4-Hydroxy-2',3',4',5'-tetrachlorobiphenyl, 10mg

Octachloronaphthalene, 1.2ml x 50ug/ml, nonane

EPA Method 525 Spike B

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)