EPA Method 200.8

1,3,7,8-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane

4,4'-DDE, 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 72-55-9

2,4-Dichlorobiphenyl (BZ-8)