Thiencarbazone-methyl, 100 µg/ml, Acetonitrile, 1ml

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)

Heptachlor-endo-epoxide (trans-, isomer A), 10µg/ml in CY, 10ml

3-Chloro-2-methylaniline, 250mg