Total Residual Free Chlorine (Cl) Back Catalog number: 54124 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4193-2K-ME F-BTEX ISTD Mixture 4 Analytes, each 2000 µg/mL in methanol; units: 1x 4.5mL, 1x10mL 2017.6 Fluorobenzene [462-06-6] 2018.7 2-Fluorotoluene Price on request 11279.20-100-AN (+/-)-Pyriproxyfen-d4 (pyridyl-d4),100 µg/mL,acetonitrile,1mL, Price on request 2941.9-100-IO Endosulfan-I-d4, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 203645-57-2 Price on request