EPA Method 525 Spike B Back Catalog number: 92313 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79058 Hexachlorobenzene, 1000µg/ml in Toluene, 1ml Price on request 1780.10-10MG 2-Aminonaphthalene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 91-59-8 Price on request X9184 Pronamide Price on request