EPA Method 8240A Sys Perf Check Cmpds Back Catalog number: 82411 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10267.12-100-IO 2’,3,4-Tribromodiphenyl ether,100 µg/mL,isooctane,1mL, Price on request 1773.12-100-AN 4,4'-Diaminobiphenyl,100 µg/mL,acetonitrile,1mL, Price on request 10419.7-100-AN Methyl pentachlorophenyl sulfide Price on request