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Status : Active
Standard Type : Main
Document No : ISO 11723:2025
Document Year : 2025
Pages : 6
Edition : 3
Section Volume : Methods of analysis (ISO/TC 27/SC 5.)
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.