EPA Method 8270C Pesticide Mix #6 Back Catalog number: 91007 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9351.6-250MG Isoniazid, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 54-85-3 Price on request 52085A QC Standard 2 Price on request 684882 Benzo[j]fluoranthene, 10µg/ml in Acetonitrile,10ml Price on request