2,3,4,5-Tetrabromobenzoic acid, 1.2ml x 50ug/ml, methanol

2-Nonanone, 1ml

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)

4-OH-Pyriproxyfen (4'-OH-pyr), 100 µg/ml, Acetoni