Total Residual Free Chlorine (Cl) Back Catalog number: 59427 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675981 D4-2-Chlorophenol, 100 µg/ml, Acetone, 1ml Price on request 679898 DNOC, 100 µg/ml, Acetonitrile, 1ml Price on request 90325 Methyl-t-butyl ether Price on request