EPA Method 508 Surrogate Standard Back Catalog number: 19042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680444 gamma-HCH, 100 µg/ml, Methanol, 1ml Price on request 677370 Acenaphthene, 100 µg/ml, Acetonitrile, 1ml Price on request 10526.12-10MG Clenbuterol hydrochloride Price on request