EPA Method 300.0 Anions, 1000µg/ml in Water, 100ml

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Heavy 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)

2,3',4,4',6-Pentachlorobiphenyl (119)

2,4’-DDT, 1000µg/ml in MeOH, 1ml