EPA Method 508 - Performance Check Solution Back Catalog number: 19132 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 66194 2,2’,3,3’,4,4’,5,5’-Octachlorobiphenyl (194) Price on request 63155 2,2’,4,4’,6,6’-Hexachlorobiphenyl (155) Price on request 673809 D3-Dicamba, 10mg Price on request