4,4’-DDE

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)

Bicadinane W, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no.

Melamine (13C3,99%; Amino-15N3,98%) 100 µg/mL in Water, 1,2ml