4,4'-Diamino-3,3'-dimethyldiphenylmethane, 100mg

WS Amp 2 Trace Elements

4,4'-DDT, 100 µg/ml, 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)