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由國際標準化組織 IX-ISO 發布于 1984-09。
ISO 6703-1-1984 在中國標準分類中歸屬于: Z16 水環境有毒害物質分析方法,在國際標準分類中歸屬于: 13.060.50 水的化學物質檢驗。
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