ISO 18412-2005 水质.铬(VI)测定.轻微污染水用光度测量法

标准号：ISO 18412-2005
中文标准名称：水质.铬(VI)测定.轻微污染水用光度测量法
英文标准名称：Water quality - Determination of chromium(VI) - Photometric method for weakly contaminated water
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：This International Standard specifies a method for the determination of chromium(VI) in drinking water in mass concentrations between 2 μg/l and 50 μg/l. For the determination of higher concentrations, the sample is diluted prior to analysis. The method may also be applied to weakly polluted ground and surface water, provided the matrix does not contain interfering reducing agents. This method has not been verified for estuarine water and seawater, so the user is responsible for the validation of the method for these matrices. The photometric determination of chromium(VI) in waste water is carried out according to ISO 11083, Water quality — Determination of chromium(VI) — Spectrometric method using 1,5-diphenylcarbazide.