ISO 7393-2:1985 水的质量.游离氯和氯的总含量测定.第2部分：为常规检验目的使用的N,N-二乙基-1,4-苯二胺比色法

标准编号：ISO 7393-2:1985

中文名称：水的质量.游离氯和氯的总含量测定.第2部分：为常规检验目的使用的N,N-二乙基-1,4-苯二胺比色法

英文名称：Water quality — Determination of free chlorine and total chlorine — Part 2: Colorimetric method using N,N-diethyl-1,4-phenylenediamine, for routine control purposes

发布日期：1985-10

标准范围

规定了适用于现场测试的水处理程序；它基于通过视觉对比颜色和定期校准的标准比例尺来测量颜色强度。海水和含有溴化物和碘化物的水是一组需要特殊程序的水。该程序适用于总氯浓度为0000 4至0.07 mmol/l的氯浓度，以及通过稀释样品达到更高浓度的氯浓度。注意程序的干扰。

Specifies a procedure for water, readily applicable to field testing; it is based on measurement of the colour intensity by visual comparison of the colour with a scale of standards which is regularly calibrated. Sea water and waters containing bromides and iodides comprise a group for which special procedures are required. The procedure is applicable to concentrations, in terms of chlorine, from 0,000 4 to 0,07 mmol/l total chlorine and at higher concentrations by dilution of samples. Interferences of the procedure are noted.

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