Heptachlor-exo-epoxide, 100 µg/ml, Acetonitrile,

2-Chlorophenol-3,4,5,6-d4,1000 µg/mL,isopropanol,1mL,

n-Heptadecane

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Light 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)