2,3,6,7-Tetrachloronaphthalene, 1.2ml x 50ug/ml, nonane

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)

(±)-Cannabichromene, 1.0mg/ml in Methanol, 1ml

Phenol Standard