Total Residual Free Chlorine (Cl) Back Catalog number: 59427 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2904.12-100-IO 2,4,4',5-Tetrachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 32690-93-0 Price on request 1543.10-K-IOX5 n-Decane-d22, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 16416-29-9 Price on request 71782 3-Furaldehyde Price on request