Potassium (K)

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)

2,2',3,4',5',6-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 38380-04-0

trans-1,2-Cyclohexanedicarboxylic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 2305-32-0