EPA Method 508.1 & 525.2 Pesticide Standard Back Catalog number: 91970 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673193 Aldicarb-sulfoxide, 100 µg/ml, Acetonitrile, 5ml Price on request 31351 1,1,1,2-Tetrachloroethane Price on request 59346 Anions Mix - Chloride + Sulfate as SO42- Price on request