2-Butyl-1,2-benzisothiazolin-3-one, 25mg

2,4,4'-Tribromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane

Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane

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)