Cyanofenphos, 100 µg/ml, Acetonitrile, 5ml

Dimethachlor oxalamic acid (OA), certified, 10mg

2,2',3,3',4,5,6'-Heptachlorobiphenyl (174)

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)