EPA Method 507/525 Analytes Mix #2 Rev.1 Back Catalog number: 31083 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 63188 2,2',3,4',5,6,6'-Heptachlorobiphenyl (188) Price on request 79710 Bentazon, 1000µg/ml in Acetonitrile, 1ml Price on request 92213 8151MDL B Price on request