EPA Method 531.1 Individual Analytes Back Catalog number: 30041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2001.12-10MG 2,2',4,5,5'-Pentachlorobiphenyl,neat,neat,10mg, Price on request 683844 Iprobenfos, 100 µg/ml, Acetonitrile, 5ml Price on request C10206350 1-Aminonaphthalene, certified, 50mg Price on request