标准摘要
[中文适用范围]： 本国际标准描述了用于测定油漆及相关产品中总铅的火焰原子吸收光谱法。该方法适用于总铅含量范围约为0.01%至2%（质量分数）的产品。 [外文原描述]： The method is principle to coating materials having lead contents in the range of about 0,01 % (m/m) to 2 % (m/m), may also be applicable to products with a total lead content of more than 2 % (m/m) when the requirements of precision does not exceed the specified values. two methods are given. The principle of the dry ashing method consists in evaporation of a test portion to dryness and ashing at 475 C and extraction of any lead in the residue with hydrochloric acid; that of the wet oxidation method consists in wet oxidation of a test portion with a mixture of sulfuric acid and hydrogen peroxide or with sulfuric acid and nitric acid and extraction of any lead in the residue with EDTA and ammonia solution.
英文名称Paints and varnishes — Determination of total lead — Flame atomic absorption spectrometric method