanning | 
 | 
 | 
 | 
 | 
 | 
A | 
A | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Oils: Transformer | 
A | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
 | 
 | 
 | 
B | 
B | 
A | 
 | 
Oils: Turbine | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
 | 
A | 
 | 
A | 
A | 
 | 
 | 
 | 
 | 
B | 
A | 
A | 
 | 
Oils: Vegetable | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
Oleic Acid | 
A | 
B | 
B | 
A | 
 | 
A | 
A | 
 | 
B | 
C | 
B | 
A | 
 | 
 | 
D | 
A | 
B | 
C | 
A | 
 | 
Oleic Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Oleum 25% | 
B | 
D | 
 | 
A | 
 | 
B | 
B | 
 | 
D | 
  | 
D | 
D | 
 | 
 | 
 | 
A | 
D | 
D | 
A | 
 | 
Oleum 100% | 
B | 
D | 
 | 
D | 
 | 
A | 
A | 
 | 
D | 
D | 
D | 
D | 
 | 
 | 
 | 
A | 
D | 
D | 
A | 
 | 
Olive Oil | 
A | 
 | 
B | 
 | 
 | 
A | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Orange | 
  | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
A | 
  | 
 | 
A | 
  | 
A | 
 | 
Orange Oil | 
  | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
  | 
 | 
A | 
  | 
A | 
 | 
Oxalic Acid (cold) | 
B | 
C | 
B | 
B | 
 | 
B | 
B | 
 | 
B | 
A | 
B | 
C | 
A | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Oxygen | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Ozone | 
B | 
  | 
 | 
 | 
 | 
B | 
A | 
 | 
  | 
D | 
C | 
D | 
A | 
D | 
 | 
D | 
D | 
B | 
A | 
 | 
Paint Thinner | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
B | 
  | 
 | 
C | 
  | 
  | 
 | 
Palm Oil | 
A | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
A | 
  | 
 | 
A | 
A | 
  | 
 | 
Palmitic Acid | 
B | 
D | 
 | 
B | 
 | 
B | 
A | 
 | 
  | 
A | 
A | 
A | 
 | 
A | 
 | 
  | 
B | 
B | 
A | 
 | 
Paraffin | 
A | 
A | 
A | 
B | 
 | 
A | 
A | 
 | 
A | 
B | 
A | 
A | 
A | 
 | 
 | 
  | 
A | 
B | 
A | 
 | 
Pectin | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
A | 
  | 
 | 
B | 
  | 
  | 
 | 
Pentane | 
B | 
A | 
B | 
A | 
 | 
C | 
C | 
 | 
  | 
D | 
B | 
A | 
A | 
 | 
C | 
  | 
C | 
A | 
A | 
 | 
Peracetic Acid, 40% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Perchloric Acid | 
D | 
A | 
 | 
B | 
 | 
C | 
C | 
 | 
D | 
  | 
C | 
D | 
A | 
 | 
B | 
  | 
B | 
C | 
A | 
 | 
Perchloroethylene | 
C | 
A | 
A | 
B | 
 | 
B | 
A | 
 | 
A | 
D | 
B | 
C | 
 | 
 | 
 | 
A | 
D | 
C | 
A | 
 | 
Peroxyacetic Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
Peroxybenzoic Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
Perphosphate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Petrolatum | 
B | 
A | 
C | 
A | 
 | 
A | 
A | 
 | 
  | 
B | 
B | 
B | 
 | 
 | 
 | 
  | 
D | 
B | 
B | 
 | 
Petroleum | 
D | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
A | 
B | 
B | 
A | 
 | 
 | 
 | 
  | 
B | 
  | 
A | 
 | 
Petroleum Distillate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
 | 
C | 
 | 
 | 
 | 
Petroleum Jelly | 
  | 
  | 
  | 
  | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
A | 
  | 
 | 
B | 
  | 
  | 
 | 
Petroleum Liquifier | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Petroleum Oils (Sour) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Phenol (Carbolic Acid) | 
A | 
C | 
B | 
A | 
 | 
B | 
B | 
 | 
A | 
D | 
D | 
D | 
A | 
 | 
D | 
A | 
B | 
D | 
A | 
 | 
Phenol 10% | 
A | 
A | 
A | 
B | 
 | 
B | 
B | 
 | 
B | 
D | 
B | 
D | 
A | 
 | 
 | 
A | 
B | 
C | 
A | 
 | 
Phenol 50% | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
D | 
C | 
 | 
  | 
C | 
B | 
  | 
  | 
 | 
Phenylhydrazine | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
Phenylhydrazine Hydrochloride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Phosgene, Gas | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Phosgene, Liquid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Phosphoric Acid | 
 | 
B | 
A | 
A | 
 | 
 | 
C | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
 | 
C | 
A | 
B | 
A | 
 | 
Phosphoric Acid 40% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
A | 
 | 
A | 
 | 
A | 
 | 
Phosphoric Acid (crude) | 
C | 
D | 
D | 
 | 
 | 
D | 
C | 
 | 
C | 
C | 
D | 
C | 
 | 
 | 
D | 
A | 
B | 
B | 
A | 
 | 
Phosphoric Acid (molten) | 
C | 
  | 
 | 
 | 
 | 
  | 
C | 
 | 
D | 
D | 
D | 
  | 
 | 
 | 
 | 
D | 
D | 
D | 
 | 
 | 
Phosphoric Acid Anhydride | 
C | 
  | 
 | 
 | 
 | 
  | 
  | 
 | 
D | 
  | 
D | 
  | 
 | 
 | 
 | 
D | 
A | 
  | 
 | 
 | 
Phosphoric Acid 100% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
B | 
 | 
A | 
 | 
A | 
 | 
Phosphoric Anhydride (Dry or Moist) | 
  | 
D | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
  | 
  | 
 | 
 | 
  | 
 | 
  | 
D | 
A | 
 | 
Phosphoric Anhydride (Molten) | 
D | 
D | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
  | 
A | 
 | 
 | 
D | 
 | 
  | 
D | 
A | 
 | 
Phosphorous | 
B | 
C | 
  | 
A | 
 | 
A | 
A | 
 | 
 | 
 | 
B | 
  | 
 | 
 | 
 | 
 | 
A | 
C | 
A | 
 | 
Phosphorous chlorides | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Phosphorous pentoxide | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
Phosphorous Trichloride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Phosphorus Trichloride | 
D | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
A | 
D | 
D | 
  | 
 | 
 | 
 | 
A | 
  | 
D | 
 | 
 | 
Photographic (Developer) | 
C | 
A | 
A | 
B | 
 | 
C | 
A | 
 | 
A | 
B | 
C | 
  | 
 | 
 | 
B | 
 | 
A | 
A | 
A | 
 | 
Photographic Solutions | 
  | 
  | 
 | 
 | 
 | 
D | 
  | 
 | 
A | 
  | 
D | 
A | 
 | 
 | 
 | 
A | 
A | 
A | 
A | 
 | 
Phthalic Acid | 
B | 
A | 
 | 
B | 
 | 
B | 
A | 
 | 
A | 
B | 
C | 
B | 
A | 
 | 
 | 
  | 
A | 
  | 
A | 
 | 
Phthalic Anhydride | 
B | 
A | 
C | 
A | 
 | 
A | 
B | 
 | 
  | 
B | 
C | 
A | 
 | 
 | 
 | 
  | 
D | 
D | 
A | 
 | 
Picric Acid | 
C | 
C | 
D | 
B | 
 | 
B | 
B | 
 | 
A | 
A | 
A | 
B | 
A | 
 | 
A | 
A | 
B | 
D | 
A | 
 | 
Pine Oil | 
A | 
  | 
B | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
  | 
 | 
  | 
A | 
A | 
 | 
Polyphosphate | 
 | 
A | 
A | 
B | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Potash (Potassium Carbonate) | 
C | 
A | 
D | 
B | 
 | 
A | 
B | 
 | 
A | 
A | 
B | 
A | 
 | 
 | 
B | 
 | 
A | 
A | 
  | 
 | 
Potassium | 
 | 
A | 
B | 
B | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Potassium Acetate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
R | 
 | 
 | 
Potassium Alum | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
R | 
 | 
 | 
Potassium Amyl Xanthate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
R | 
 | 
 | 
Potassium Bicarbonate | 
D | 
  | 
 | 
 | 
 | 
B | 
B | 
 | 
A | 
B | 
C | 
A | 
 | 
 | 
B | 
A | 
A | 
C | 
A | 
 | 
Potassium Bichromate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Potassium Bisulfate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Potassium Borate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Potassium Bromate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Potassium Bromide | 
C | 
A | 
C | 
B | 
 | 
B | 
B | 
 | 
A | 
A | 
A | 
C | 
 | 
B | 
B | 
A | 
A | 
C | 
A | 
 | 
Potassium Carbonate | 
C | 
  | 
B | 
 | 
 | 
A | 
  | 
 | 
A | 
  | 
B | 
A | 
 | 
 | 
B | 
 | 
A | 
C | 
A | 
 | 
Potassium Chlorate | 
B | 
A | 
B | 
A | 
 | 
B | 
B | 
 | 
A | 
A | 
B | 
C | 
 | 
 | 
B | 
A | 
A | 
C | 
A | 
 | 
Potassium Chloride | 
C | 
C | 
B | 
 | 
 | 
B | 
A | 
 | 
A | 
B | 
A | 
B | 
 | 
 | 
B | 
A | 
A | 
C | 
A | 
 | 
Potassium Chromate | 
B | 
A | 
B | 
A | 
 | 
B | 
B | 
 | 
  | 
  | 
C | 
B | 
 | 
 | 
B | 
  | 
A | 
C | 
A | 
 | 
Potassium Cyanate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Potassium Cyanide Solutions | 
D | 
C | 
D | 
B | 
 | 
B | 
B | 
 | 
A | 
A | 
C | 
A | 
 | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Potassium Dichromate | 
B | 
  | 
C | 
 | 
 | 
B | 
B | 
 | 
A | 
B | 
B | 
D | 
 | 
 | 
B | 
A | 
A | 
D | 
A | 
 | 
Potassium Ethyl Xanthate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Potassium Ferricyanide | 
B | 
  | 
C | 
 | 
 | 
B | 
B | 
 | 
A | 
B | 
B | 
A | 
 | 
 | 
A | 
  | 
A | 
C | 
 | 
 | 
Potassium Fluoride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Potassium Hydroxide (Caustic Potash) | 
D | 
D | 
C | 
B | 
 | 
B | 
B | 
 | 
C | 
C | 
D | 
C | 
 | 
D | 
B | 
A | 
A | 
A | 
A | 
 | 
Potassium Hydroxide (dilute) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Potassium Hydroxide (50%) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Potassium Hydroxide 70% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Potassium Hypochlorite | 
D | 
  | 
 | 
 | 
 | 
C | 
B | 
 | 
A | 
  | 
  | 
B | 
 | 
 | 
 | 
A | 
  | 
C | 
 | 
 | 
Potassium Iodide | 
B | 
A | 
B | 
B | 
 | 
A | 
B | 
 | 
A | 
B | 
  | 
B | 
 | 
 | 
 | 
A | 
A | 
C | 
A | 
 | 
Potassium Nitrate | 
B | 
B | 
B | 
A | 
 | 
B | 
B | 
 | 
A | 
B | 
B | 
C | 
 | 
 | 
B | 
A | 
A | 
C | 
A | 
 | 
Potassium Oxalate | 
B | 
  | 
 | 
 | 
 | 
B | 
B | 
 | 
A | 
  | 
  | 
  | 
 | 
 | 
 | 
  | 
  | 
  | 
 | 
 | 
Potassium Perborate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Potassium Perchlorate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Potassium Permanganate | 
B | 
B | 
B | 
A | 
 | 
A | 
B | 
 | 
B | 
C | 
C | 
D | 
 | 
B | 
B | 
A | 
C | 
A | 
A | 
 | 
Potassium Permanganate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Potassium Permanganate, 10% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Potassium Permanganate, 25% | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Potassium Persulfate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Potassium Phosphate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Potassium Sulfate | 
C | 
C | 
B | 
B | 
 | 
B | 
B | 
 | 
A | 
B | 
B | 
C | 
 | 
 | 
B | 
A | 
A | 
C | 
A | 
 | 
Potassium Sulfide | 
C | 
A | 
B | 
 | 
 | 
B | 
B | 
 | 
A | 
B | 
  | 
A | 
 | 
 | 
 | 
A | 
A | 
C | 
A | 
 | 
Potassium Sulfite | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Potassium Thiocyanate | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
D | 
 | 
A | 
  | 
 | 
B | 
  | 
  | 
 | 
Potassium Tripolyphosphate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Propane | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Propane (liquefied) | 
A | 
A | 
B | 
A | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
A | 
C | 
C | 
A | 
 | 
Propanol | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Propyl | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Propylene | 
A | 
A | 
 | 
 | 
 | 
B | 
A | 
 | 
  | 
B | 
  | 
  | 
 | 
 | 
 | 
A | 
  | 
B | 
A | 
 | 
Propylene Glycol | 
B | 
  | 
B | 
B | 
 | 
B | 
B | 
 | 
A | 
B | 
B | 
B | 
 | 
B | 
B | 
A | 
A | 
C | 
A | 
 | 
Propylene Oxide | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Pyridine | 
B | 
B | 
A | 
B | 
 | 
B | 
A | 
 | 
B | 
  | 
C | 
C | 
B | 
 | 
B | 
A | 
A | 
D | 
A | 
 | 
Pyrogallic Acid | 
B | 
A | 
B | 
B | 
 | 
B | 
B | 
 | 
A | 
  | 
D | 
A | 
 | 
 | 
 | 
  | 
A | 
C | 
A | 
 | 
Rape Seed Oil | 
  | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
  | 
A | 
  | 
A | 
  | 
 | 
Rayon Coagulating Bath | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Refinery Crudes | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Resorcinol | 
  | 
A | 
 | 
 | 
 | 
  | 
  | 
 | 
  | 
A | 
  | 
D | 
 | 
 | 
 | 
  | 
A | 
C | 
A | 
 | 
Rhodium Plating 120F | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
D | 
D | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Rochelle Salt Bath 150F | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
D | 
A | 
 | 
Rosin | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
A | 
 | 
 | 
 | 
 | 
A | 
C | 
A | 
 | 
Rum | 
  | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
  | 
A | 
A | 
 | 
 | 
Rust Inhibitors | 
  | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
 | 
  | 
A | 
  | 
 | 
 | 
Salad Dressing | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
 | 
 | 
Salicyl aldehyde | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Salicylic Acid | 
B | 
A | 
 | 
A | 
 | 
B | 
B | 
 | 
A | 
A | 
D | 
A | 
 | 
C | 
 | 
  | 
A | 
B | 
A | 
 | 
Salt Brine (NaCl saturated) | 
B | 
A | 
 | 
A | 
 | 
B | 
A | 
 | 
A | 
  | 
  | 
A | 
 | 
 | 
 | 
A | 
A | 
A | 
A | 
 | 
Santicizer | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Sea Water | 
B | 
C | 
D | 
A | 
 | 
C | 
C | 
 | 
A | 
A | 
A | 
A | 
C | 
 | 
B | 
A | 
A | 
C | 
A | 
 | 
Selenic Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Sesame Seed Oil | 
A | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
  | 
 | 
  | 
A | 
  | 
 | 
Sewage | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Shellac (Bleached) | 
A | 
B | 
A | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
  | 
A | 
  | 
A | 
 | 
Shellac (Orange) | 
A | 
B | 
A | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
  | 
A | 
  | 
A | 
 | 
Silicic acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
C | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Silicone | 
B | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
D | 
A | 
A | 
C | 
 | 
 | 
A | 
A | 
C | 
A | 
 | 
Silver Bromide | 
D | 
  | 
 | 
A | 
 | 
C | 
C | 
 | 
  | 
  | 
C | 
  | 
 | 
 | 
 | 
  | 
  | 
  | 
A | 
 | 
Silver Chloride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Silver Nitrate | 
D | 
A | 
D | 
A | 
 | 
B | 
B | 
 | 
A | 
A | 
B | 
A | 
C | 
B | 
B | 
A | 
A | 
C | 
A | 
 | 
Silver Plating 80-120 F | 
 | 
  | 
  | 
A | 
 | 
 | 
A | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Silver Sulfate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Silver Cyanide | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Soap Solutions | 
C | 
B | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
A | 
A | 
A | 
 | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Sodium | 
 | 
A | 
  | 
  | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Sodium Acetate | 
B | 
B | 
C | 
B | 
 | 
B | 
B | 
 | 
A | 
B | 
B | 
B | 
 | 
B | 
B | 
A | 
A | 
C | 
A | 
 | 
Sodium Aluminate | 
C | 
  | 
C | 
 | 
 | 
A | 
A | 
 | 
B | 
  | 
B | 
A | 
 | 
 | 
 | 
A | 
  | 
C | 
A | 
 | 
Sodium Arsenate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Sodium Benzoate | 
A | 
A | 
 | 
A | 
 | 
  | 
  | 
 | 
A | 
A | 
  | 
B | 
 | 
A | 
 | 
  | 
A | 
C | 
A | 
 | 
Sodium Bicarbonate | 
D | 
C | 
B | 
B | 
 | 
A | 
A | 
 | 
A | 
A | 
A | 
A | 
 | 
B | 
B | 
A | 
A | 
C | 
A | 
 | 
Sodium Bichromate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Sodium Bisulfate | 
D | 
C | 
C | 
B | 
 | 
C | 
C | 
 | 
B | 
B | 
B | 
C | 
 | 
 | 
B | 
A | 
A | 
C | 
A | 
 | 
Sodium Bisulfite | 
C | 
A | 
A | 
B | 
 | 
B | 
B | 
 | 
A | 
B | 
B | 
B | 
 | 
B | 
B | 
A | 
B | 
B | 
A | 
 | 
Sodium Borate (Borax) | 
C | 
A | 
C | 
A | 
 | 
B | 
B | 
 | 
B | 
A | 
  | 
A | 
 | 
A | 
A | 
A | 
A | 
B | 
A | 
 | 
Sodium Bromide | 
D | 
A | 
 | 
 | 
 | 
C | 
C | 
 | 
A | 
B | 
A | 
B | 
 | 
B | 
 | 
  | 
B | 
B | 
A | 
 | 
Sodium Carbonate | 
C | 
B | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
A | 
A | 
B | 
C | 
B | 
B | 
A | 
A | 
B | 
A | 
 | 
Sodium Chlorate | 
C | 
C | 
C | 
B | 
 | 
A | 
B | 
 | 
A | 
A | 
B | 
A | 
 | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Sodium Chloride | 
C | 
B | 
B | 
A | 
 | 
B | 
B | 
 | 
A | 
A | 
A | 
A | 
 | 
B | 
B | 
A | 
A | 
A | 
A | 
 | 
Sodium Chlorite | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
R | 
 | 
 | 
Sodium Chromate | 
B | 
A | 
B | 
A | 
 | 
B | 
B | 
 | 
  | 
  | 
D | 
A | 
 | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Sodium Cyanide | 
D | 
C | 
B | 
A | 
 | 
A | 
B | 
 | 
A | 
A | 
B | 
V | 
 | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Sodium Dichromate 10% | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
C | 
 | 
C | 
  | 
D | 
B | 
C | 
  | 
 | 
Sodium Ferrocyanide | 
A | 
A | 
A | 
A | 
 | 
B | 
B | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
 | 
  | 
A | 
B | 
A | 
 | 
Sodium Fluoride | 
B | 
A | 
C | 
A | 
 | 
C | 
D | 
 | 
A | 
A | 
  | 
A | 
 | 
 | 
C | 
  | 
A | 
C | 
A | 
 | 
Sodium Formate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Sodium Hydrosulfite | 
A | 
  | 
 | 
A | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
A | 
 | 
 | 
 | 
A | 
  | 
C | 
A | 
 | 
Sodium Hydroxide | 
 | 
A | 
A | 
B | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
 | 
A | 
A | 
A | 
A | 
 | 
Sodium Hydroxide (20%) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
A | 
 | 
A | 
 | 
A | 
A | 
A | 
 | 
Sodium Hydroxide (50%) | 
D | 
D | 
  | 
 | 
 | 
A | 
B | 
 | 
A | 
C | 
D | 
C | 
A | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Sodium hydroxide (80%) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
A | 
 | 
B | 
 | 
A | 
 | 
A | 
 | 
Sodium Hypochlorite | 
D | 
C | 
C | 
B | 
 | 
 | 
C | 
 | 
A | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
B | 
B | 
A | 
 | 
Sodium Hyposulfate | 
D | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
  | 
  | 
 | 
 | 
 | 
  | 
  | 
  | 
A | 
 | 
Sodium Iodide | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
R | 
 | 
 | 
Sodium Metaphosphate | 
C | 
C | 
B | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
B | 
A | 
 | 
 | 
 | 
  | 
C | 
B | 
A | 
 | 
Sodium Metasilicate | 
B | 
C | 
B | 
B | 
 | 
A | 
B | 
 | 
  | 
  | 
D | 
A | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Sodium Nitrate | 
B | 
C | 
B | 
B | 
 | 
B | 
B | 
 | 
A | 
  | 
B | 
B | 
 | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Sodium Nitrite | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Sodium Perborate | 
B | 
B | 
B | 
B | 
 | 
B | 
B | 
 | 
  | 
  | 
B | 
B | 
 | 
 | 
 | 
  | 
A | 
B | 
A | 
 | 
Sodium Peroxide | 
C | 
C | 
C | 
 | 
 | 
A | 
A | 
 | 
  | 
A | 
D | 
C | 
B | 
 | 
 | 
  | 
B | 
B | 
A | 
 | 
Sodium Polyphosphate (Mono, Di, Tribasic) | 
D | 
D | 
 | 
 | 
 | 
B | 
B | 
 | 
A | 
  | 
B | 
A | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Sodium Silicate | 
B | 
D | 
B | 
B | 
 | 
A | 
B | 
 | 
A | 
A | 
C | 
A | 
B | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Sodium Sulfate | 
B | 
B | 
B | 
B | 
 | 
B | 
B | 
 | 
A | 
  | 
B | 
A | 
 | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Sodium Sulfide | 
D | 
D | 
B | 
B | 
 | 
B | 
B | 
 | 
A | 
  | 
B | 
B | 
 | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Sodium Sulfite | 
C | 
D | 
 | 
 | 
 | 
B | 
B | 
 | 
A | 
  | 
  | 
D | 
 | 
 | 
A | 
  | 
A | 
B | 
A | 
 | 
Sodium sulphide | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Sodium Tetraborate | 
C | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
B | 
A | 
 | 
C | 
 | 
  | 
A | 
A | 
A | 
 | 
Sodium Thiosulphate ("Hypo") | 
A | 
C | 
B | 
A | 
 | 
A | 
B | 
 | 
A | 
 | 
C | 
A | 
 | 
B | 
 | 
A | 
A | 
A | 
A | 
 | 
Sodium Tripolyphosphate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Sorghum | 
  | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
  | 
  | 
  | 
 | 
 | 
Sour Crude Oil | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Soy Sauce | 
A | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
  | 
  | 
  | 
 | 
 | 
Soybean Oil | 
A | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
  | 
 | 
A | 
B | 
  | 
 | 
Sperm Oil | 
  | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
  | 
 | 
  | 
A | 
  | 
 | 
Stannic Chloride | 
D | 
A | 
C | 
B | 
 | 
D | 
D | 
 | 
A | 
D | 
C | 
B | 
B | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Stannic Fluoborate | 
  | 
  | 
 | 
 | 
 | 
  | 
A | 
 | 
  | 
  | 
C | 
  | 
 | 
 | 
 | 
  | 
  | 
  | 
  | 
 | 
Stannous Chloride | 
D | 
  | 
B | 
B | 
 | 
C | 
B | 
 | 
A | 
  | 
  | 
C | 
 | 
 | 
A | 
A | 
A | 
B | 
A | 
 | 
Stannous Sulfate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Starch | 
A | 
A | 
A | 
 | 
 | 
A | 
A | 
 | 
  | 
A | 
A | 
A | 
B | 
 | 
B | 
  | 
A | 
B | 
A | 
 | 
Stearic Acid | 
B | 
B | 
C | 
B | 
 | 
B | 
A | 
 | 
A | 
  | 
A | 
A | 
 | 
B | 
B | 
  | 
B | 
B | 
A | 
 | 
Stoddard Solvent | 
A | 
A | 
B | 
A | 
 | 
A | 
A | 
 | 
A | 
B | 
A | 
A | 
 | 
B | 
D | 
A | 
C | 
A | 
A | 
 | 
Styrene | 
A | 
A | 
A | 
D | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
  | 
  | 
D | 
A | 
 | 
Succinic Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
Sugar (Liquids) | 
A | 
A | 
B | 
A | 
 | 
A | 
A | 
 | 
 | 
A | 
A | 
A | 
B | 
B | 
 | 
 | 
A | 
A | 
A | 
 | 
Sulfamate 100-140F | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
B | 
A | 
 | 
Sulfamic Acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Sulfate (Liquors) | 
C | 
A | 
 | 
B | 
 | 
B | 
B | 
 | 
  | 
  | 
D | 
B | 
 | 
 | 
 | 
  | 
A | 
B | 
A | 
 | 
Sulfate-Chloride Bath 160 F | 
  | 
  | 
  | 
D | 
 | 
  | 
D | 
 | 
A | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
D | 
A | 
 | 
Sulfite Liquor | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Sulfolane | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
Sulfur | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Sulfur Chloride | 
D | 
D | 
 | 
A | 
 | 
D | 
D | 
 | 
D | 
  | 
D | 
A | 
 | 
 | 
A | 
  | 
C | 
C | 
A | 
 | 
Sulfur Dioxide | 
B | 
C | 
 | 
C | 
 | 
C | 
A | 
 | 
A | 
D | 
B | 
B | 
 | 
 | 
C | 
A | 
B | 
C | 
A | 
 | 
Sulfur Hexafluoride | 
  | 
  | 
 | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
 | 
 | 
  | 
  | 
B | 
 | 
 | 
Sulfur Trioxide | 
A | 
D | 
 | 
 | 
 | 
A | 
C | 
 | 
D | 
  | 
D | 
D | 
 | 
 | 
C | 
D | 
C | 
B | 
A | 
 | 
Sulfuric Acid | 
 | 
C | 
A | 
B | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
D | 
B | 
D | 
A | 
 | 
Sulfuric Acid (10%-75%) | 
D | 
D | 
A | 
B | 
 | 
D | 
D | 
 | 
C | 
B | 
D | 
D | 
 | 
 | 
C | 
A | 
A | 
A | 
A | 
 | 
Sulfuric Acid (75-100%) | 
D | 
D | 
 | 
 | 
 | 
C | 
D | 
 | 
D | 
  | 
  | 
D | 
C | 
 | 
A | 
A | 
A | 
D | 
A | 
 | 
Sulfuric Acid (cold concentrated) | 
B | 
  | 
 | 
 | 
 | 
C | 
B | 
 | 
D | 
  | 
  | 
D | 
 | 
 | 
 | 
A | 
A | 
D | 
 | 
 | 
Sulfuric Acid (hot concentrated) | 
D | 
  | 
 | 
 | 
 | 
D | 
C | 
 | 
D | 
  | 
  | 
D | 
 | 
 | 
 | 
D | 
C | 
D | 
 | 
 | 
Sulfurous Acid | 
B | 
A | 
D | 
B | 
 | 
B | 
B | 
 | 
A | 
  | 
C | 
D | 
 | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Sulfuryl Chloride | 
  | 
  | 
 | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
 | 
  | 
  | 
A | 
A | 
 | 
Sulphamic acid | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
  | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Sulphates (Na, K, Mg, Ca) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Sulphites | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Sulphur | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Sulphur chlorides | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
  | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Sulphur dioxide (96%) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Sulphur dioxide, dry | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Sulphur dioxide, wet | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Sulphur trioxide | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Syrup | 
A | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
B | 
A | 
A | 
 | 
 | 
  | 
 | 
A | 
A | 
  | 
 | 
Tallow | 
A | 
A | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
A | 
A | 
A | 
B | 
 | 
C | 
  | 
A | 
  | 
A | 
 | 
Tannic Acid | 
C | 
B | 
B | 
B | 
 | 
B | 
A | 
 | 
A | 
  | 
B | 
C | 
B | 
B | 
B | 
A | 
A | 
B | 
A | 
 | 
Tanning Liquors | 
B | 
A | 
  | 
B | 
 | 
A | 
A | 
 | 
A | 
  | 
B | 
A | 
 | 
 | 
  | 
 | 
A | 
B | 
A | 
 | 
Tartaric Acid | 
B | 
C | 
C | 
B | 
 | 
B | 
C | 
 | 
A | 
A | 
B | 
A | 
B | 
B | 
B | 
A | 
A | 
A | 
A | 
 | 
Tea | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
B | 
  | 
 | 
B | 
  | 
  | 
 | 
Terpenes | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Terpineol | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Tetrachlorethane | 
C | 
A | 
  | 
A | 
 | 
B | 
A | 
 | 
A | 
  | 
A | 
C | 
 | 
 | 
  | 
 | 
C | 
C | 
A | 
 | 
Tetrachloroethylene | 
  | 
A | 
 | 
 | 
 | 
  | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
  | 
D | 
D | 
A | 
 | 
Tetrahydrofuran | 
D | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
B | 
  | 
A | 
A | 
A | 
B | 
B | 
A | 
B | 
D | 
A | 
 | 
Tetralin | 
  | 
  | 
  | 
  | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
B | 
  | 
 | 
C | 
  | 
  | 
 | 
Thionyl Chloride | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
  | 
B | 
  | 
 | 
Thiophenol | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
 | 
 | 
Thread Cutting Oil | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Tin Salts | 
D | 
  | 
 | 
C | 
 | 
  | 
D | 
 | 
A | 
  | 
  | 
  | 
 | 
 | 
 | 
  | 
A | 
A | 
A | 
 | 
Tine-Lead Plating 100F | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Tin-Flouborate Plating 100 F | 
  | 
  | 
  | 
 | 
 | 
  | 
C | 
 | 
D | 
  | 
  | 
D | 
 | 
 | 
  | 
 | 
A | 
A | 
A | 
 | 
Tin-Fluoborate Plating 100F | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Toluene, Toluol | 
A | 
A | 
A | 
A | 
 | 
A | 
A | 
 | 
A | 
D | 
C | 
A | 
A | 
C | 
B | 
A | 
B | 
D | 
A | 
 | 
Tomato Juice | 
A | 
  | 
C | 
 | 
 | 
A | 
A | 
 | 
  | 
B | 
B | 
A | 
 | 
 | 
 | 
A | 
A | 
A | 
A | 
 | 
Transformer Oil | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Tributyl Citrate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Tributyl Phosphate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Trichloroethylene (1,1,1-) | 
B | 
A | 
B | 
 | 
 | 
A | 
A | 
 | 
A | 
D | 
C | 
C | 
B | 
B | 
D | 
A | 
D | 
D | 
A | 
 | 
Trichloride | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Trichloroacetic Acid | 
D | 
A | 
A | 
B | 
 | 
D | 
C | 
 | 
D | 
  | 
  | 
C | 
A | 
 | 
A | 
A | 
A | 
B | 
A | 
 | 
Trichloroethane | 
D | 
A | 
 | 
A | 
 | 
B | 
B | 
 | 
A | 
  | 
A | 
C | 
A | 
 | 
 | 
C | 
B | 
C | 
A | 
 | 
Trichloropropane | 
D | 
  | 
 | 
A | 
 | 
A | 
A | 
 | 
  | 
D | 
A | 
  | 
 | 
 | 
 | 
  | 
  | 
  | 
A | 
 | 
Trichlorotrifluoroethane | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
 | 
 | 
Tricresylphosphate | 
D | 
A | 
D | 
A | 
 | 
B | 
B | 
 | 
B | 
B | 
C | 
A | 
 | 
 | 
 | 
  | 
A | 
D | 
A | 
 | 
Triethanolamine | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
Triethyl Phosphate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
C | 
 | 
 | 
 | 
 | 
Triethylamine | 
  | 
A | 
B | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
D | 
A | 
 | 
 | 
 | 
  | 
C | 
B | 
A | 
 | 
Triethylamine | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
-- | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Triethylene Glycol | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
B | 
  | 
 | 
B | 
  | 
  | 
 | 
Trihchlorethane | 
C | 
  | 
  | 
 | 
 | 
C | 
A | 
 | 
A | 
  | 
A | 
  | 
 | 
 | 
  | 
 | 
  | 
  | 
A | 
 | 
Trilones | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Trimethyl Propane | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Trimethylamine | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Triosodium Phosphate | 
D | 
A | 
  | 
A | 
 | 
B | 
B | 
 | 
  | 
B | 
A | 
B | 
 | 
B | 
  | 
A | 
B | 
B | 
A | 
 | 
Turbine Oil | 
A | 
  | 
  | 
 | 
 | 
A | 
A | 
 | 
  | 
C | 
A | 
  | 
 | 
 | 
  | 
 | 
  | 
A | 
  | 
 | 
Turpentine | 
B | 
B | 
B | 
B | 
 | 
A | 
A | 
 | 
B | 
D | 
A | 
A | 
B | 
B | 
C | 
A | 
D | 
D | 
A | 
 | 
Urea | 
B | 
A | 
B | 
B | 
 | 
B | 
B | 
 | 
A | 
B | 
A | 
A | 
B | 
 | 
 | 
A | 
A | 
D | 
A | 
 | 
Varnish | 
A | 
A | 
C | 
A | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
  | 
A | 
D | 
A | 
 | 
Vaseline | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Vegetable Juice | 
C | 
A | 
A | 
 | 
 | 
A | 
A | 
 | 
  | 
B | 
A | 
A | 
 | 
 | 
 | 
A | 
B | 
B | 
A | 
 | 
Vinegar | 
D | 
D | 
C | 
 | 
 | 
A | 
A | 
 | 
A | 
A | 
B | 
A | 
B | 
 | 
B | 
A | 
A | 
A | 
A | 
 | 
Vinyl Acetate | 
A | 
A | 
B | 
 | 
 | 
B | 
B | 
 | 
  | 
  | 
  | 
  | 
 | 
 | 
 | 
  | 
B | 
D | 
A | 
 | 
Vinyl Chloride | 
B | 
A | 
A | 
A | 
 | 
B | 
A | 
 | 
A | 
D | 
  | 
A | 
 | 
 | 
 | 
  | 
  | 
D | 
A | 
 | 
Water, Acid, Mine | 
C | 
C | 
A | 
A | 
 | 
B | 
B | 
 | 
A | 
B | 
B | 
A | 
 | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Water, Deionized | 
A | 
A | 
B | 
A | 
 | 
A | 
A | 
 | 
A | 
  | 
  | 
A | 
 | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Water, Distilled, Lab Grade 7 | 
A | 
A | 
 | 
A | 
 | 
A | 
A | 
 | 
A | 
B | 
B | 
A | 
A | 
 | 
A | 
A | 
A | 
A | 
A | 
 | 
Water, Fresh | 
B | 
B | 
B | 
A | 
 | 
A | 
A | 
 | 
A | 
A | 
A | 
A | 
 | 
 | 
D | 
A | 
A | 
B | 
A | 
 | 
Water, Salt | 
B | 
C | 
B | 
A | 
 | 
B | 
B | 
 | 
A | 
A | 
A | 
A | 
B | 
 | 
 | 
A | 
A | 
B | 
A | 
 | 
Weed Killers | 
C | 
  | 
B | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
A | 
 | 
 | 
 | 
  | 
  | 
  | 
 | 
 | 
Wetting agents (<5%) | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Whey | 
B | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
  | 
A | 
  | 
 | 
 | 
 | 
  | 
  | 
  | 
A | 
 | 
Whiskey & Wines | 
C | 
B | 
B | 
 | 
 | 
A | 
A | 
 | 
A | 
C | 
A | 
A | 
 | 
 | 
B | 
  | 
A | 
B | 
A | 
 | 
White Liquor (Pulp Mill) | 
B | 
A | 
  | 
A | 
 | 
A | 
A | 
 | 
 | 
 | 
D | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
White Water (Paper Mill) | 
 | 
  | 
  | 
  | 
 | 
A | 
A | 
 | 
 | 
 | 
B | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
  | 
 | 
Xylene or Xylol | 
A | 
A | 
B | 
A | 
 | 
B | 
B | 
 | 
A | 
D | 
A | 
A | 
A | 
D | 
D | 
A | 
C | 
D | 
A | 
 | 
Yeast | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
B | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Zinc Acetate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Zinc Carbonate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
B | 
 | 
 | 
Zinc Chloride | 
D | 
B | 
D | 
B | 
 | 
B | 
B | 
 | 
A | 
C | 
C | 
C | 
B | 
B | 
B | 
A | 
A | 
B | 
A | 
 | 
Zinc Hydrosulfite | 
D | 
  | 
 | 
 | 
 | 
A | 
A | 
 | 
  | 
A | 
C | 
A | 
 | 
 | 
 | 
A | 
  | 
  | 
A | 
 | 
Zinc Nitrate | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
R | 
 | 
 | 
Zinc Plating | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
Zinc Stearate | 
  | 
  | 
  | 
 | 
 | 
  | 
  | 
 | 
  | 
  | 
  | 
B | 
 | 
B | 
  | 
 | 
B | 
  | 
  | 
 | 
Zinc Sulfate | 
D | 
B | 
D | 
A | 
 | 
B | 
A | 
 | 
A | 
A | 
C | 
A | 
 | 
 | 
B | 
A | 
A | 
B | 
A | 
 | 
Zinc: Acid Chloride 140F | 
 | 
 | 
 | 
A | 
 | 
 | 
C | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Zinc: Acid Fluoborate | 
 | 
 | 
 | 
A | 
 | 
 | 
C | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
A | 
A | 
 | 
Zinc: Acid Sulfate | 
 | 
 | 
 | 
A | 
 | 
 | 
C | 
 | 
 | 
 | 
 | 
D | 
 | 
 | 
 | 
 | 
A | 
D | 
A | 
 | 
Zinc: Alkaline Cyanide | 
 | 
 | 
 | 
A | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
 | 
 | 
 | 
 | 
A | 
A | 
A |