Acids Supplemental Standard

Benzo[a]naphtha[8,1,2-cde]naphthacene (in vial for quick-preparation of solution), neat, Solvent-neat, Unit ca. 100ug, # of units-1, Cas.no. 192-70-1

D8-4,4'-DDE, 100 µg/ml, Acetone, 1ml

PCB No. 31, certified, 25mg