ASTM D 7941/D7941M : 2014

Name: ASTM D 7941/D7941M : 2014
Brand: ASTM
Price: 75.00 USD

Superseded

View Superseded by

Standard Test Method for Hydrogen Purity Analysis Using a Continuous Wave Cavity Ring-Down Spectroscopy Analyzer

Available format(s)

Hardcopy , PDF

Superseded date

02-17-2023

Language(s)

English

Published date

07-21-2014

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 05.06, 2015 Defines contaminant determination in fuel-cell-grade hydrogen as specified in relevant ASTM and ISO standards using cavity ring-down spectroscopy (CRDS).

1.1This test method describes contaminant determination in fuel-cell-grade hydrogen as specified in relevant ASTM and ISO standards using cavity ring-down spectroscopy (CRDS). This standard test method is for the measurement of one or multiple contaminants including, but not limited to, water (H₂O), oxygen (O₂), methane (CH₄), carbon dioxide (CO₂), carbon monoxide (CO), ammonia (NH₃), and formaldehyde (H₂CO), henceforth referred to as “analyte.”

1.2This test method applies to CRDS analyzers with one or multiple sensor modules (see 3.3 for definition), each of which is designed for a specific analyte. This test method describes sampling apparatus design, operating procedures, and quality control procedures required to obtain the stated levels of precision and accuracy.

1.3The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.4This 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 and health practices and determine the applicability of regulatory limitations prior to use.

Committee	D 03
DocumentType	Test Method
Pages	10
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM D 7941/D7941M : 2023

CFR 40(PTS100-149) : JUL 94	PROTECTION OF ENVIRONMENT - ENVIRONMENTAL PROTECTION AGENCY
ASTM D 7649 : 2010	Standard Test Method for Determination of Trace Carbon Dioxide, Argon, Nitrogen, Oxygen and Water in Hydrogen Fuel by Jet Pulse Injection and Gas Chromatography/Mass Spectrometer Analysis
ISO 14687-3:2014	Hydrogen fuel Product specification Part 3: Proton exchange membrane (PEM) fuel cell applications for stationary appliances
ASTM D 4150 : 2021 : REV A	Standard Terminology Relating to Gaseous Fuels
ASTM D 4150 : 2020 : REV A	Standard Terminology Relating to Gaseous Fuels
ASTM D 5287 : 1997	Standard Practice for Automatic Sampling of Gaseous Fuels
ASTM D 7653 : 2010	Standard Test Method for Determination of Trace Gaseous Contaminants in Hydrogen Fuel by Fourier Transform Infrared (FTIR) Spectroscopy
ISO 14687-2:2012	Hydrogen fuel Product specification Part 2: Proton exchange membrane (PEM) fuel cell applications for road vehicles
ASTM D 4150 : 2019	Standard Terminology Relating to Gaseous Fuels
ASTM D 7606 : 2017	Standard Practice for Sampling of High Pressure Hydrogen and Related Fuel Cell Feed Gases
ASTM D 7265 : 2012	Standard Specification for Hydrogen Thermophysical Property Tables
ASTM D 5287 : 2008	Standard Practice for Automatic Sampling of Gaseous Fuels
ASTM D 4150 : 2008	Standard Terminology Relating to Gaseous Fuels
ASTM D 4150 : 2000	Standard Terminology Relating to Gaseous Fuels
ASTM D 5287 : 2008 : R2015	Standard Practice for Automatic Sampling of Gaseous Fuels (Withdrawn 2024)
ASTM D 4150 : 2003	Standard Terminology Relating to Gaseous Fuels
ASTM D 4150 : 2021	Standard Terminology Relating to Gaseous Fuels
ASTM D 7606 : 2011	Standard Practice for Sampling of High Pressure Hydrogen and Related Fuel Cell Feed Gases
ASTM D 7653 : 2018	Standard Test Method for Determination of Trace Gaseous Contaminants in Hydrogen Fuel by Fourier Transform Infrared (FTIR) Spectroscopy
SAE J 2719 : 2005(R2015)	HYDROGEN FUEL QUALITY FOR FUEL CELL VEHICLES
ASTM D 7265 : 2006	Standard Specification for Hydrogen Thermophysical Property Tables
ASTM D 4150 : 2008 : R2016	Standard Terminology Relating to Gaseous Fuels
ASTM D 4150 : 2021 : REV B	Standard Terminology Relating to Gaseous Fuels
ASTM D 7265 : 2012 : R2018	Standard Specification for Hydrogen Thermophysical Property Tables
ASTM D 7649 : 2010 : R2017	Standard Test Method for Determination of Trace Carbon Dioxide, Argon, Nitrogen, Oxygen and Water in Hydrogen Fuel by Jet Pulse Injection and Gas Chromatography/Mass Spectrometer Analysis