ISO 7393-2-1985 水质 游离氯和总氯的测定 第2部分:常规控制目的时使用的N,N-二乙基-1,4-苯二胺比色法

标准号：ISO 7393-2-1985
中文标准名称：水质 游离氯和总氯的测定 第2部分:常规控制目的时使用的N,N-二乙基-1,4-苯二胺比色法
英文标准名称：Water quality; Determination of free chlorine and total chlorine; Part 2 : Colorimetric method using N,N-diethyl-1,4-phenylenediamine, for routine control purposes
标准类型：Z16
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Z16
国际标准分类号：13.060.50
适用范围：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.