Diphenylamine, 100 µg/ml, Acetonitrile, 1ml

Dichloroisoeverninic acid, 10mg

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)

2-Methoxy-2',3',5,5',6'-pentachlorobiphenyl, 100µg/ml in IO, 1ml