EPA Method 551.1 Internal Standard

ISO 10382Multicomponent Solution of PCBs and Organochlorine pesticides + injection standards. each 400µg/mL in isooctane; unit: 1x1mL Polychlorinated biphenyls 1999.12-100-IO 2,4,4’-Trichlorobiphenyl PCB-28 7012-37-5

4,4'-Dichlorobenzophenone, 100 µg/ml, Acetonitril

Semi-Volatile Mix #3