EPA Method 508 - Performance Check Solution Back Catalog number: 19132 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 684882 Benzo[j]fluoranthene, 10µg/ml in Acetonitrile,10ml Price on request 9527.24-10MG Candesartan, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 139481-59-7 Price on request 679103 Paromomycin sulfate, 100mg Price on request