GB/T 44242-2024: Hydrogen for proton exchange membrane fuel cell vehicles - Determination of inorganic halogenated compounds and formic acid - Ion chromatography method

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Scope

This document describes the principle, reagents and materials, instruments and
equipment, test procedures, test data processing, precision, quality assurance and
control, and test report for the determination of inorganic halogenated compounds and
formic acid in hydrogen for proton exchange membrane fuel cell vehicles by ion
chromatography.
This document is applicable to the determination of inorganic halogenated compounds
and formic acid in hydrogen for proton exchange membrane fuel cell vehicles. The
determination of inorganic halogenated compounds and formic acid in hydrogen for
other purposes shall be carried out in reference. The determination range of inorganic
halogenated compounds and formic acid in hydrogen is 0.025 μmol/mol~0.5 μmol/mol.
The detection limits of hydrogen chloride, chlorine, hydrogen bromide and formic acid
components in hydrogen are 0.014 μmol/mol, 0.007 μmol/mol, 0.002 μmol/mol and
0.001 μmol/mol, respectively.
NOTE. Inorganic halogenated compounds in this document refer to hydrogen chloride, chlorine
and hydrogen bromide which may be present in hydrogen gas.

Basic Data

Standard ID	GB/T 44242-2024 (GB/T44242-2024)
Description (Translated English)	Hydrogen for proton exchange membrane fuel cell vehicles - Determination of inorganic halogenated compounds and formic acid - Ion chromatography method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	F19
Classification of International Standard	27.010
Word Count Estimation	18,176
Date of Issue	2024-07-24
Date of Implementation	2024-11-01
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration