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>ISO Standards>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
immediate downloadReleased: 2025
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

ISO 11456:2025

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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Standard´s number:ISO 11456:2025
Pages:40
Edition:1
Released:2025
Language:English
DESCRIPTION

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
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