EPA Method 624 Internal / Surrogate Standard Back Catalog number: 92559 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C431700 a-Cholestane, 100mg Price on request 71608 Pentadecafluorooctanoic acid Price on request 14500-0211D-10CY1 Benzo(g,h,i)perylene-d12, 10µg/ml in CY, 1ml Price on request