EPA Method 624Mix #1 - Purgeables Back Catalog number: 40221 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9004.2-2K-DC N-Nitrosodimethylamine, 2000µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 62-75-9 Price on request 675762 Heptachlor endo-epoxide, 100 µg/ml, Ethyl acetate Price on request 1586.30-2MG Friedelan-3 alpha-ol, neat, Solvent-neat, Unit 2mg, # of units-1, Cas.no. 5085-72-3 Price on request