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| Potash | - | A | - | A | C | - | A | C | - | B | - | A | B | - | A | B | A | - | B | A | - | A | A | A | A | A | - | B | - | B | A | 
| Potassium Bicarbonate | - | A | - | B | C | A | B | B | - | D | - | A | - | A | A | C | A | C | B | A | A | A | A | - | A | A | - | A | - | B | A | 
| Potassium Bromide | A | A | - | B | C | A | B | C | - | D | D | A | - | A | A | A | C | - | B | A | C | A | A | - | A | A | - | A | A | B | A | 
| Potassium Carbonate | B | A | - | A | C | A | A | C | - | B | B | A | B | A | A | B | A | - | B | A | A | A | A | A | A | B | - | A | - | B | A | 
| Potassium Chlorate | B | A | A | A | B | A | B | B | - | B | B | A | B | A | A | B | D | - | B | A | A | A | A | - | A | A | - | A | - | B | A | 
| Potassium Chloride | C | A | A | B | B | A | A | C | C | B | B | A | A | A | A | A | B | C | B | A | A | A | A | - | A | A | - | A | A | A | A | 
| Potassium Chromate | - | - | B | B | A | - | B | A | - | A | - | A | - | - | A | C | - | - | B | - | A | A | D | - | A | A | - | A | - | B | C | 
| Potassium Cyanide Solutions | B | A | B | A | D | A | A | D | - | B | B | A | - | A | A | C | A | - | B | A | A | C | A | - | B | A | - | A | A | A | A | 
| Potassium Dichromate | B | A | A | A | A | A | B | C | - | B | C | A | - | A | A | C | D | - | B | A | A | A | A | - | B | A | - | A | A | A | A | 
| Potassium Ferrocyanide | B | A | - | A | C | - | B | A | - | - | C | A | - | A | - | - | A | - | A | - | - | - | - | - | - | D | - | - | - | A | A | 
| Potassium Hydroxide (50%) | A | B | B | B | D | C | A | D | D | C | A | A | B | A | A | D | A | C | B | A | A | - | D | A | B | B | C | A | A | C | A | 
| Potassium Nitrate | B | A | B | A | B | A | B | B | - | - | B | A | C | A | A | B | C | - | B | A | C | A | A | - | B | A | - | A | A | A | A | 
| Potassium Permanganate | B | A | B | B | B | B | B | B | - | B | B | A | - | A | A | C | D | C | B | B | A | A | A | - | B | A | - | A | - | B | B | 
| Potassium Sulfate | B | A | B | B | A | A | A | B | B | B | B | A | A | A | A | B | C | - | B | A | A | A | A | - | A | A | C | A | A | C | A | 
| Potassium Sulfide | A | A | - | A | B | - | B | B | - | B | B | A | - | A | - | - | - | - | - | - | - | - | - | - | - | A | - | - | - | - | - | 
| Propane (Liquified) 1 2 | A | A | - | A | A | - | - | A | A | - | B | D | - | A | D | A | A | - | - | D | - | A | A | - | A | A | D | B | D | D | A | 
| Propylene Glycol | B | B | - | A | A | - | - | B | - | B | B | - | - | A | - | B | B | B | B | - | - | A | A | - | A | A | - | C | - | - | A | 
| Pyridine | - | C | - | B | B | - | - | - | - | B | A | - | D | A | D | D | - | - | C | B | A | A | A | - | D | D | - | D | B | D | A | 
| Pyrogallic Acid | B | A | A | A | B | - | A | B | - | B | B | A | - | A | - | D | A | - | - | - | - | A | A | - | A | A | - | - | - | - | A | 
| Rosins | A | A | A | A | A | - | B | A | C | - | C | - | - | A | - | B | A | - | - | A | - | A | A | - | - | A | - | - | - | - | A | 
| Rum | - | A | - | A | - | - | - | - | - | - | - | A | - | - | A | A | A | - | - | A | - | A | A | - | A | A | - | A | - | - | A | 
| Rust Inhibitors | - | A | - | A | - | - | - | A | - | A | - | - | - | - | - | A | - | - | - | A | - | A | A | - | A | A | - | C | - | - | A | 
| Salad Dressing | - | A | - | A | B | - | - | B | - | D | - | A | - | - | A | A | A | - | - | A | - | A | A | - | A | A | - | - | - | - | A | 
| Sea Water | A | A | C | A | C | A | - | C | - | - | D | A | - | A | A | A | A | - | B | A | - | A | A | A | A | A | B | B | A | A | A | 
| Shellac (Bleached) | A | A | - | A | A | - | - | A | B | B | A | - | - | A | - | A | A | - | - | A | - | - | A | - | - | A | - | - | - | - | A | 
| Shellac (Orange) | A | A | - | A | A | - | - | A | C | C | A | - | - | A | - | A | A | - | - | A | - | - | A | - | - | A | - | - | - | - | A | 
| Silicone | - | B | - | A | B | - | - | A | - | - | - | - | - | - | A | A | A | - | - | A | - | A | A | - | A | A | B | A | A | A | A | 
| Silver Bromide | - | C | C | B | D | - | - | - | - | - | - | - | - | - | A | C | - | - | - | - | - | A | - | - | - | - | - | - | - | - | A | 
| Silver Nitrate | B | A | B | A | D | A | A | D | - | D | D | A | B | A | A | C | A | - | B | A | - | A | A | - | A | C | - | A | C | A | A | 
| Soap Solutions 1 | A | A | A | A | C | A | B | B | B | A | B | B | A | A | A | A | - | B | A | A | A | A | A | A | A | B | B | - | C | A | |
| Soda Ash ( See Sodium Carbonate) | A | ||||||||||||||||||||||||||||||
| Sodium Acetate | B | A | A | B | B | A | A | B | - | C | C | A | - | A | A | B | A | - | B | A | - | A | A | - | D | D | - | C | - | A | A | 
| Sodium Aluminate | B | - | - | A | C | B | B | B | - | - | C | - | - | A | A | B | A | - | - | - | A | A | A | - | A | A | - | A | A | B | A | 
| Sodium Bicarbonate | B | A | A | A | A | A | - | B | A | C | C | A | B | A | A | B | A | B | B | A | A | A | A | A | A | A | C | A | A | A | A | 
| Sodium Bisulfate | A | A | - | A | D | B | B | C | C | D | D | A | B | A | A | B | C | C | B | A | A | A | A | - | B | A | C | A | - | A | A | 
| Sodium Bisulfite | - | A | - | A | A | A | B | C | - | D | - | A | B | A | A | B | D | B | B | A | A | A | A | - | A | A | C | A | - | A | A | 
| Sodium Borate | B | A | - | A | C | - | A | A | - | C | C | C | - | A | - | - | A | - | A | - | - | - | - | - | A | - | B | A | - | - | - | 
| Sodium Carbonate | B | A | B | B | C | A | A | B | B | B | B | A | B | A | A | A | A | C | B | A | A | B | A | - | A | A | - | A | A | A | A | 
| Sodium Chlorate | B | A | - | A | B | A | B | B | - | - | C | A | B | A | A | D | A | - | B | A | A | A | A | - | A | D | - | A | - | A | A | 
| Sodium Chloride | B | A | C | B | C | A | A | B | C | B | C | A | B | A | A | A | A | B | B | A | A | A | A | A | A | A | C | A | A | B | A | 
| Sodium Chromate | A | A | A | - | D | - | B | B | - | B | B | - | - | A | A | D | A | - | - | A | A | A | B | - | B | A | - | A | - | - | C | 
| Sodium Cyanide | B | A | - | A | D | A | - | D | D | B | B | A | - | A | A | D | C | - | B | A | A | A | A | - | A | A | D | A | A | A | A | 
| Sodium Fluoride | B | C | - | C | C | A | A | C | - | D | D | D | D | A | - | - | A | - | C | - | - | - | - | - | C | D | - | D | - | D | A | 
| Sodium Hydrosulfite | - | - | - | - | A | - | A | C | - | - | - | C | A | A | - | - | A | - | - | - | - | - | A | - | A | - | - | A | - | A | - | 
| Sodium Hydroxide (20%) | - | A | A | A | D | A | A | C | D | A | - | A | B | A | A | D | C | C | B | A | A | C | D | A | A | A | D | B | A | A | A | 
| Sodium Hydroxide (50% Solution) | - | A | B | - | D | A | A | C | D | B | - | A | B | A | A | D | C | C | C | A | B | C | D | A | A | D | D | C | - | A | A | 
| Sodium Hydroxide (80% Solution) | - | A | D | - | D | A | B | C | D | C | - | A | B | A | A | D | C | C | C | A | B | C | D | A | B | D | D | C | - | B | A | 
| Sodium Hypochlorite 3 (to 20%) | - | C | C | C | C | A | A | D | D | D | - | A | B | A | A | D | A | - | B | D | C | D | A | B | A | C | D | D | B | C | B | 
| Sodium Hypochlorite | D | - | A | - | D | A | A | D | - | D | D | A | - | A | A | - | A | - | - | A | C | - | D | - | D | B | C | A | - | - | A | 
| Sodium Hyposulfate | - | A | A | - | D | - | - | D | - | - | - | - | - | A | - | - | - | - | - | - | - | - | - | - | - | - | - | C | - | C | C | 
| Sodium Metaphosphate 2 | A | - | A | - | A | - | - | C | C | B | B | - | - | A | - | B | A | - | - | D | - | A | A | - | A | A | - | B | A | A | A | 
| Sodium Metasilicate | A | - | A | - | B | - | - | B | - | C | C | - | - | A | - | D | - | - | - | - | - | A | - | - | A | A | D | A | - | - | A | 
| Sodium Nitrate | B | A | A | A | A | A | B | B | C | A | B | A | B | A | A | B | A | - | B | A | - | A | A | A | B | C | D | B | A | C | A | 
| Sodium Perborate | B | - | C | - | B | - | - | C | C | B | B | - | - | A | A | B | A | - | - | A | - | A | A | - | A | B | D | B | A | C | A | 
| Sodium Peroxide | B | A | A | - | C | - | B | C | C | D | C | A | - | A | - | D | D | - | - | - | - | A | A | - | A | C | D | B | A | C | A | 
| Sodium Polyphosphate (Mono, Di , Tribasic) | - | A | A | - | D | A | A | C | - | - | - | - | - | A | A | B | - | - | - | - | - | A | A | - | A | A | - | D | A | A | A | 
| Sodium Silicate | B | A | B | A | C | A | B | C | C | - | B | A | B | A | A | C | A | - | - | A | - | A | A | - | A | A | - | A | A | A | A | 
| Sodium Sulfate | B | A | A | C | B | A | B | B | B | A | B | A | - | A | A | B | A | - | B | A | A | A | A | - | A | A | - | A | A | C | A | 
| Sodium Sulfide | B | A | B | - | D | A | B | D | D | A | B | A | B | A | A | B | A | - | B | A | A | A | A | - | A | C | - | A | A | C | A | 
| Sodium Sulfite | - | C | C | - | C | A | A | C | - | A | - | A | A | A | - | - | D | - | A | - | - | A | A | - | A | A | - | A | - | A | A | 
| Sodium Tetraborate | - | - | A | - | - | - | - | - | - | - | - | A | - | - | A | B | - | - | - | - | - | A | A | - | A | A | - | - | - | - | A | 
| Sodium Thiosulphate ("Hypo") | A | A | A | - | B | A | - | D | D | C | B | A | - | A | A | C | A | - | - | A | A | A | A | - | A | B | - | A | A | C | A | 
| Sorghum | - | A | A | - | - | - | - | - | - | A | - | - | - | - | - | A | A | - | - | - | - | A | A | - | A | A | - | A | - | - | A | 
| Soy Sauce | - | A | A | - | A | - | - | A | - | D | - | - | - | - | A | A | A | - | - | - | - | A | A | - | A | A | - | A | - | D | A | 
| Stannic Chloride | D | D | D | - | D | A | B | D | - | D | D | A | - | A | A | C | A | - | B | A | - | - | A | - | A | A | D | A | A | A | A | 
| Stannic Fluoborate | - | - | A | - | - | - | - | - | - | D | - | - | - | - | A | C | - | - | A | - | - | - | A | - | A | A | - | A | - | - | A | 
| Stannous Chloride | D | D | C | - | D | A | A | D | - | D | D | A | A | A | - | - | D | - | A | - | - | - | - | - | B | C | D | D | - | A | A | 
| Starch | B | A | A | - | A | - | - | B | - | C | C | A | - | A | A | A | A | - | B | - | - | A | A | - | A | A | - | A | - | - | A | 
| Stearic Acid 2 | B | A | A | A | B | A | A | C | C | C | C | A | B | A | A | A | A | - | B | D | - | A | A | A | A | B | D | B | B | C | A | 
| Stoddard Solvent | A | A | A | A | A | A | A | A | A | B | B | A | D | A | D | A | A | B | D | D | A | A | A | - | A | B | D | D | D | D | A | 
| Styrene | A | A | A | - | A | - | - | A | - | - | A | - | - | A | A | A | - | - | - | - | - | A | A | - | B | D | D | D | D | D | A | 
| Sugar (Liquids) | A | A | A | A | A | - | A | A | - | B | B | - | - | A | A | A | A | B | - | A | - | A | A | A | A | A | - | B | - | A | A | 
| Sulfate Liquors | - | C | C | - | B | - | A | C | - | - | - | - | - | - | - | D | - | - | - | A | - | A | A | - | - | - | - | C | - | - | A | 
| Sulfur Chloride | - | D | D | D | D | - | - | C | D | - | - | A | C | A | A | D | A | - | A | D | - | A | C | - | A | D | - | D | D | D | C | 
| Sulfur Dioxide 2 | - | A | A | C | A | A | B | B | - | - | - | D | B | A | D | B | D | D | C | D | A | A | A | - | D | D | C | B | A | D | A | 
| Sulfur Dioxide (Dry) | A | A | A | - | A | - | A | A | C | A | B | D | - | A | - | - | A | - | D | - | - | A | A | - | A | - | - | D | - | D | D | 
| Sulfur Trioxide (Dry) | A | A | C | - | A | - | - | B | - | B | B | A | B | A | D | D | D | - | - | - | - | B | A | - | A | D | - | D | B | C | A | 
| Sulfuric Acid (to 10%) | - | D | C | C | C | A | A | D | D | D | - | A | B | A | A | D | D | B | B | A | A | A | A | - | A | C | - | D | D | C | A | 
| Sulfuric Acid (10%-75%) 2 | - | D | D | D | D | C | B | D | D | D | - | A | B | A | B | D | D | B | C | A | B | A | D | C | A | D | - | D | D | D | B | 
| Sulfuric Acid 75%-100% | - | - | D | - | - | D | B | - | D | - | - | B | - | A | A | - | D | - | - | B | C | - | A | - | A | D | - | D | - | - | D | 
| Sulfurous Acid | C | C | B | C | C | A | B | D | - | D | D | A | B | A | A | D | D | - | B | A | - | B | A | - | A | C | D | B | B | C | A | 
| Sulfuryl Chloride | - | - | - | - | - | - | - | - | - | - | - | A | - | A | - | - | - | - | - | - | - | - | A | - | - | - | - | - | - | - | A | 
| Syrup | - | A | A | A | A | - | - | D | - | - | - | A | - | - | A | A | A | B | - | A | - | A | A | A | A | A | - | B | - | A | A | 
| Tallow | - | A | A | - | A | - | - | - | - | - | - | - | - | - | A | A | A | - | C | - | - | A | A | - | A | A | - | - | - | - | A | 
| Tannic Acid | B | A | A | A | C | A | B | B | - | C | C | A | B | A | A | B | D | - | B | A | - | A | A | A | A | D | C | A | A | A | A | 
| Tanning Liquors | - | A | A | - | C | A | A | A | - | - | - | A | B | A | - | B | - | - | - | A | - | A | A | - | A | C | - | - | - | - | A | 
| Tartaric Acid | B | A | B | B | C | A | B | A | C | D | D | A | B | A | A | B | A | - | B | A | - | A | A | - | A | D | C | A | - | A | A | 
| Tetrachlorethane | - | - | A | - | - | A | A | - | - | - | - | D | - | A | D | A | A | - | - | A | - | A | A | - | A | D | - | - | D | D | A | 
| Tetrahydrofuran | - | A | A | - | D | - | - | D | - | D | A | D | - | A | D | A | A | - | D | C | A | A | A | - | B | D | - | D | B | D | A | 
| Toluene, Toluol 3 | A | A | A | - | A | A | A | A | A | A | A | D | D | A | D | A | A | D | D | D | A | A | A | A | C | D | D | D | D | D | A | 
| Tomato Juice | A | A | A | - | A | - | - | C | - | C | C | - | - | A | A | B | A | B | - | A | A | A | A | - | A | A | - | A | - | - | A | 
| Trichlorethane | - | C | A | - | C | A | A | C | - | C | - | - | - | A | D | A | - | - | - | - | - | A | A | - | A | D | D | D | D | D | A | 
| Trichlorethylene 2 | B | A | A | - | B | A | A | B | A | C | B | D | - | A | D | A | C | D | D | D | C | A | A | C | A | D | D | D | D | D | A | 
| Trichloropropane | - | - | A | - | - | - | - | A | - | - | - | - | - | - | D | A | - | D | - | - | - | A | A | - | A | A | - | A | - | - | A | 
| Tricresylphosphate | - | - | A | - | - | B | A | A | - | - | - | D | - | A | A | C | - | - | - | - | - | A | A | - | B | D | - | D | A | - | A | 
| Triethylamine | - | - | - | - | - | - | - | A | - | - | - | A | - | - | B | D | - | - | - | - | - | A | A | - | A | A | D | B | - | - | A | 
| Turpentine 3 | B | A | A | - | C | - | A | B | C | B | B | A | B | A | D | A | A | - | D | B | A | A | A | - | A | D | - | D | D | D | A | 
| Urine | - | A | A | - | B | - | - | C | - | B | - | A | - | - | A | A | A | - | B | A | - | A | A | - | A | A | - | D | A | - | A | 
| Vegetable Juice | - | A | A | - | A | - | - | C | - | D | - | - | - | - | A | A | A | - | - | - | - | A | A | - | A | A | B | D | - | D | A | 
| Vinegar | A | A | A | A | D | A | A | B | B | C | D | A | - | A | A | B | A | B | B | A | A | A | A | A | A | C | - | B | A | C | A | 
| Varnish (Use VitonĀ® for Aromatic) | A | A | A | A | A | - | - | A | B | - | C | - | - | A | D | A | A | - | - | A | - | A | A | A | A | B | C | D | - | D | A | 
| Water, Acid , Mine | - | A | A | - | C | - | - | C | D | C | - | A | B | - | A | D | A | B | - | A | B | A | A | - | A | A | - | B | - | B | A | 
| Water, Distilled , Lab Grade 7 | - | A | A | - | B | - | - | A | - | D | - | A | B | A | A | A | A | A | - | A | A | A | A | A | A | A | - | B | A | A | A | 
| Water, Fresh | A | A | A | - | A | - | - | A | C | B | D | A | B | A | A | A | A | A | D | A | A | A | A | A | A | A | - | B | A | A | A | 
| Water, Salt | - | A | A | - | B | - | - | B | C | D | - | A | B | - | A | A | A | - | - | A | A | A | A | A | A | A | - | B | A | A | A | 
| Weed Killers | - | A | A | - | C | - | - | C | - | - | - | - | - | - | - | A | A | - | - | - | - | A | A | - | A | B | - | C | - | - | A | 
| Whey | - | A | A | - | B | - | - | - | - | - | - | - | - | - | - | A | - | - | - | - | - | A | A | - | A | A | - | - | - | - | A | 
| Whiskey and Wines | A | A | A | A | D | - | - | B | B | D | D | A | - | A | A | A | A | - | B | A | - | A | A | - | A | A | B | A | A | A | A | 
| White Liquor (Pulp Mill) | - | A | A | - | - | - | A | D | - | C | - | A | - | A | A | D | A | - | - | A | - | A | A | - | A | A | - | A | - | - | A | 
| White Water (Paper Mill) | - | A | A | - | - | - | - | A | - | - | - | - | - | - | - | B | A | - | - | A | - | A | A | - | A | - | - | A | - | - | A | 
| Xylene 2 | A | A | A | - | A | - | A | A | A | A | B | D | - | A | D | A | A | D | D | D | A | A | A | A | A | D | D | D | D | D | A | 
| Zinc Chloride | D | A | B | B | D | A | B | D | D | D | D | A | - | A | A | C | A | - | B | A | A | A | A | - | A | A | - | A | A | A | A | 
| Zinc Hydrosulphite | - | - | A | - | D | - | - | D | - | D | - | - | - | - | A | C | - | - | - | - | A | A | A | - | - | A | - | A | A | - | A | 
| Zinc Hydrosulfate | B | A | A | A | D | A | B | B | C | C | D | C | B | A | A | C | A | - | B | A | A | A | A | - | A | A | - | A | A | C | A | 
| Zinc Sulfate | B | A | A | A | D | A | B | B | C | C | D | C | B | A | A | C | A | - | B | A | A | A | A | - | A | A | - | A | A | C | A | 
|   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   | 
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