ISO 11456:2025
Copper and zinc sulfide concentrates — Determination of silver content — Acid digestion and flame atomic absorption spectrometric or inductively coupled plasma optical emission spectrometric method
| Edition date: |
2025-10-22
In Force
|
|---|---|
| Available languages: | English |
| Summary: | This document specifies an acid digestion and flame atomic absorption spectrometric (AAS) method, or inductively coupled plasma optical emission spectrometric (ICP-OES) method for the determination of the mass fraction of silver in copper and zinc sulfide concentrates. The method is applicable to concentrates having silver contents in the following ranges. — copper concentrates: 10 g/t to 800 g/t ; — zinc concentrates: 10 g/t to 800 g/t |
| ICS: | 73.060.99-Other metalliferous minerals |
| CTN: | ISO/TC 183 - 54074 |










