EPA Method 502.2/624Mix Back Catalog number: 93600 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 684134 1,1,1,2-Tetrachloroethane, 100 µg/ml, Methanol, Price on request 679372 Heptachlor-exo-epoxide, 10 µg/ml, Cyclohexane, 1 Price on request XA13460500AL Fenchlorphos-oxon, 100µg/ml in Acetonitrile, 1ml Price on request