Total Residual Free Chlorine (Cl) Back Catalog number: 59427 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93010 Stearic acid butyl ester Price on request B-250S Dow FR-250, 100µg/ml in Isooctane, 1ml Price on request 675831 Flucythrinate, 100 µg/ml, Toluene, 5ml Price on request