EPA Method 551.1 Internal Standard Back Catalog number: 32103 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 83586 Pentachlorophenol Price on request 1811.12-5MG Decabromodiphenyl ether, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 1163-19-5 Price on request 30241R Aldicarb sulfone Price on request