2,2',3,4',5,6,6'-Heptachlorobiphenyl (188)

1-(Trimethylsilyl)imidazole, neat, Solvent-neat, Unit 1mL, # of units-5, Cas.no. 18156-74-6

3,3'-Dichlorobenzidine,100 µg/mL,acetonitrile,1mL

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)