Total Residual Free Chlorine Back Catalog number: 59620 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 685756 Phosmet-oxon, 100µg/ml in Acetonitrile, 1ml Price on request 691733 cis-Dibromocypermethric acid, 100µg/ml in Acetonitrile, 1ml Price on request 673742 Binapacryl, 10.0 µg/ml, Ethyl acetate, 10ml Price on request