EPA Method 508 - Performance Check Solution Back Catalog number: 19132 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680917 Cumyluron, 10.0 µg/ml, Acetonitrile, 10ml Price on request 9526.33-10MG Candesartan cilexetil, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 145040-37-0 Price on request 95181 Hexachlorobenzene, 200µg/ml in MeOH, 1ml Price on request