EPA Method 551.1 Surrogate Standard Back Catalog number: 31102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 90748 Hexachlorobenzene, 100µg/ml in MeOH, 1ml Price on request 2809.11-10MG 8-Methyl-2-naphthol, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 19393-87-4 Price on request 3522.9-100-AN Trietazine Price on request