D5-Acetochlor, 10mg

O,O-Diethyl thiophosphate potassium salt, 250mg

2,5-Dimethylphenol, 500mg

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)