4-(Trifluoromethyl)-3-Pyridinecarboxylic Acid, 100mg

Benzidine D8, 500µg/mL in Acetonitrile:Methanol, 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)

3,4-Dichlorophenol