EPA Method 526 Surrogate Standard Back Catalog number: 93187 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2512.8-100MG 4'-Chloroacetanilide, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 539-03-7 Price on request 70311 1-Chloronaphthalene, 1000µg/ml in MeOH, 1ml Price on request 10974.6-100MG Para-phenylenediamine,neat,neat,100mg, Price on request