Native PCB Stock Solution , 1.2ml , nonane

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)

1-Naphthyl acetic acid-ethyl ester, 250mg

D10-Biphenyl, 100 µg/ml, Cyclohexane, 1ml