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Overview EN ISO 7393-2:2018 (ISO 7393-2:2017) specifies a routine colorimetric method for the determination of free chlorine and total chlorine in water using N,N-dialkyl-1,4-phenylenediamine (DPD).…
Overview - EN ISO 7393-1:2000 (Water quality, DPD titrimetric method) EN ISO 7393-1:2000 specifies a titrimetric procedure for the determination of free chlorine and total chlorine in water using N,N…
Overview EN ISO 7393-3:2000 (CEN adoption of ISO 7393-3:1990) defines an iodometric titration method for the determination of total chlorine in water. The method measures total chlorine (free + combi…
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…
Overview ISO 7393-3:1990 - "Water quality - Determination of free chlorine and total chlorine - Part 3: Iodometric titration method for the determination of total chlorine" specifies an iodometric ti…
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…
Overview ISO 7393-1:1985 specifies a titrimetric DPD method for the determination of free chlorine and total chlorine in water. The method uses N,N-diethyl-1,4-phenylenediamine (DPD) to form a red ox…