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Overview ISO 7393-2:2017 specifies a routine, field- and laboratory-applicable colorimetric method (DPD) for the determination of free chlorine and total chlorine in water. The method uses N,N-dialky…
1 Scope This document specifies a method for the determination of free chlorine and total chlorine in water, readily applicable to lab- and field-testing. It is based on measurement of the absorption…