EPA Method 8240A Sys Perf Check Cmpds Back Catalog number: 82411 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0727.12-K-IO 1,8-Dimethylnaphthalene, 1000µg/ml in Isooctane, 1ml Price on request 678508 Tetrachlorvinphos, 100 µg/ml, Acetonitrile, 5ml Price on request 71672 2,4-Dibromophenol Price on request