ISO 11723:2025
ISO 11723:2025 Coal and coke - Determination of arsenic and selenium - Eschkas mixture and hydride generation method
standard byInternational Organization for Standardization , 07/01/2025
standard byInternational Organization for Standardization , 07/01/2025
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.
u000bThe method is also applicable for the determination of the analytes by hydride generation inductively coupled plasma atomic emission spectrometry.