2,2,3,4,5,5-Hexachlorobiphenyl,BZ-141

2,3-Dimethylaniline, 100mg

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)

Nitrite as NO2-, 1000µg/ml in water, 100ml