ISO 2071:1976 主要用于制铝的氧化铝.锌含量的测定.火焰原子吸收法

标准编号：ISO 2071:1976

中文名称：主要用于制铝的氧化铝.锌含量的测定.火焰原子吸收法

英文名称：Aluminium oxide primarily used for the production of aluminium — Determination of zinc content — Flame atomic absorption method

发布日期：1976-09

标准范围

本方法适用于锌含量等于或大于0002%（m/m）的产品。在压力下用盐酸溶解试验部分。将溶液吸入乙炔-空气火焰中，并用光度法测量空心阴极锌灯发出的213,7 nm吸收线。样品的溶解也可以通过碱性熔融进行。附录中给出了该方法。取代ISO建议R 2071-1971。

The method is applicable to products having Zn contents equal to or greater than 0,002 % (m/m). Dissolution of a test portion by hydrochloric acid under pressure. Aspiration of the solution into an acetylene-air flame and photometric measurement of the absorption of the 213,7 nm line emitted by a hollow-cathode zinc lamp. The dissolution of the sample can also be carried out by an alkaline fusion. This method is given in the annex. Replaces ISO Recommendation R 2071-1971.

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