A - little or no action B - moderate action C - strong action S - unknown FLUID OR MATERIAL CONVEYED NR NBR EPDM HYPALON® Acetaldehyde B C B C Acetic Acid 10% B C A B Acetic Acid 50% C C B B Acetic Acid, glacial C C B C Acetic Anidride C C B B Acetone C C A C Acetone cyanohidrin S S A S Acetophenone S S B S Acetyl Acetone C C A C Acetyl chloride C C B C Acetylene A A A A Acetylene dichloride C C C C Acqua regia S S S S Acrolein C S B B Acrylonitrile S S C S Adipic acid S S B S Air 160 °C C C B C Air 60°C A A A A Allyl acetate S S S S Allyl Alcohol A A A A Allyl bromide S S S S Allyl chloride S S S S Aluminium acetate B C A B Aluminium chloride A A A A Aluminium fluoride B A A A Aluminium hydroxide A S S B Aluminium nitrate A A A A Aluminium sulfate A A A A Aminobenzene S S S S Aminoethanol B B A B Ammonia anhydrous C C C C Ammonia sol. 10% B S A A Ammonia sol. 50% B S A A Ammonium chloride A A A A Ammonium hidroxide B S B B Ammonium nitrate B A A A Ammonium phosphate A A A A Ammonium sulphate A A A A Ammonium sulphite A S A A Ammonium thiosulph. A S A A Amyl acetate C S C S Amyl acetone C S C S Amyl alcohol B S B S Amyl bromide C S B S Amyl chloride C S B S Amyl oleate S A S S Amyl phenol S S S S Amyl phthalate S S B S Amylamine B S S C Amylamine B S B S Anethole C C C S Aniline C S B S Animal fats C A C B Antimony pentachlorid S S S S Aromatic tar S B S S Arsenic acid B B A A Ascorbic acid S S S S Asphalt 130°C S C S S Asphalt 80°C S A S S ASTM FUEL A C A C B ASTM FUEL B C A C B ASTM FUEL C C A C C ASTM OIL n°1 C A C B ASTM OIL n°2 C A C B ASTM OIL n°3 C A C B