SDWA Total Residual Chlorine Back Catalog number: 55124 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2862.7-50-ME 7H-Perfluoroheptanal, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 647-44-9 Price on request 0432.13-K-IO 4-Methylbiphenyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 644-08-6 Price on request 72713 2,6-Dichloroaniline Price on request