EPA Method 525.2 Pesticide Level 3 Back Catalog number: 92844 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678466 Paraoxon-ethyl, 10 µg/ml, Acetonitrile, 10ml Price on request 70379 Benzyl bromide Price on request DF-123478-S 1,2,3,4,7,8-Hexachlorodibenzofuran , 1.2ml x 50ug/ml, nonane Price on request