Urban dust - Organic contaminants, 2g

GC/MS Calibration Standard Mix #2

1H,1H,2H,2H-Perfluorooctyl Acrylate, 1g

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)