ASTM-D7892 › Standard Test Method for Determination of Total Organic Halides, Total Non-Methane Hydrocarbons, and Formaldehyde in Hydrogen Fuel by Gas Chromatography/Mass Spectrometry
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Scope
1.1 The gas chromatography/mass spectrometry (GC/MS) procedure described in this test method is used to determine concentrations of total organic halides and total non-methane hydrocarbons (TNMHC) in hydrogen by measurement of individual target halocarbons (Table 1) and hydrocarbons (including formaldehyde, Table 1 and Table 2), respectively.
1.2 Mention of trade names in this test method does not constitute endorsement or recommendation for use. Other manufacturers’ equipment or equipment models can be used.
1.3 Units—The values stated in SI units are to be regarded as standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Significance and Use
5.1 Low operating temperature fuel cells such as PEMFCs require high purity hydrogen for optimal performance and longevity. Organic halides and formaldehyde can react with catalyst in PEMs and non-methane hydrocarbons degrade PEM stack performance.
Keywords
formaldehyde; high-pressure hydrogen; non-methane hydrocarbons; organic halides;
To find similar documents by ASTM Volume:
05.06 (Gaseous Fuels; Coal and Coke)
To find similar documents by classification:
27.075 (Hydrogen technologies Industrial application of gases, see 71.100.20)
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Document Number
ASTM-D7892-22
Revision Level
2022 EDITION
Status
Current
Modification Type
Revision
Publication Date
June 29, 2022
Document Type
Test Method
Page Count
7 pages
Committee Number
D03.14