Metazachlor OA, 100 µg/ml, Acetonitrile, 1ml

cis-(13C10)Chlordane (a), 1.2mL x 100ug/mL, nonane

PCB No. 185, 100ug/ml in Isooctane, 1ml

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Heavy White Oil (less than 20mg/kg S) Unit : 10mL screw-capped bottle Light White Mineral Oil Heavy White Mineral Oil (20 cSt at 40°C) (70 cSt at 40°C)