The three methods specified are applicable to water containing less than 100 mg per litre, but higher concentrations may be determined by suitable dilution of the sample. The methods suitable and corresponding ranges are as follows: photometric method with pyridine/barbituric acid: 0,002 to 0,025 mg; titrimetric method using the tyndall effect: 0,005 mg; titrimetric method using an indicator: 0,05 mg. Ions and compounds interfering with the determination are listed in table 1.
ISO 6703-1-1984由国际标准化组织 IX-ISO 发布于 1984-09。
ISO 6703-1-1984 在中国标准分类中归属于: Z16 水环境有毒害物质分析方法,在国际标准分类中归属于: 13.060.50 水的化学物质检验。
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