Tabella Resistenza Chimica
Informazioni sui solventi
Solventi aromatici: benzene, cumene, p-cumene, naftalene, toluene, xylene, cresol, stirene, ciclooesanolo e combinazioni.
Solventi alifatici: propano, butano, pentano, esano, eptano, dipentene, tripropilene.
Solventi alogenati: cloroformio, diclorobenzene, dicloroethilene, bromuro di metilene, cloruro di metilene, cloruro di benzile, tetracloruro di carbonio, tricloroetilene, bisolfito di carbonio, trementina, percloroetilene, dicloroetano.
Chetoni: acetone, metilchetone, isobutilchetone, metiletilchetone, metil-isobutil-chetone.
Esteri: acetato di butile, acetato di metile, acetato di amile, acetato di isobutile.
Ammine: anilina, etildiammina, dietanolammina, trietanolammina, dimetilammina, monoetanolammina.
Alcooli: metanolo, etanolo, propanolo, butanolo, glicerolo.
Attenzione!
I seguenti dati sono basati su test di Laboratorio ad alta attendibilità . La lista deve comunque essere usata unicamente come guida in quanto bisogna sempre considerare, nella scelta della gomma, variabili quali temperatura, concentrazione del fluido, tipologia di solvente e ambiente di lavoro.
Per qualsiasi applicazione gravosa contattare IVG.
Tutti i dati sono da considerarsi validi a 20°C (70°F) eccetto dove specificato.
Tabella resistenza chimica
LEGENDA: "1" = Idoneo, "2" = Qualche attacco. Limitare esposizione, "3" = Non idoneo, "-" = Nessun dato
| fluido o materiale convogliato | SBR | NR | EPDM | EPR | IIR | CR | NBR | CPE | Hypalon | Viton | XLPE | UHMWPE | Teflon |
| Acetaldehyde | 3 | 2 | 2 | 1 | 2 | 2 | 3 | 2 | 3 | 3 | 1 | 1 | 1 |
| Acetic Acid 10% | 2 | 2 | 1 | 1 | 1 | 2 | 3 | 1 | 2 | 2 | 1 | 1 | 1 |
| Acetic Acid 50% | 3 | 3 | 2 | 1 | 2 | 2 | 3 | 1 | 2 | 2 | 1 | 1 | 1 |
| Acetic Acid, glacial | 3 | 3 | 2 | 1 | 2 | 3 | 3 | 2 | 3 | 3 | 1 | 1 | 1 |
| Acetic Anidride | 3 | 3 | 2 | 2 | 2 | 3 | 3 | 1 | 2 | 3 | 1 | 1 | 1 |
| Acetone | 3 | 3 | 1 | 1 | 1 | 3 | 3 | 1 | 3 | 3 | 1 | 1 | 1 |
| Acetone cyanohidrin | - | - | 1 | 1 | 2 | - | - | - | - | - | 1 | 1 | 1 |
| Acetophenone | - | - | 2 | 1 | 2 | - | - | 2 | - | - | 1 | 1 | 1 |
| Acetyl Acetone | 3 | 3 | 1 | 1 | 2 | 3 | 3 | 2 | 3 | 3 | 1 | 1 | 1 |
| Acetyl chloride | 3 | 3 | 2 | 2 | 2 | 3 | 3 | 1 | 3 | 1 | 1 | 2 | 1 |
| Acetylene | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Acetylene dichloride | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 2 | 1 |
| Acqua regia | - | - | - | - | - | - | - | 2 | - | 2 | 3 | 3 | 1/2 |
| Acrolein | 3 | 3 | 2 | 2 | 2 | - | - | - | 2 | 1 | 1 | 2 | 1 |
| Acrylonitrile | - | - | 3 | 3 | 3 | - | - | 1 | - | 3 | 1 | 2 | 1 |
| Adipic acid | 2 | - | 2 | 1 | 2 | 2 | - | - | - | - | 1 | 1 | 1 |
| Air 160 °C | 3 | 3 | 2 | 1 | 2 | 2 | 3 | 2 | 3 | 3 | 3 | 3 | 1 |
| Air 60°C | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Allyl acetate | - | - | - | - | - | - | - | - | - | 2 | 1 | 1 | 1 |
| Allyl Alcohol | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Allyl bromide | - | - | - | - | - | - | - | 2 | - | 2 | 1 | 2 | 1 |
| Allyl chloride | - | - | - | - | - | - | - | 2 | - | 2 | 1 | 2 | 1 |
| Aluminium acetate | 2 | 2 | 1 | 1 | 2 | 2 | 3 | 1 | 2 | - | 1 | 1 | 1 |
| Aluminium chloride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Aluminium fluoride | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
| Aluminium hydroxide | 2 | 1 | - | 1 | 1 | 1 | - | 1 | 2 | 2 | 1 | 1 | 1 |
| Aluminium nitrate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Aluminium sulfate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Aminobenzene | - | - | - | - | - | - | - | 2 | - | - | 1 | 2 | 1 |
| Aminoethanol | 2 | 2 | 1 | 1 | 1 | - | 2 | 1 | 2 | - | 1 | 1 | 1 |
| Ammonia anhydrous | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | - | 2 | 2 | 1/2 |
| Ammonia sol. 10% | 2 | 2 | 1 | 1 | 1 | 1 | - | 1 | 1 | - | 1 | 1 | 1 |
| Ammonia sol. 50% | 2 | 2 | 1 | 1 | - | 1 | - | 1 | 1 | - | 1 | 1 | 1 |
| Ammonium chloride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
| Ammonium hidroxide | 2 | 2 | 2 | 1 | - | 1 | - | 1 | 2 | 3 | 1 | 1 | 1 |
| Ammonium nitrate | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Ammonium phosphate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Ammonium sulphate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Ammonium sulphite | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | - | 1 | 1 | 1 |
| Ammonium thiosulph. | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | - | 1 | 1 | 1 |
| Amyl acetate | 3 | 3 | 3 | 3 | 2 | 2 | - | - | - | - | 1 | 1 | 1 |
| Amyl acetone | 3 | 3 | 3 | 3 | 3 | 3 | - | - | - | - | 1 | 1 | 1 |
| Amyl alcohol | 2 | 2 | 2 | 1 | 2 | - | - | 1 | - | - | 1 | 1 | 1 |
| Amyl bromide | 3 | 3 | 2 | 2 | - | - | - | 2 | - | - | 1 | 1 | 1 |
| Amyl chloride | 3 | 3 | 2 | 2 | - | - | - | 2 | - | - | 1 | 1 | 1 |
| Amyl oleate | - | - | - | - | - | - | 1 | - | - | - | 1 | 1 | 1 |
| Amyl phenol | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 |
| Amyl phthalate | - | - | 2 | 1 | 2 | - | - | - | - | 2 | 1 | 1 | 1 |
| Amylamine | 2 | 2 | 2 | 1 | 1 | - | - | 2 | - | - | 1 | 1 | 1 |
| Amylamine | 2 | 2 | - | 1 | 2 | - | - | - | 3 | - | 1 | 1 | 1 |
| Anethole | 3 | 3 | 3 | 3 | 3 | - | 3 | 2 | - | 2 | 2 | 3 | 1 |
| Aniline | 3 | 3 | 2 | 1 | 2 | - | - | 2 | - | 2 | 1 | 1 | 1 |
| Animal fats | 3 | 3 | 3 | 3 | 1/2 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 1 |
| Antimony pentachlorid | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 |
| Aromatic tar | - | - | - | - | - | - | 2 | - | - | 1 | 1 | 2 | 1 |
| Arsenic acid | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 |
| Ascorbic acid | - | - | - | 1 | - | - | - | 1 | - | - | 1 | 1 | 1 |
| Asphalt 130°C | - | - | - | - | - | - | 3 | - | - | 2 | 3 | 3 | 1/2 |
| Asphalt 80°C | - | - | - | - | - | - | 1 | - | - | 1 | 3 | 2 | 1 |
| ASTM FUEL A | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 2 | 1 | 1 | 1 | 1 |
| ASTM FUEL B | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 2 | 1 | 1 | 1 | 1 |
| ASTM FUEL C | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 3 | 3 | 1 | 2 | 2 | 1 |
| ASTM OIL n°1 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 |
| ASTM OIL n°2 | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 1 |
| ASTM OIL n°3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 2 | 1 | 1 | 1 | 1 |
| Banana oil | 3 | 3 | 3 | 3 | 2 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 1 |
| Barium carbonate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Barium chloride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Barium hydroxide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Barium sulfide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Beer | 2 | 1 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 |
| Beet sugar liquors | 2 | 1 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 |
| Benzal chloride | - | - | - | 2 | - | - | - | - | - | - | 1 | 1 | 1 |
| Benzaldehyde | 3 | 3 | 2 | 1 | 2 | - | 3 | - | - | - | 1 | 1 | 1 |
| Benzene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 2 | 1 |
| Benzene carboxylic ac. | - | - | - | - | - | - | - | 2 | - | 1 | 1 | 1 | 1 |
| Benzene sulfon ac.10% | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 |
| Benzine petrol ether | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 3 | 1 | 1 | 1 | 1 |
| Benzine petrol naphtha | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 3 | 1 | 1 | 1 | 1 |
| Benzoic acid | 3 | 3 | 3 | 3 | 3 | 3 | - | 1 | 2 | 1 | 1 | 1 | 1 |
| Benzoic aldehyde | 3 | 3 | 2 | 1 | 2 | - | - | 2 | - | - | 1 | 1 | 1 |
| Benzotrichloride | - | - | - | - | - | - | - | - | - | - | 2 | 3 | 1 |
| Benzyl acetate | 3 | 3 | 3 | 2 | 2 | - | - | 2 | - | 3 | 1 | 2 | 1 |
| Benzyl alcohol | 3 | 3 | 3 | 2 | 3 | 3 | - | 1 | - | 1 | 1 | 1 | 1 |
| Benzyl chloride | - | - | - | 2 | - | - | - | - | - | 2 | 1 | 2 | 1 |
| Bichromate of soda | - | - | - | 2 | - | - | - | - | - | - | 1 | 1 | 1 |
| Black sulphate liquor | - | - | - | 1 | 1 | 1 | - | - | - | 1 | 1 | 1 | 1 |
| Bleach (2-12% clorine) | - | - | - | 2 | - | - | - | - | - | 2 | 1 | 2 | 1 |
| Bordeaux mixture | - | - | 1 | 1 | 1 | - | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Boric acid | 1 | - | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Brine | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Bromic acid | - | - | - | - | - | - | - | - | - | 2 | 3 | 3 | 1/2 |
| Bromine | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 3 | 1/2 |
| Bromobenzene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 3 | 1/2 |
| Bromochloromethane | 3 | 3 | 3 | 2 | - | 3 | 3 | 2 | - | - | 2 | 2 | 1 |
| Bromoethane | 3 | 3 | 3 | - | - | - | 3 | 2 | - | - | - | - | 1 |
| Bromotoluene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | - | - | 1 |
| Bunker oil | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 2 | - | 1 | 1 | 1 | 1 |
| Butadiene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | 1 |
| Butane | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 2 | 2 | 1 | 1 | 1 | 1 |
| Butanoic acid | - | - | - | 2 | - | - | - | 1 | - | 1 | 1 | - | 1 |
| Butanol | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Butanone | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 |
| Butoxiethanol | - | - | - | 1 | - | - | - | 1 | - | - | 1 | - | 1 |
| Butyl acetate | 3 | 3 | - | 2 | 2 | - | - | 2 | - | 3 | 1 | 1 | 1 |
| Butyl acrylate | 3 | 3 | 3 | 3 | 3 | 3 | - | 2 | 3 | 3 | 1 | 2 | 1 |
| Butyl alcohol | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Butyl aldehyde | - | - | 2 | 1 | 2 | - | - | - | - | - | 1 | 1 | 1 |
| Butyl amine | - | - | 2 | 1 | 2 | - | 2 | 2 | - | - | 1 | 1 | 1 |
| Butyl benzene | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 |
| Butyl benzoate | - | - | - | 2 | - | - | - | - | - | 1 | 1 | - | 1 |
| Butyl bromide | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | - | 1 |
| Butyl butyrate | - | - | - | - | - | - | - | - | - | - | 2 | - | 1 |
| Butyl carbitol | 3 | 3 | 2 | 1 | - | - | - | - | 3 | 1 | 1 | 1 | 1 |
| Butyl cellosolve | 3 | 3 | 2 | 1 | 2 | 2 | 3 | 1 | 2 | 3 | 1 | 1 | 1 |
| Butyl chloride | 3 | 3 | 3 | - | - | 3 | 3 | 3 | - | 2 | 2 | - | 1 |
| Butyl ether | 3 | 3 | - | - | - | 2 | 3 | 2 | - | - | 1 | 1 | 1 |
| Butyl ether acetaldehy | - | - | - | 1 | 2 | - | - | - | - | - | 1 | - | 1 |
| Butyl ethil ether | 3 | 3 | - | 2 | - | - | 3 | - | 3 | - | 1 | - | 1 |
| Butyl glicol | - | - | 2 | 1 | - | - | - | - | - | - | 1 | 1 | 1 |
| Butyl oleate | 3 | 3 | - | 2 | 2 | - | 3 | - | - | 1 | 1 | - | 1 |
| Butyl Phenol | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 |
| Butyl phthalate | 3 | 3 | - | 2 | 2 | - | - | - | - | 2 | 1 | 1 | 1 |
| Butyl stearate | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 3 | 3 | 1 | 1 | 1 |
| Butylene | - | - | 3 | 3 | - | 3 | 2 | 3 | - | 1 | - | - | 1 |
| Butyraldehyde | 3 | 3 | 2 | 1 | 2 | - | 3 | - | - | 3 | 1 | 1 | 1 |
| Butyric acid | 3 | 3 | - | 2 | - | - | 3 | 2 | - | 2 | 1 | 1 | 1 |
| Butyric anhydride | - | - | - | - | - | - | - | - | 2 | - | 1 | - | 1 |
| Cadmium acetate | 3 | 3 | 2 | 2 | - | - | - | 1 | - | - | 1 | 1 | 1 |
| Calcium acetate | 3 | 3 | 2 | 1 | 2 | 2 | - | 1 | 3 | 3 | 1 | 1 | 1 |
| Calcium aluminate | 1 | 1 | 1 | 1 | - | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Calcium Bichromate | - | - | 2 | 1 | 2 | - | - | 1 | 1 | - | 1 | - | 1 |
| Calcium bisulphite | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Calcium carbonate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Calcium chloride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Calcium hydroxide | 2 | 1 | 1 | 1 | 1 | - | - | 1 | 2 | 1 | 1 | 1 | 1 |
| Calcium hypochlorite | 3 | 3 | 2 | 1 | 2 | - | 3 | 1 | - | - | 1 | 1 | 1 |
| Calcium nitrate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Calcium sulfide | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Calcium sulphate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Caprylic acid | 3 | 3 | - | 2 | - | - | - | 2 | - | - | 1 | 1 | 1 |
| Carbamide | - | - | - | 1 | - | - | - | 1 | - | - | 1 | 1 | 1 |
| Carbitol | - | - | 2 | 1 | 2 | 2 | - | 1 | - | - | 1 | 1 | 1 |
| Carbolic acid phenol | - | - | - | 2 | 2 | - | - | 1 | - | 1 | 1 | 1 | 1 |
| Carbon dioxide | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Carbon disulfide | 3 | 3 | 3 | 3 | - | - | - | - | - | 1 | 2 | 2 | 2 |
| Carbon tetrachloride | 3 | 3 | 3 | 3 | 3 | 3 | - | - | - | 1 | 1 | 2 | 1 |
| Carbon tetrafluoride | - | - | - | - | 2 | - | - | - | - | - | 1 | 1 | 1 |
| Carbonic acid | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | - | 1 | 1 | 1 |
| Castor oil | 2 | - | - | - | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Caustic potash | 2 | 1 | 1 | 1 | 1 | 2 | 2 | 1 | - | - | 1 | 1 | 1 |
| Caustic soda | 2 | 1 | 1 | 1 | 1 | 2 | 2 | 1 | - | - | 1 | 1 | 1 |
| Cellosolve | - | - | 2 | 1 | 1 | - | 2 | - | - | - | 1 | 1 | 1 |
| Cellosolve acetate | 3 | 3 | - | 2 | 2 | - | - | - | - | - | 1 | 1 | 1 |
| Chlorinated solvents | 3 | 3 | 3 | 3 | - | 3 | 3 | - | - | 1 | 1 | 1 | 1 |
| Chlorine (dry) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 2 | 1/2 |
| Chlorine (wet) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 2 | 1 |
| Chlorine trifluoride | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 2 | 1 |
| Chloroacetic acid | 3 | 3 | 2 | 1 | 2 | - | - | - | - | 3 | 1 | 1 | 1 |
| Chloroacetone | 3 | 3 | 2 | 1 | 2 | - | - | - | - | 3 | 1 | 1 | 1 |
| Chlorobenzene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | 1 | 1 | 1 | 1 |
| Chlorobenzol | 3 | 3 | 3 | - | - | - | - | - | - | 1 | 1 | 1 | 1 |
| Chlorobromomethane | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 |
| Chlorobutane | 3 | 3 | 3 | - | 2 | - | - | - | - | 1 | 2 | 2 | 1 |
| Chloroform | 3 | 3 | - | - | - | - | - | - | - | 1 | 2 | 2 | 1 |
| Chloropentane | 3 | 3 | 3 | 3 | 3 | 3 | - | - | - | 1 | 1 | 1 | 1 |
| Chlorosulfonic acid | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 1/2 |
| Chlorotoluene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 3 | 1/2 |
| Chrome plating solutio | 3 | 3 | - | 2 | - | - | - | - | - | 1 | 1 | 2 | 1 |
| Chromic acid | 3 | 3 | - | 2 | - | 3 | 3 | 2 | - | 1 | 1 | 1 | 1 |
| Chromosulfuric acid | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | 2 | 3 | 1 |
| Citric acid | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Coal oil | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 3 | 3 | 1 | 1 | 1 | 1 |
| Coal tar | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 3 | 3 | 1 | 1 | 1 | 1 |
| Coconut oil | 3 | 3 | 3 | 3 | 2 | 3 | 1 | - | - | - | 1 | 1 | 1 |
| Coke oven gas | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | - | 1 | 1 | 1 | 1 |
| Copper chloride | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 |
| Copper cyanide | 2 | 2 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Copper hydrate | - | - | - | 1 | 1 | - | - | - | 2 | - | 1 | 1 | 1 |
| Copper hydroxide | - | - | 2 | 1 | 1 | - | - | 1 | 2 | - | 1 | 1 | 1 |
| Copper nitrate | 1 | 2 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Copper sulphate | 1 | 2 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Corn oil | 3 | 3 | 3 | 3 | 1 | 2 | 1 | - | - | 1 | 1 | 1 | 1 |
| Cottonseed oil | 3 | 3 | 3 | 3 | 3 | - | - | - | - | 1 | 1 | 1 | 1 |
| Creosote | 3 | 3 | 3 | 3 | 3 | - | 2 | - | - | 1 | 1 | 1 | 1 |
| Cresols | 3 | 3 | 3 | 3 | 3 | 3 | - | 2 | - | 1 | 1 | 1 | 1 |
| Cresylic acid | 3 | 3 | 3 | 3 | 3 | 3 | - | - | - | 1 | 1 | 1 | 1 |
| Crotonaldehyde | 3 | 3 | 2 | 1 | 2 | 3 | - | 1 | - | 3 | 1 | 1 | 1 |
| Crude oil | 3 | 3 | 3 | 3 | 3 | 3 | 1 | - | - | 1 | 1 | 1 | 1 |
| Cumene | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 3 | 1 | 1 | 1 | 1 |
| Cupric carbonate | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Cupric nitrate | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Cupric sulphate | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Cutting oil | 3 | 3 | 3 | 3 | - | 2 | 1 | - | - | 1 | 1 | 1 | 1 |
| Cycloexane | 3 | 3 | 3 | 3 | - | - | 1 | 1 | - | - | 1 | 1 | 1 |
| Cycloexanol | 3 | 3 | - | 2 | - | - | - | 1 | - | 1 | 1 | 1 | 1 |
| Cycloexanone | 3 | 3 | 3 | 2 | 3 | 3 | 3 | 2 | 3 | 3 | 1 | 1 | 1 |
| Cyclopentane | 3 | 3 | 3 | 3 | 3 | 3 | - | 3 | 3 | 1 | 1 | 1 | 1 |
| Cyclopentanol | 3 | 3 | 2 | 1 | - | - | - | 1 | - | 2 | 1 | 1 | 1 |
| Cyclopentanone | 3 | 3 | - | 2 | - | - | - | 2 | - | 3 | 1 | 1 | 1 |
| Decahydronaphtalene | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 |
| Decalin | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 |
| Decanol | - | - | 2 | 1 | 2 | - | 1 | 1 | - | 2 | 1 | 1 | 1 |
| Decyl alcohol | 1 | 1 | 1 | 1 | 1 | - | - | 1 | - | - | 1 | 1 | 1 |
| Decyl aldehyde | - | - | 2 | 1 | 1 | - | - | - | - | 2 | 1 | 1 | 1 |
| Decyl butyl phthalate | 3 | 3 | - | 1 | 1 | - | 2 | - | - | 2 | 1 | 1 | 1 |
| Decyl carbinol | - | - | - | 2 | - | - | - | 1 | - | - | 1 | - | 1 |
| Denatured alcohol | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 2 | 1 | 1 | 1 |
| Detergents (water) | 2 | 2 | 1 | 1 | 1 | 2 | 1 | - | - | 1 | 1 | 1 | 1 |
| Developer sol. (photo) | 2 | 2 | - | - | 2 | 1 | 1 | - | 1 | - | 1 | 1 | 1 |
| Diacetone alcohol | 2 | 2 | - | 1 | 1 | - | - | 1 | 2 | 2 | 1 | 1 | 1 |
| Diamyl naphtalene | 3 | 3 | - | - | 2 | - | - | - | - | 2 | 1 | 1 | 1 |
| Diamyl Phenol | 3 | 3 | 3 | 3 | 3 | 3 | - | - | - | 1 | 1 | 1 | 1 |
| Diamylamine | 2 | 3 | 2 | 1 | 2 | - | - | 1 | - | - | 1 | 1 | 1 |
| Diamylene | 3 | 3 | 3 | - | 3 | 3 | - | - | - | 1 | 1 | 1 | 1 |
| Dibenzyl ether | 3 | 3 | 3 | 2 | 2 | - | - | - | - | - | 1 | - | 1 |
| Dibromobenzene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | 1 | 1 | 1 | 1 |
| Dibromoethane | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | 1 | 1 | 1 |
| Dibutyl amine | 3 | 3 | - | 2 | 3 | 3 | - | 1 | 3 | - | - | - | 1 |
| Dibutyl ether | 3 | 3 | - | 2 | 2 | - | - | 1 | - | - | 1 | 1 | 1 |
| Dibutyl Phthalate | 3 | 3 | - | 2 | 2 | - | 3 | - | 3 | - | 1 | 1 | 1 |
| Dibutyl sebacate | 3 | 3 | - | 1 | 2 | - | - | 1 | 3 | - | 1 | 1 | 1 |
| Dicalcium phosphate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Dichloroacetic acid | 3 | 3 | - | 2 | - | 3 | 3 | - | 3 | 3 | 1 | 1 | 1 |
| Dichlorobenzene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 |
| Dichlorobutane | 3 | 3 | 3 | 3 | 3 | 3 | - | - | 3 | 1 | 1 | - | 1 |
| Dichlorodifluorometh. | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | - | - | 1 |
| Dichloroethane | 3 | 3 | 3 | 3 | 3 | 3 | - | - | - | 1 | 1 | 1 | 1 |
| Dichloroethyl ether | 3 | 3 | 3 | - | 3 | 3 | 3 | 2 | 3 | - | 1 | 1 | 1 |
| Dichloroethylene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 2 | 1 |
| Dichlorohexane | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | - | 1 | 1 | 1 | 1 |
| Dichloromethane | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | - | 1 | 1 | 1 | 1 |
| Dichloropropane | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | - | 1 | 1 | - | 1 |
| Dichloropropene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | - | 1 | 2 | 2 | 1 |
| Diclhoropentane | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | - | 1 | 1 | - | 1 |
| Diesel oil | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | - | 1 | 1 | 1 | 1 |
| Diethanolamine | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 1 | 2 | - | 1 | 1 | 1 |
| Diethyl carbinol | - | - | 1 | 1 | 1 | - | - | 1 | - | - | 1 | 1 | 1 |
| Diethyl ether | 3 | 3 | - | 2 | - | - | - | 1 | - | 3 | 1 | 1 | 1 |
| Diethyl ketone | 3 | 3 | 2 | 1 | 2 | 3 | - | - | - | 3 | 1 | 1 | 1 |
| Diethyl oxalate | 1 | 1 | 1 | 1 | 1 | - | - | 1 | - | - | 1 | 1 | 1 |
| Diethyl phthalate | 3 | 3 | - | 1 | 2 | 3 | 2 | 2 | - | - | 1 | 1 | 1 |
| Diethyl sebacate | 3 | 3 | - | 1 | 2 | 3 | - | 2 | - | - | 1 | 1 | 1 |
| Diethyl sul fate | - | - | - | 2 | - | - | - | 1 | - | - | 1 | - | 1 |
| Diethylamine | 2 | 2 | 2 | 1 | 2 | - | - | 1 | - | - | 1 | 1 | 1 |
| Diethylamine | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 1 | 2 | - | 1 | 1 | 1 |
| Diethylbenzene | 3 | 3 | 3 | 3 | 3 | 3 | - | - | - | 1 | 1 | 1 | 1 |
| Diethylene glicol | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Dihydroxidietylether | - | - | 1 | 1 | 1 | - | - | 1 | 1 | - | 1 | 1 | 1 |
| Diisobutyl ketone | - | - | 2 | 1 | - | - | - | - | - | - | 1 | 1 | 1 |
| Diisodecyl phthalate | 3 | 3 | 2 | 1 | 1 | - | 3 | - | - | 3 | 1 | 1 | 1 |
| Diisooctyl adipate | 3 | 3 | 2 | 1 | 1 | - | 3 | - | - | 3 | 1 | 1 | 1 |
| Diisooctyl phthalate | 3 | 3 | 2 | 1 | 1 | - | 3 | - | - | 3 | 1 | 1 | 1 |
| Diisopropyl amine | 2 | 2 | - | 1 | 1 | - | - | 2 | 2 | - | 1 | 1 | 1 |
| Dimethyl amine | 2 | 2 | 2 | 1 | 1 | - | 2 | 2 | - | - | 1 | 1 | 1 |
| Dimethyl benzene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 |
| Dimethyl carbinol | 2 | 2 | 1 | 1 | 1 | - | 2 | 1 | 1 | 3 | 1 | 1 | 1 |
| Dimethyl ether | 3 | 3 | - | 2 | - | - | - | 1 | - | 3 | 1 | 1 | 1 |
| Dimethyl formamide | - | - | - | 2 | 2 | - | - | 2 | - | - | 1 | 1 | 1 |
| Dimethyl ketone | 3 | 3 | - | 1 | - | - | - | 1 | - | 3 | 1 | 1 | 1 |
| Dimethyl phenol | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | - | - | 1 |
| Dimethyl phthalate | 3 | 3 | - | 2 | 2 | - | - | 1 | - | 2 | 1 | 1 | 1 |
| Dimethyl sul fate | 3 | 3 | - | 3 | 3 | - | - | 1 | - | - | 1 | 1 | 1 |
| Dimethyl sulfoxyde | 3 | 3 | - | - | - | - | - | - | - | - | 1 | 1 | 1 |
| Dinitrobenzene | 3 | 3 | - | 2 | 2 | - | - | - | - | 1 | 1 | 1 | 1 |
| Dioctyl adipate | 3 | 3 | - | 1 | 1 | - | 2 | - | - | 2 | 1 | 1 | 1 |
| Dioctyl phthalate | 3 | 3 | - | 1 | 1 | - | - | - | - | 2 | 1 | 1 | 1 |
| Dioxane | 3 | 3 | 2 | 2 | 2 | - | 3 | 2 | - | 3 | 1 | 1 | 1 |
| Dioxolane | 3 | 3 | 3 | 2 | 3 | - | - | 2 | - | 3 | 1 | 1 | 1 |
| Dipentene | 3 | 3 | - | - | - | - | - | 2 | - | 1 | - | - | 1 |
| Diphenyl phthalate | 3 | 3 | - | 1 | - | - | - | - | - | - | 1 | 1 | 1 |
| Dipropylamine | 2 | 2 | 2 | 1 | 1 | - | 2 | 1 | 2 | - | 1 | 1 | 1 |
| Dipropylene glicol | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Disodium phosphate | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Divinyl benzene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 |
| Dodecyl benzene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 |
| Dowper | 3 | 3 | 3 | 3 | 3 | - | 2 | - | - | 1 | 1 | 1 | 1 |
| Dowtherm A and E | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | 1 | 1 | 1 | 1 |
| Dry cleaning fluids | - | - | - | - | - | - | 2 | - | - | 1 | - | - | 1 |
| Ethanol | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
| Ethanol amine | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 1 | 3 | 3 | 1 | 1 | 1 |
| Ethyl acetate | 3 | 3 | - | 2 | 2 | 3 | 3 | 2 | 3 | 3 | 1 | 1 | 1 |
| Ethyl acetoacetate | 3 | 3 | - | 2 | 2 | 3 | 3 | 2 | 3 | 3 | 1 | 1 | 1 |
| Ethyl acetone | 3 | 3 | - | 1 | 2 | 3 | 3 | 2 | 3 | 3 | 1 | 1 | 1 |
| Ethyl acrylate | 3 | 3 | - | 2 | 2 | 3 | 3 | 2 | 3 | 3 | 2 | 1 | 1 |
| Ethyl Al dichloride | 3 | 3 | - | - | - | - | - | - | - | 2 | 1 | 1 | 1 |
| Ethyl aldehyde | - | - | 2 | 1 | 1 | - | - | - | - | 3 | 1 | 1 | 1 |
| Ethyl amine | - | - | 2 | 1 | 1 | 2 | - | 1 | - | - | 1 | 1 | 1 |
| Ethyl benzene | 3 | 3 | 3 | 3 | 3 | 3 | 2/3 | 3 | 3 | 1 | 1 | 1 | 1 |
| Ethyl bromide | 3 | 3 | 3 | 3 | 3 | 3 | 2/3 | - | - | 1 | 1 | 1 | 1 |
| Ethyl butyl acetate | 3 | 3 | 2 | 1/2 | 1/2 | - | - | 2 | - | 3 | 1 | 1 | 1 |
| Ethyl butyl alcohol | 1/2 | 1/2 | 1 | 1 | 1 | - | 1/2 | 1/2 | 1 | 2 | 1 | 1 | 1 |
| Ethyl butyl amine | 2 | 2 | 1/2 | 1 | 1 | - | 2 | 1 | 2 | 2 | 1 | 1 | 1 |
| Ethyl butyl ketone | 3 | 3 | 2 | 1/2 | 1/2 | - | - | - | 2 | 3 | 1 | 1 | 1 |
| Ethyl butyrate | 3 | 3 | - | 1/2 | - | - | - | - | - | 3 | 1 | 1 | 1 |
| Ethyl cellulose | 2 | 2 | 2 | 1/2 | 2 | 2 | - | 1/2 | 2 | 3 | 1 | 1 | 1 |
| Ethyl chloride | 3 | 3 | 3 | 2/3 | 2/3 | - | - | 2/3 | - | 1/2 | 1 | 1 | 1 |
| Ethyl dichloride | 3 | 3 | 3 | 3 | 3 | - | - | 2/3 | - | 2 | 1 | 1 | 1 |
| Ethyl ether | 3 | 3 | - | 2 | - | - | - | 1/2 | - | 3 | 1 | 1 | 1 |
| Ethyl formate | 3 | 3 | - | 2 | 2 | 2 | - | 1/2 | 3 | 3 | 1 | 1 | 1 |
| Ethyl iodide | 3 | 3 | - | - | - | - | - | 2/3 | - | 2 | 2 | 2 | 1 |
| Ethyl phthalate | - | - | - | 2/3 | - | - | - | 2 | - | - | 1 | 1 | 1 |
| Ethylbutyraldehyde | 3 | 3 | - | 1 | 1 | - | - | 1/2 | 3 | 3 | 1 | 1 | 1 |
| Ethylene chlorohydrine | 2/3 | 2/3 | - | 2 | 2 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 1 |
| Ethylene diamine | 2 | 2 | 1/2 | 1 | 1 | 1 | - | 2 | 2 | 3 | 1 | 1 | 1 |
| Ethylene dibromide | 3 | 3 | 3 | 2/3 | 3 | 3 | - | 2/3 | 3 | 1/2 | 2 | 2 | 1 |
| Ethylene dichloride | 3 | 3 | 3 | 3 | 3 | 3 | - | 3 | 3 | 1/2 | 2 | 2 | 1 |
| Ethylene glycol | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Ethylene oxide gas | - | - | 3 | 3 | 3 | - | - | - | - | 3 | 1 | 1 | 1 |
| Fatty acids | 3 | 3 | 3 | 3 | 3 | 2/3 | 2/3 | 2 | 3 | 1 | 1 | 1 | 1 |
| Ferric bromide | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Ferric chloride | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Ferric nitrate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Ferric sulfate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Ferrous acetate | 3 | 3 | 2 | 1/2 | 1/2 | - | - | - | 3 | 3 | 1 | 1 | 1 |
| Ferrous chloride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Ferrous hydroxide | 2/3 | 2/3 | 1/2 | 1 | 1 | - | - | - | 2 | 2 | 1 | 1 | 1 |
| Ferrous sulfate | 1 | 1 | 1 | 1 | 1 | 1 | 1/2 | 1 | 1 | 1 | 1 | 1 | 1 |
| Fluoboric acid | 2 | 2 | 1 | 1 | 1 | 2 | - | 1 | 1 | 2 | 1 | 1 | 1 |
| Fluorine gas | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1/2 | 1 | 1 | 1/2 |
| Fluorobenzene | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 |
| Fluosilicic acid | 2 | 2 | 1 | 1 | 1 | - | - | 1 | 1 | - | 1 | 1 | 1 |
| Formaldehyde | 2 | 2 | - | 1 | 1 | 3 | 3 | 1 | 1 | 2 | 1 | 1 | 1 |
| Formalin | 2 | 2 | 1 | 1 | 1 | - | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Formic acid | 2 | 2 | 1 | 1 | 1 | - | - | 1 | 2 | 3 | 1 | 1 | 1 |
| Freon 12 | 3 | 3 | 3 | 3 | 3 | 2 | - | 1 | 3 | 2 | 1 | 2 | 1 |
| Freon 22 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 3 | 3 | 1 | 2 | 1 |
| Freon SO2 | - | - | - | 1 | - | 2 | - | - | - | - | 1 | 1 | 1 |
| Fuel B (ASTM) | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 3 | 3 | 1 | 1 | 1 | 1 |
| Fuel C (ASTM) | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 3 | 3 | 1 | 1 | 1 | 1 |
| Fuel oil | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 2 | 3 | 1 | 1 | 1 | 1 |
| Furan | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 3 | - | 1 | 1 | 1 |
| Furfural | 3 | 3 | 3 | - | 2 | 3 | 3 | 1 | - | 3 | 1 | 1 | 1 |
| Furfuryl alcohol | 3 | 3 | 3 | 2 | 2 | 3 | 3 | 1 | - | 2 | 1 | 1 | 1 |
| Gallic acid | - | - | 2 | 2 | 2 | 3 | 3 | 1 | 3 | 3 | 1 | 1 | 1 |
| Gas, coke | 3 | 3 | - | - | - | - | 2 | - | 1 | - | - | - | 1 |
| Gas, liquified petrol | 3 | 3 | 3 | 3 | 3 | 3 | 2 | - | - | - | 1 | 1 | 1 |
| Gasoline | 3 | 3 | 3 | 3 | 3 | - | 1 | 2 | 3 | 1 | 1 | 1 | 1 |
| Gluconic acid | 3 | 3 | - | 2 | - | - | 3 | 1 | 2 | - | 1 | 1 | 1 |
| Glucose | 1 | 1 | 2 | 1 | 1 | 2 | 2 | 2 | 1 | - | 1 | 1 | 1 |
| Glycerine | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Glycil alcohol | - | - | - | 1 | - | - | - | 1 | - | - | 1 | 1 | 1 |
| Glycolic acid | - | - | - | 2 | - | - | - | 1 | - | - | 1 | 1 | 1 |
| Glycols | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Grease | 3 | 3 | 3 | 3 | 3 | 2 | 1 | - | - | 1 | 1 | 1 | 1 |
| Green sulphate liquor | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 |
| Halon 1211 | - | - | - | - | - | 1 | 1 | - | - | - | - | 1 | 1 |
| Helium | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Heptanal | 3 | 3 | - | 1 | 1 | - | - | 2 | 3 | - | 1 | 1 | 1 |
| Heptane | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | - | 1 | 1 | 1 | 1 |
| Heptane carboxyl.acid | 3 | 3 | - | 2 | - | - | - | 1 | 2 | - | 1 | 1 | 1 |
| Hexaldehyde | 3 | 3 | 1 | 1 | 2 | 2 | - | - | 3 | 3 | 1 | 1 | 1 |
| Hexane | 3 | 3 | 3 | 3 | 3 | - | 1 | 2 | 3 | 1 | 1 | 1 | 1 |
| Hexanol | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
| Hexene | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 1 | 2 | 1 | 1 | 1 | 1 |
| Hexyl alcohol | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
| Hexyl methyl ketone | 3 | 3 | - | 2 | 2 | - | 3 | 2 | 3 | 3 | 1 | 1 | 1 |
| Hexylamine | 2 | 2 | - | - | 1 | - | 2 | 2 | 3 | - | 1 | 1 | 1 |
| Hexylene glycol | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Hydraulic oil | 3 | 3 | 3 | 3 | 3 | - | 1 | 1 | 2 | 1 | 1 | 1 | 1 |
| Hydrazine | 3 | 3 | 3 | 3 | 2 | 2 | 3 | 3 | 1 | - | 1 | 1 | 1 |
| Hydrobromic acid | 3 | 1 | 1 | 1 | 1 | 3 | 3 | 1 | 1 | 3 | 1 | 1 | 1 |
| Hydrocl. ac.37%(cold) | 3 | 2 | 1 | 1 | 2 | - | - | 1 | 2 | 1 | 1 | 1 | 1 |
| Hydrocl. ac.37%(hot) | 3 | 3 | 3 | 2 | 3 | - | - | 1 | 3 | 2 | 1 | 1 | 1 |
| Hydrocloric acid 15% | 3 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Hydrocyanic acid | 3 | 3 | - | - | 2 | 2 | - | 3 | 3 | - | 1 | 1 | 1 |
| Hydrofluoric acid cold | 3 | 3 | 3 | 2 | 1/2 | - | - | 1 | 1 | - | 1 | 1 | 1 |
| Hydrofluoric acid hot | 3 | 3 | 3 | 3 | 3 | - | - | 1 | 3 | - | 1 | 1 | 1 |
| Hydrofluosilicic acid | 3 | 3 | 2 | 1 | 1/2 | 3 | - | 1 | 1 | - | 1 | 1 | 1 |
| Hydrogen dioxide 10% | 3 | 3 | - | 2 | 2 | - | - | 1 | 2 | 1 | 1 | 1 | 1 |
| Hydrogen gas | 2 | 2 | - | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 1 |
| Hydrogen perox. >10% | 3 | 3 | - | 3 | 3 | - | - | 1 | 3 | 1 | 1 | 1 | 1 |
| Hydrogen perox. 10% | 3 | 3 | - | 2 | 2 | - | - | 1 | 2 | 1 | 1 | 1 | 1 |
| Hydrogen sulfide | 3 | 3 | 2 | 1 | 2 | - | 3 | 2 | 3 | 3 | 1 | 1 | 1 |
| Iodine | 3 | 3 | 3 | 3 | 3 | - | - | 1 | 1 | 3 | 1 | 1 | 1 |
| Iron acetate | 3 | 3 | 2 | 1 | 2 | - | - | - | - | 3 | 1 | 1 | 1 |
| Iron salts | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Isoamyl acetate | 3 | 3 | 2 | 1 | 2 | - | - | - | - | 3 | 1 | 1 | 1 |
| Isoamyl alcohol | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
| Isoamyl bromide | 3 | 3 | 3 | 2 | - | - | - | - | - | 1 | 1 | 1 | 1 |
| Isobutane | 3 | 3 | 3 | 3 | 3 | - | 1 | - | - | 1 | 1 | 1 | 1 |
| Isobutyl acetate | 3 | 3 | - | 2 | - | 3 | - | 3 | 3 | 3 | 1 | 1 | 1 |
| Isobutyl aldehyde | 3 | 3 | 2 | 1 | 1 | - | 3 | - | 2 | 3 | 1 | 1 | 1 |
| Isobutyl amine | 2 | 2 | 1 | 1 | 1 | - | 2 | 1 | 2 | - | 1 | 1 | 1 |
| Isobutyl bromide | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 1 | - | 1 |
| Isobutyl carbinol | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Isobutyl cloride | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 1 | - | 1 |
| Isobutyl ether | 3 | 3 | - | 2 | 2 | 3 | 3 | 2 | 3 | - | 1 | 1 | 1 |
| Isobutylene | 3 | 3 | 3 | - | 3 | 3 | 2 | - | 3 | 1 | 1 | 1 | 1 |
| Isooctane | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 3 | 1 | 1 | 1 | 1 |
| Isopentane | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 3 | 1 | 1 | 1 | 1 |
| Isopropanol amine | 2 | 2 | - | 1 | 1 | - | 2 | 1 | 3 | - | 1 | 1 | 1 |
| Isopropyl acetate | 3 | 3 | - | 2 | 2 | 3 | 3 | - | 3 | 3 | 1 | 1 | 1 |
| Isopropyl alcohol | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
| Isopropyl amine | 2 | 2 | 1 | 1 | 1 | - | 2 | 1 | 3 | - | 1 | 1 | 1 |
| Isopropyl benzene | 3 | 3 | 3 | 3 | 3 | 3 | - | - | 3 | 1 | 1 | 1 | 1 |
| Isopropyl ether | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | 3 | 3 | 1 | 1 | 1 |
| Isopropyl toluene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 |
| Jet fuels | 3 | 3 | 3 | 3 | 3 | 3 | 1 | - | 3 | 1 | 1 | 1 | 1 |
| Kerosene | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | 3 | 1 | 1 | 1 | 1 |
| Ketones | 3 | 3 | 1 | 1 | 1 | 3 | 3 | - | 3 | 3 | 1 | 1 | 1 |
| Lactic acid (cold) | 2 | 2 | - | 1 | 1 | 1 | 3 | - | 2 | 1 | 1 | 1 | 1 |
| Lactic acid (hot) | 3 | 3 | - | - | - | - | - | - | - | 3 | 2 | 2 | 1/2 |
| Laquers solvents | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 |
| Lard | 3 | 3 | - | 2 | 1/2 | 1 | 1 | 1 | 3 | 3 | 1 | 1 | 1 |
| Lauryl alcohol | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
| Lauryl alcohol | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
| Lavender oil | 3 | 3 | 3 | 3 | 3 | 3 | 2 | - | 3 | 1 | 1 | 1 | 1 |
| Lead acetate | 3 | 2 | 2 | 1 | 2 | 1 | 2 | 1 | 3 | 3 | 1 | 1 | 1 |
| Lead sulfate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Lime bleach | 2 | 2 | 1 | 1 | 1 | 2 | 1 | - | 2 | 1 | 1 | 1 | 1 |
| Lime sulfur | 3 | 3 | 1 | 1 | 1 | 1 | 3 | - | 1 | 1 | 1 | 1 | 1 |
| Linoleic acid | 3 | 3 | 3 | - | - | - | 2 | - | - | 2 | 1 | 1 | 1 |
| Linseed oil | 3 | 3 | - | 2 | 2 | - | 1 | 1 | - | 1 | 1 | 1 | 1 |
| Liquid Petroleum Gas | 3 | 3 | 3 | 3 | 3 | - | 1 | 2 | - | 1 | 1 | 1 | 1 |
| Lubricating oils | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 2 | - | 1 | 1 | 1 | 1 |
| Lye solutions | 2 | 2 | 1 | 1 | 1 | - | - | 1 | 1 | 2 | 1 | 1 | 1 |
| M.E.K. | 3 | 3 | 2 | 1 | 2 | - | - | 3 | 3 | 3 | 1 | 1 | 1 |
| Magnesium acetate | 3 | 3 | - | 2 | 2 | - | - | 1 | - | - | 1 | 1 | 1 |
| Magnesium chloride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Magnesium hydrate | 2 | 2 | - | 1 | 1 | - | 2 | 1 | 2 | - | 1 | 1 | 1 |
| Magnesium hydroxide | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 1 | 2 | 2 | 1 | 1 | 1 |
| Magnesium sulfate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Maleic acid | 3 | 3 | 3 | 2 | - | 3 | 3 | 3 | 3 | - | 1 | 1 | 1 |
| Maleic anhydride | 3 | 3 | 3 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 |
| Malic acid | 3 | 2 | - | 2 | - | - | - | 2 | 2 | 1 | 1 | 1 | 1 |
| Manganese sulphate | 2 | 2 | 1 | 1 | 1 | - | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Manganese sulphite | 2 | 2 | 1 | 1 | 1 | - | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Mercury | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Mesityl oxide | 3 | 3 | 2 | 2 | - | - | - | 2 | - | - | 1 | 1 | 1 |
| Methallyl alcohol | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 3 | 1 | 1 | 1 |
| Methanecarboxylic acd | 3 | 3 | 3 | - | - | 2 | - | 1 | - | - | 1 | 1 | 1 |
| Methanoic acid | 3 | 3 | - | 2 | - | - | - | 1 | - | - | 1 | 1 | 1 |
| Methanol | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
| Methoxy ethanol | 3 | 3 | - | 2 | - | - | - | 1 | - | - | 1 | 1 | 1 |
| Methyl 1,2-pentanediol | 3 | 3 | - | - | - | - | - | 1 | - | - | 1 | 1 | 1 |
| Methyl acetate | 3 | 3 | 2 | 1 | 2 | - | - | 1 | 3 | 3 | 1 | 1 | 1 |
| Methyl acetone | 3 | 3 | 2 | 1 | 2 | - | - | 1 | 3 | 3 | 1 | 1 | 1 |
| Methyl alcohol | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
| Methyl allyl acetate | 3 | 3 | - | 2 | - | - | - | - | - | 3 | 1 | 1 | 1 |
| Methyl allyl alcohol | - | - | - | 2 | - | - | - | 1 | - | - | 1 | 1 | 1 |
| Methyl allyl chloride | 3 | 3 | - | 2 | - | - | - | 3 | - | 3 | 1 | 2 | 1 |
| Methyl amyl acetate | 3 | 3 | - | 2 | - | - | - | 3 | - | 3 | 1 | 2 | 1 |
| Methyl amyl carbinol | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | 3 | 1 | 1 | 1 |
| Methyl benzene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 2 | 1 |
| Methyl bromide | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 2 | 1 |
| Methyl butane | 3 | 3 | 3 | 3 | 3 | - | 2 | 1 | - | - | 1 | - | 1 |
| Methyl butanol | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Methyl butyl ketone | 3 | 3 | 2 | 1 | 2 | - | - | - | - | 3 | 1 | 1 | 1 |
| Methyl carbitol | 3 | 3 | - | 2 | - | - | - | 1 | - | 3 | 1 | 1 | 1 |
| Methyl cellosolve | 3 | 3 | 2 | 1 | 2 | - | 3 | 1 | 3 | 3 | 1 | 1 | 1 |
| Methyl chloride | 3 | 3 | 3 | 3 | 3 | 3 | 2/3 | 3 | 3 | 1/2 | 1/2 | 1/2 | 1/2 |
| Methyl cyclohexane | 3 | 3 | 3 | 3 | 3 | 3 | 2/3 | 3 | 3 | 1/2 | 1/2 | 1/2 | 1 |
| Methyl ethyl ketone | 3 | 3 | 2 | 1 | 2 | - | - | 3 | 3 | 3 | 1 | 1 | 1 |
| Methyl hexanol | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
| Methyl hexanone | 3 | 3 | 2 | 1 | 1/2 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 |
| Methyl isobut carbinol | 2 | 2 | 1 | 1 | 1 | - | - | 1 | 3 | 3 | 1 | 1 | 1 |
| Methyl isobutyl cheton | 3 | 3 | 3 | 2 | 2 | 3 | 3 | - | - | 3 | 1 | 1 | 1 |
| Methyl methacrylate | 3 | 3 | 3 | 3 | 3 | - | - | - | 3 | 3 | 1 | 1 | 1 |
| Methyl n amyl chetone | 3 | 3 | - | 1/2 | 1/2 | - | - | - | - | 3 | 1 | 1 | 1 |
| Methyl propyl ether | 3 | 3 | - | 2 | 2 | - | - | - | - | 3 | 1 | 1 | 1 |
| Methyl salicylate | 3 | 3 | - | 1/2 | 1/2 | - | - | - | - | 3 | 1 | 1 | 1 |
| Methyl ter butyl ether | 3 | 3 | - | 2 | 2 | - | - | - | - | 3 | 1 | 1 | 1 |
| Methylene bromide | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | 2 | 2 | 1/2 |
| Methylene bromide | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1/2 | 1/2 | 1/2 | 1 |
| Methylene chloride | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1/2 | 1/2 | 1/2 | 1/2 |
| Methylene chloride | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | 2 | 2 | 1/2 |
| Mineral spirits | 3 | 3 | 3 | - | - | 2 | 1 | - | - | - | 1 | 1 | 1 |
| Molten sulphur | 2 | 2 | 2 | 1/2 | 2 | - | 3 | 1 | 2 | - | - | - | 1 |
| Monobutyl ether | 3 | 3 | 3 | 2 | 2 | - | - | - | - | 3 | 1 | 1 | 1 |
| Monochloroacetic acid | 3 | 2 | - | 2 | - | - | 3 | 1 | 3 | 3 | 1 | 1 | 1 |
| Monochlorobenzene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1/2 | 1/2 | 1 |
| Monoclhorodifluormet | 3 | 3 | 3 | - | 2 | 3 | - | - | - | - | 1/2 | 1/2 | 1 |
| Monoethanol amine | 2 | 1 | 1 | 1 | 1 | - | 2 | - | 2 | 3 | 1 | 1 | 1 |
| Monoethyl amine | - | - | 2 | 1/2 | 2 | - | - | 1 | 2 | - | 1 | 1 | 1 |
| MTBE (ter butyl metil Ether) | 3 | 3 | - | 2 | - | - | - | 3 | - | 3 | 1 | - | 1 |
| Muriatic acid | - | 1 | 2 | 2 | 2 | - | - | 1 | - | 1 | 1 | 1 | 1 |
| Naphta | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | - | 1 | 1 | 1 | 1 |
| Naphtalene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 2 | 1 | 1 | 1 |
| Naphtenic acid | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 3 | 1 | 1 | 1 | 1 |
| Natural gas | 3 | 3 | 3 | 3 | 3 | 3 | 1/2 | - | 2 | 1 | 1 | 1 | 1 |
| Neohexane | 3 | 3 | 3 | 3 | 3 | 3 | 1/2 | 2 | - | 1 | 1 | 1 | 1 |
| Nickel acetate | 2 | 2 | - | 1 | 2 | - | 2 | - | - | 3 | 1 | 1 | 1 |
| Nickel chloride | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Nickel nitrate | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Nickel sulphate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Nitric acid ? fuming | 3 | 3 | 3 | 3 | 3 | 3 | - | - | 3 | 2/3 | 3 | 3 | 1/2 |
| Nitric acid 10% | 3 | 3 | 2 | 1 | 1 | - | - | - | 1 | 1 | 1 | 1 | 1 |
| Nitric acid 20% | 3 | 3 | 3 | 1 | 2 | - | - | - | 2 | 1 | 1 | 1 | 1 |
| Nitric acid 30% | 3 | 3 | 3 | 2 | 2 | - | - | - | 3 | 1 | 1 | 1 | 1 |
| Nitric acid 40% | 3 | 3 | 3 | 2 | 3 | 3 | - | - | 3 | 1 | 1 | 1 | 1 |
| Nitric acid 40-60% | 3 | 3 | 3 | 3 | 3 | 3 | - | - | 3 | 2 | 2 | 2 | 1 |
| Nitrobenzene | 3 | 3 | 3 | 3 | 3 | 3 | - | - | 3 | 2 | 1 | 1 | 1 |
| Nitrocellulose | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 |
| Nitrogen gas | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Nitromethane | 3 | 2 | 2 | 1 | 1 | - | - | - | 3 | - | 1 | 1 | 1 |
| Nitropropane | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 |
| Nitrous oxide gas | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | - | 1 | 1 | 1 |
| Nonenes | 3 | 3 | 3 | 3 | 3 | - | 1/2 | - | - | 1 | 1 | 1 | 1 |
| Octadecanoic acid | 3 | 3 | 3 | 3 | 3 | - | 1/2 | 2 | - | - | 1 | 1 | 1 |
| Octane | 3 | 3 | 3 | 3 | 3 | - | 1 | - | - | 1 | 1 | 1 | 1 |
| Octanol | 2 | 2 | 2 | 1 | 2 | - | 2 | 1 | 2 | 2 | 1 | 1 | 1 |
| Octyl acetate | 3 | 3 | 2 | 2 | 2 | - | - | 3 | 3 | 3 | 1 | 1 | 1 |
| Octyl alcohol | 2 | 2 | 2 | 1 | 2 | - | - | 1 | - | 2 | 1 | 1 | 1 |
| Octyl aldehyde | 3 | 3 | - | 1 | 2 | - | - | 1 | 3 | 3 | 1 | 1 | 1 |
| Octyl amine | 2 | 2 | 2 | 1 | 2 | - | - | 2 | 3 | 3 | 1 | 1 | 1 |
| Octyl carbinol | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
| Octylene glycol | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Oil ? petroleum | 3 | 3 | 3 | 3 | 3 | 2/3 | 1 | - | 2/3 | 1 | 1 | 1 | 1 |
| Oleic acid | 3 | 3 | - | 2 | - | - | 2 | 1 | 3 | 2 | 1 | 1 | 1 |
| Oleum | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 3 | 1/2 |
| Olive oil | 3 | 3 | - | 2 | 1 | 1 | 1 | 2 | 3 | 1 | 1 | 1 | 1 |
| Orthodiclorobenzene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1/2 | 1/2 | 1 |
| Orthodiclorobenzol | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1/2 | 1/2 | 1/2 | 1 |
| Orthoxylene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 |
| Oxalic acid | 3 | 3 | 1 | 1 | 1 | 3 | 3 | 1 | 3 | 3 | 1 | 1 | 1 |
| Oxygen | 2 | 2 | 1 | 1 | 1 | - | 2 | 1 | 1 | 1 | 1 | 1 | 1 |
| Ozone | 3 | 3 | 1 | 1 | 1/2 | 2 | 3 | 1 | 2 | 3 | 1 | 1 | 1 |
| Paint | 3 | 3 | 2 | 2 | - | - | 2 | - | - | 2 | 1 | 1 | 1 |
| Palmitic acid | 3 | 3 | - | 2 | 2 | - | 1 | 1 | 3 | 3 | 1 | 1 | 1 |
| Papermakers alum | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Paraffin | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | 3 | 1 | 1 | 1 | 1 |
| Paraldehyde | 3 | 3 | - | 1/2 | 1/2 | 3 | 3 | - | - | 3 | 1 | 1 | 1 |
| Paraxylene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1/2 | 1/2 | 1 |
| Pelargonic acid | 3 | 3 | - | 1 | 1 | - | 2 | 1 | 3 | - | 1 | 1 | 1 |
| Pentachloroethene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 |
| Pentadione | 3 | 3 | - | 2 | - | - | - | 2 | 3 | 3 | 1 | 1 | 1 |
| Pentane | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | 3 | 1 | 1 | 1 | 1 |
| Pentanone | 3 | 3 | - | 2 | - | - | - | - | 3 | 3 | 1 | 1 | 1 |
| Pentasol | 1 | 1 | - | 1 | 1 | - | - | - | 1 | 1 | 1 | 1 | 1 |
| Perchloric acid | 3 | 3 | - | 2 | - | 3 | 3 | - | 2 | 1 | 1 | 1 | 1 |
| Perchloroethylene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 |
| Petroleum crude | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 3 | 1 | 1 | 1 | 1 |
| Petroleum ether | 3 | 3 | 3 | 3 | 3 | 3 | 1/2 | 1/2 | 3 | 1 | 1 | 1 | 1 |
| Petroleum oils | 3 | 3 | 3 | 3 | 3 | - | 1 | - | 3 | 1 | 1 | 1 | 1 |
| Phenol | 3 | 3 | 3 | - | 2 | - | 3 | 1 | - | 1 | 1 | 1 | 1 |
| Phenolsulphonic acid | 3 | 3 | 3 | 2/3 | 2/3 | - | - | 1/2 | 3 | 3 | 1 | 1 | 1 |
| Phenyl chloride | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 |
| Phenylamine | - | - | - | 2/3 | - | - | - | 1/2 | - | - | 1/2 | 1/2 | 1 |
| Phenylhydrazine | 2 | 1/2 | 2 | 2 | 2 | 3 | 3 | - | 3 | 1 | 1/2 | 1/2 | 1 |
| Phosphoric acid 10% | 1 | 1 | 1 | 1 | 1 | 2 | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Phosphoric acid 10-85% | 3 | 2 | 1 | 1 | 1 | 2 | 3 | 1 | 1 | 1 | 1 | 1 | 1 |
| Picric acid (alcoholic) | 2 | 2 | 2 | - | 1/2 | - | - | 2 | 1 | 3 | 1 | 1 | 1 |
| Pine oil | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1/2 | 3 | 1 | 1 | 1 | 1 |
| Pinene | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 3 | 1 | 1 | 1 | 1 |
| Polyethylene glycol | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Polyol ester | 3 | 3 | 3 | 3 | - | - | 1/2 | - | - | 1/2 | 1 | 1 | 1 |
| Polypropylene glycol | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Potassium acetate | 3 | 3 | 1 | 1 | 2 | 2 | 2 | 1 | 3 | 3 | 1 | 1 | 1 |
| Potassium bisulfate | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | - | 1 | 1 | 1 |
| Potassium busulfite | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | - | 1 | 1 | 1 |
| Potassium carbonate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Potassium chloride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Potassium chromate | - | - | - | 1 | 1 | - | - | 1 | 2 | 1 | 1 | 1 | 1 |
| Potassium cyanide | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | - | 1 | 1 | 1 |
| Potassium dichromate | - | - | - | 1 | 1 | - | - | 1 | 2 | 1 | 1 | 1 | 1 |
| Potassium hydroxide | 2 | 2 | 1 | 1 | 1 | 3 | 3 | 1 | 2 | 3 | 1 | 1 | 1 |
| Potassium nitrate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Potassium pmanganate | - | - | - | - | - | - | - | 2 | 1 | - | 1 | 1 | 1 |
| Potassium silicate | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Propane | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 2 | 1 | 1 | 1 | 1 |
| Propanediol | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Propanol | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | 2 | 1 | 1 | 1 |
| Propanolamine | - | - | - | - | - | - | - | 1 | - | 3 | 1 | 1 | 1 |
| Propanone | - | - | - | 1 | 2 | - | - | 1 | - | 3 | 1 | 1 | 1 |
| Propenenitrile | - | - | - | - | - | - | - | 1 | - | - | - | - | 1 |
| Propionic acid | - | - | 2 | 1 | 2 | - | - | - | - | - | 1 | 1 | 1 |
| Propyl acetate | 3 | 3 | 2 | 1/2 | 2 | - | - | 1/2 | - | 3 | 1 | 1 | 1 |
| Propyl alcohol | 1 | 1 | 1 | 1 | 1 | - | 2 | 1 | 1 | - | 1 | 1 | 1 |
| Propyl aldehyde | 3 | 3 | 2 | 1 | 2 | - | - | 1 | - | 3 | 1 | 1 | 1 |
| Propyl benzene | 3 | 3 | 3 | 3 | 3 | - | 2/3 | - | - | 1 | 1 | 1 | 1 |
| Propyl chloride | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | - | 2 | 1 | 1/2 | 1 |
| Propyl ether | - | - | - | 2 | - | - | - | 1 | - | - | 1 | 1/2 | 1 |
| Propylene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | - | 1 | 1 | - | 1 |
| Propylene dichloride | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | 2 | 1 | 1/2 | 1 |
| Propylene glycol | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Red oil | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 1 |
| Resorcinol | - | - | - | - | - | - | - | - | - | 2 | 1 | 1/2 | 1 |
| Richfield A, 100% | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 |
| Richfield D, 33% | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 |
| Sea water | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Sewage | 2 | 2 | 3 | 3 | 2 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Silicate esters | - | - | - | - | - | 1 | 2 | 1 | - | - | 1 | 1 | 1 |
| Silicate of soda | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | - | 1 | 1 | 1 |
| Silicone grease | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Silicone oil | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Silver nitrate | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 |
| Skydrol 500B | - | - | - | 1 | 2 | 3 | - | 2 | 3 | 3 | 1 | 1 | 1 |
| Soap solutions | 2 | 2 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Soda ash | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Soda lime | 2 | 2 | 2 | 1 | 1 | - | - | 1 | 2 | 2 | 1 | 1 | 1 |
| Soda, caustic | 2 | 2 | 2 | 1 | 1 | - | - | 1 | 2 | 2 | 1 | 1 | 1 |
| Sodium acetate | 3 | 3 | 3 | 1 | 2 | - | - | 1 | 3 | 3 | 1 | 1 | 1 |
| Sodium aluminate | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | - | 1 | 1 | 1 |
| Sodium bicarbonate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Sodium bisulphate | 2 | 2 | 2 | 1 | 1 | - | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Sodium bisulphite | 2 | 2 | 2 | 1 | 1 | - | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Sodium borate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Sodium chloride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Sodium cyanide | 3 | 3 | 3 | 1 | 1 | 3 | 3 | 1 | 1 | - | 1 | 1 | 1 |
| Sodium dichromate | 3 | 3 | 3 | 1 | 1 | - | - | 1 | 2 | 3 | 1 | 1 | 1 |
| Sodium Hypochlorite | 3 | 3 | 3 | 2 | 2 | - | - | 1 | 2 | 2 | 1 | 1 | 1 |
| Sodium metaphosphate | 2 | 2 | 2 | 1 | 1 | 2 | 2 | 1 | 2 | - | 1 | 1 | 1 |
| Sodium nitrate | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Sodium perborate | 2 | 2 | 2 | 1 | 1 | 2 | 2 | 1 | 1 | - | 1 | 1 | 1 |
| Sodium peroxide | 2 | 2 | 2 | 1 | 1 | - | - | - | 2 | - | 1 | 1 | 1 |
| Sodium Silicate | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | - | 1 | 1 | 1 |
| Sodium Thiosulfate | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Soybean oil | 3 | 3 | 3 | 2 | 1 | 2 | 1 | - | 2 | 1 | 1 | 1 | 1 |
| Stannic chloride | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | - | 1 | 1 | 1 |
| Steam, max 176°C | 3 | 3 | 1 | 1 | 1/2 | 3 | 3 | - | - | 3 | 3 | 3 | 1 |
| Stearic acid | 3 | 3 | 2 | 1 | 2 | 2 | 2 | 1 | 3 | 3 | 1 | 1 | 1 |
| Stoddarts solvent | 3 | 3 | 3 | 3 | 3 | - | 1 | 1 | 3 | 1 | 1 | 1 | 1 |
| Styrene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 1 |
| Sulphamic acid | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 1 | 2 | 3 | 1 | 1 | 1 |
| Sulphonic acid | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | - | 1 | 1 | 1 |
| Sulphur | 3 | 3 | 3 | 2/3 | 2/3 | - | - | 2/3 | 2/3 | 2 | 1 | 1 | 1 |
| Sulphur dioxide | 3 | 3 | 2 | 2 | - | - | - | - | 2 | - | 1 | 1 | 1 |
| Sulphur trioxide | 3 | 3 | 3 | 3 | - | - | - | - | - | - | 3 | 3 | 1 |
| Sulphuric acid 25% | 3 | 2 | 1 | 1 | 1 | 2 | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Sulphuric acid 50% | 3 | 3 | 1 | 1 | 1 | - | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Sulphuric acid 75% | 3 | 3 | 2 | 1 | 2 | - | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Sulphuric acid 96% | 3 | 3 | 3 | 2 | 3 | - | - | 2 | 2 | - | 1/2 | 1 | 1 |
| Sulphuric acid 98% | 3 | 3 | 3 | 3 | 3 | - | - | 3 | 3 | - | 2 | 2 | 1 |
| Sulphuric acid –fuming | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 |
| Sulphurous acid 10% | 2 | 2 | 1 | 1 | 1 | - | - | 1 | 1 | - | 1 | 1 | 1 |
| Sulphurous acid 85% | 3 | 3 | 1 | 1 | 1 | - | - | 1 | 1 | - | 1 | 1 | 1 |
| Sulphydric acid (H2S) | 3 | 3 | 2 | 1 | 1 | - | 3 | 1 | 1 | - | 1 | 1 | 1 |
| Tall oil | 3 | 3 | 3 | 3 | 3 | 2 | 1 | - | 3 | 1 | 1 | 1 | 1 |
| Tallow | 3 | 3 | 3 | 3 | 3 | - | 1 | - | 3 | - | 1 | 1 | 1 |
| Tannic acid | 2 | 2 | 1 | 1 | 1 | - | - | 1 | 1 | - | 1 | 1 | 1 |
| Tar | 3 | 3 | 3 | 3 | 3 | 2/3 | 2 | - | - | 1 | 3 | 2 | 1 |
| Tartaric acid | 3 | 3 | 2 | 1 | 1 | 2 | 2 | 1 | 1 | - | 1 | 1 | 1 |
| Tertiary butyl alcohol | 2 | 2 | 1 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Tertiary butyl mercapt | 3 | 3 | 3 | 3 | 3 | - | - | - | - | 1 | - | - | 1 |
| Tetrachlorobenzene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1/2 | 2 | 1/2 | 1 |
| Tetrachloroetane | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 2 | 1 |
| Tetrachloroethylene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1/2 | 1 | 1 |
| Tetrachloromethane | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 |
| Tetrachloronaphtalene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1/2 | 1 | 1 | 1 |
| Tetrahydrofuran | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | 1/2 | 1 | 1 |
| Tin chloride | 2 | 2 | 2 | 1 | 1 | - | 2 | - | 1 | - | 1 | 1 | 1 |
| Toluene | 3 | 3 | 3 | 3 | 3 | - | 3 | - | - | 1 | 1/2 | 1/2 | 1 |
| Toluidine | 3 | 3 | 3 | 3 | 3 | - | 3 | - | - | 2 | 2 | 1 | 1 |
| Toluol | 3 | 3 | 3 | 3 | 3 | - | 3 | - | 3 | 1 | 1 | 1 | 1 |
| Transformer oil | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | - | 1 | 1 | 1 | 1 |
| Tributyl amine | 2 | 2 | - | 2 | 2 | 2 | 2 | 1 | 3 | - | 1 | 1 | 1 |
| Trichloroacetic acid | 3 | 3 | 2 | 1 | 2 | - | - | - | 3 | 3 | 1 | 1 | 1 |
| Trichlorobenzene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 1 |
| Trichloroethane | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1/2 | 1/2 | 1/2 | 1 |
| Trichloroethylene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1/2 | 2 | 2 | 1 |
| Trichloropropane | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | 1 |
| Tricresyl phosphate | 3 | 3 | - | 2 | 2 | - | - | 1/2 | 3 | 3 | 1 | 1 | 1 |
| Triethanolamine | 3 | 2 | 2 | 1/2 | 1/2 | 2 | 3 | 1 | 2 | 3 | 1 | 1 | 1 |
| Triethylamine | 3 | 3 | 2 | 2 | 2 | - | - | 1 | - | 3 | 1 | 1 | 1 |
| Triethylene glycol | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | 1 | 1 | 1 | 1 |
| Trimethylamine | 3 | 3 | - | - | - | - | - | 1 | - | 3 | 1 | 1 | 1 |
| Trinitrotoluene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | - | 2 | 2 | 1/2 | 1 |
| Trioctyl phosphate | 3 | 3 | - | 2 | 2 | - | - | 1 | - | - | 1 | 1 | 1 |
| Tung oil | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 1/2 | 2 | 1 | 1 | 1 | 1 |
| Turpentine | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | - | 1 | 1 | 1 | 1 |
| Urea | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 1 | 1 | - | 1 | 1 | 1 |
| Vegetable oils | 3 | 3 | 3 | 2/3 | 1 | - | 1 | 1 | 2 | 1 | 1 | 1 | 1 |
| Vinegar | 2 | 2 | 1 | 1 | 1 | - | 3 | 2 | 2 | 3 | 1 | 1 | 1 |
| Vinyl acetate | 3 | 3 | - | 2 | 2 | - | - | 1 | 3 | 3 | 1 | 1 | 1 |
| Vinyl benzene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 1/2 | 1 | 1 |
| Vinyl chloride | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 |
| Vinyl cyanide | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | - | 1/2 | 1/2 | 1 |
| Vinyl ether | 3 | 3 | 3 | - | 2 | - | - | - | - | - | 1 | 1 | 1 |
| Vinyl Trichloride | 3 | 3 | 3 | 3 | 3 | - | - | 2 | - | - | 1/2 | 1/2 | 1 |
| Water | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| White oil | 3 | 3 | 3 | 3 | 3 | 1/2 | 1 | - | - | - | 1 | 1 | 1 |
| Wines | 1 | 1 | - | - | 1 | - | 1 | - | - | - | 1 | 1 | 1 |
| Wood oil | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 1/2 | - | 1 | 1 | 1 | 1 |
| Xylene | 3 | 3 | 3 | 3 | 3 | 3 | 3 | - | - | 1 | 2 | 2 | 1 |
| Zinc acetate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Zinc chloride | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | 1 | 1 | 1 |
| Zinc chromate | - | - | - | 1 | - | - | - | - | - | - | 1 | 1 | 1 |
| Zinc sulphate | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |