Chloridazon, 100 µg/ml, Acetonitrile, 5ml

Metazachlor ESA sodium salt, 10mg

Sulfur in Heavy Weight Mineral Oil - 0.010 Wt%

D6729 Calibration Standard Mixtures Reference sample ARC96OX from Alberta Research Council, Edmonton, Canada Spark ignition engine fuel standard of known composition and concentration by mass.