EPA Method 500 Series Internal Std #4 Back Catalog number: 30003 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 43131 Pesticide Decomposition Standard Price on request 70123 4,4’-Dibromooctafluorobiphenyl Price on request MDF-12346-1 1,2,3,4,6-Pentachloro[13C12]dibenzofuran, 1.2ml x 1ug/ml, nonane Price on request