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

Informace o normě:

Označení normy: ISO 11723:2025-ed.3.0
Datum vydání normy: 25.6.2025
Počet stran: 6
Přibližná hmotnost: 18 g (0.04 liber)
Země: Mezinárodní technická norma
Kategorie: Technické normy ISO

Anotace textu normy ISO 11723:2025-ed.3.0 :

Description / Abstract: This document specifies a method using Eschkas 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.