Total Residual Free Chlorine (Cl)

1,2,7,9-Tetrachlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL,

Prosulfocarb, 100µg/ml in MeOH, 1ml

Pentachlorobenzene, 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 608-93-5