2-Methylheptane, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 592-27-8

2,3,3',4,4'-Pentachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 32598-14-4

Thianthrene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 92-85-3

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)