Parathion-ethyl, 100 µg/ml, Toluene, 1ml

Perfluoro-n-[1,2-13C2]tetradecanoic acid, 50µg/ml in MeOH, 1,2ml

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)

EN 12916 System Calibration Standards 1 (SCS1) 7 Analytes, each concentration as listed in n-heptane; units: 1x5mL or 5x5mL Weight% based on the nearest 0.1mg 1301.6 Cyclohexane (5.1) [110-82-7] 1.0g/100mL 0332.18 1-Pheny