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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
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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

PUBLISH DATE 2026
ISO 11456:2025

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

SDO ISO: International Organization for Standardization
Document Number ISO 11456
Publication Date April 1, 2026
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 183
Publish Date Document Id Type View
April 1, 2026 ISO 11456:2025 Revision