EPA Method 23 Calibration Kit, 5 ampoules, nonane

Etoxazole, 10.0 µg/ml, Acetonitrile, 10ml

2,4-Dibromobiphenyl, 1.2ml x 50ug/ml, nonane

Sodium p-n-dodecylbenzenesulfonate, 1000µg/mL in MeOH, 1ml