3-Perfluoropentyl propanoic acid (5:3), 50µg/ml in MeOH, 1,2ml

2,6-Dinitrotoluene

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)

PCB Mix 2.5 ppb