100 mg/l - 25 ml -Total Residual Chlorine Reference Standard

100 mg/l - Total Residual Chlorine Reference Standard Solution in Water (0.2% NaOH) This standard reference has limited shelf life as 6 months as long as it is kept under the storage conditions which is described in CoA.

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Background

All analysis and tests during certification works are carried out at ISO 17025 accredited laboratories. Manufacture of the standards is implemented according to ISO 17034 conditions. Manufacture of standards meets conditions to ensure NIST traceability.