2,4,4’-Tribromodiphenyl ether, 50µg/ml in IO, 1ml

Dibenzo[a,h]pyrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 189-64-0

0.100 N Potassium Thiocyanate

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)