EPA Method 632 Spike Standard Back Catalog number: 93970 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3603.32-5UG 17ß(H),21 alpha(H)-(22RS)-Bishomohopane , neat, Solvent-neat, Unit ca. 5µg, # of units-1, Cas.no. Price on request C20575000 Benzo[j]fluoranthene, 10mg Price on request 676039 D5-Propachlor OA, 100 µg/ml, Acetonitrile, 1ml Price on request