ISO 11723:2025

International Standard   Current Edition · Approved on 25 June 2025

Coal and coke — Determination of arsenic and selenium — Eschka's mixture and hydride generation method

ISO 11723:2025 Files

English 6 Pages
Current Edition
20.82 OMR

ISO 11723:2025 Scope

This document specifies a method using Eschka's mixture during ashing, extraction of the ash residue with acid, and hydride generation atomic absorption spectrometry or hydride generation atomic fluorescence spectrometry, for the determination of arsenic and selenium in solid mineral fuels.

The method is also applicable for the determination of the analytes by hydride generation inductively coupled plasma atomic emission spectrometry.

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