EPA Method 8260B Surrogate Standard Back Catalog number: 23012 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2002.12-10MG 2,3',4,4',5-Pentachlorobiphenyl, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 31508-00-6 Price on request 70563 Bromophos ethyl Price on request 674462 4-Chlorophenoxyacetic acid, 250mg Price on request