Total Residual Free Chlorine (Cl)

1,2,7,8-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane

Spirotetramat-mono-hydroxy, 10.0 µg/ml, Acetonitr

n-Undecanaldehyde-DNPH, 100µg/ml in Acetonitrile, 5ml