EPA Method 551 Analytes

D12-Benzo[a]pyrene, 10.0 µg/ml, Acetonitrile, 1m

17 alpha(H),21ß(H)-25,30-Bisnorhopane, neat, Solvent-neat, Unit ca. 1µg , # of units-1, Cas.no.

1,2,7,8-Tetrabromodibenzofuran, 1.2ml x 50ug/ml, toluene