PCB Congener Internal Standard Mix

4-Aminophenol, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 123-30-8

Benzo(g,h,i)perylene-d12, 1000µg/ml in Methylen Chloride, 1ml

EPA Method 8240A Mix #3