1-(4-Chlorophenyl)urea, 100mg

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)

2,2',3,3',4,4',6,6'-Octabromodiphenyl ether,50 µg/mL,isooctane,1mL

1,2,3,7,8-Pentachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane