A - little or no action B - moderate action C - strong action S - unknown FLUID OR MATERIAL CONVEYED NR NBR EPDM HYPALON® Paint C B B S Palmitic acid C A S C Papermakers alum A A A A Paraffin C A C C Paraldehyde C C S S Paraxylene C C C C Pelargonic acid C B S C Pentachloroethene C C C C Pentadione C S S C Pentane C A C C Pentanone C S S C Pentasol A S S A Perchloric acid C C S B Perchloroethylene C C C C Petroleum crude C A C C Petroleum ether C A/B C C Petroleum oils C A C C Phenol C C C S Phenolsulphonic acid C S C C Phenyl chloride C C C C Phenylamine S S S S Phenylhydrazine A/B C B C Phosphoric acid 10% A S A A Phosphoric acid 10-85% B C A A Picric acid (alcoholic) B S B A Pine oil C C C C Pinene C B C C Polyethylene glycol A A A A Polyol ester C A/B C S Polypropylene glycol A A A A Potassium acetate C B A C Potassium bisulfate A S A A Potassium busulfite A S A A Potassium carbonate A A A A Potassium chloride A A A A Potassium chromate S S S B Potassium cyanide A S A A Potassium dichromate S S S B Potassium hydroxide B C A B Potassium nitrate A A A A Potassium pmanganate S S S A Potassium silicate A S A A Propane C A C B Propanediol A S A A Propanol A S A A Propanolamine S S S S Propanone S S S S Propenenitrile S S S S Propionic acid S S B S Propyl acetate C S B S Propyl alcohol A B A A Propyl aldehyde C S B S Propyl benzene C B/C C S Propyl chloride C C C S Propyl ether S S S S Propylene C C C S Propylene dichloride C C C S Propylene glycol A S A A Red oil C A C B Resorcinol S S S S Richfield A, 100% S S S S Richfield D, 33% S S S S