EPA Method 8240A Sys Perf Check Cmpds Back Catalog number: 82411 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 31351 1,1,1,2-Tetrachloroethane Price on request 684367 Diflufenican, 100 µg/ml, Acetonitrile, 5ml Price on request 51187 Unleaded 87 Octane (ETOH) 50% Weathered Price on request