Total Residual Free Chlorine (Cl) Back Catalog number: 59427 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended F-7008-100MG 2,3-Diaminobiphenyl 2HCl, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. Price on request C641500 Colistin Sulfate, 1g Price on request 675011 PSA-GCB-Mix for 2007.01 per AOAC Price on request