EPA Method 8060 QC Check Solution

Heptenophos, 100 µg/ml, Toluene, 1ml

4,4'-Dibromobiphenyl, 1.2ml x 50ug/ml, nonane

Cyclooctane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 292-64-8