EPA Method 525.2 Pesticide Level 4 Back Catalog number: 92843 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C-025N 2,3',4-Trichlorobiphenyl, 5mg Price on request 672926 Dicamba, 250mg Price on request 673332 Isoproturon, 10.0 µg/ml, Acetonitrile, 10ml Price on request