ISO 12740:1998 硫化铅精矿 银和金含量的测定 使用铅析法或灰吹法火烧鉴定和火焰原子吸收光谱法.

标准编号：ISO 12740:1998

中文名称：硫化铅精矿 银和金含量的测定 使用铅析法或灰吹法火烧鉴定和火焰原子吸收光谱法.

英文名称：Lead sulfide concentrates — Determination of silver and gold contents — Fire assay and flame atomic absorption spectrometric method using scorification or cupellation

发布日期：1998-12

标准范围

本国际标准规定了测定硫化铅精矿中银和金含量的火试金和火焰原子吸收光谱测定程序。本方法适用于含10%（m/m）至80%（m/m）铅的硫化铅精矿中银和金的测定。该方法适用于200 g/t至2000 g/t的银含量和0.1 g/t至25 g/t的金含量。

This International Standard specifies a fire assay and flame atomic absorption spectrometric procedure for the determination of silver and gold contents of lead sulfide concentrates.The method is applicable to the determination of silver and gold in lead sulfide concentrates containing 10 % (m/m) to 80 % (m/m) lead.The method is applicable to silver contents from 200 g/t to 2 000 g/t and gold contents from 0,1 g/t to 25 g/t.

标准预览图