EPA Method 505/507 - Pesticide Standard Back Catalog number: 91936 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71549 2,2,5,5-Tetramethyltetrahydrofuran Price on request 63196 2,2',3,3',4,4',5,6'-Octachlorobiphenyl (196) Price on request MBP-126 3,3',4,4',5-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request