EPA Method 525 Internals & Surrogates Back Catalog number: 91161 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678424 delta-HCH, 100 µg/ml, Acetonitrile, 5ml Price on request 675336 Acrylamide, 250mg Price on request 2151.5-1ML tert-Butyl methyl ether (methyl tert-butyl ether), neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 1634-04-4 Price on request