Total Residual Free Chlorine (Cl) Back Catalog number: 54224 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8647.12-50-NN 1,2,3,8,9-Pentachlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL, Price on request 677891 Diclobutrazol, 10 µg/ml, Ethyl acetate, 10ml Price on request 71654 Hexafluoro-2-methyl-2-propanol Price on request