Total Residual Free Chlorine (Cl) Back Catalog number: 59427 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C10015500 Acetic acid, 1ml Price on request SC-490534 10-Hydroxybenzo[h]quinoline-7-sulfonate sodium salt, 100mg Price on request 8984.8-200-MEX5 2,4-Dimethylaniline Price on request