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ISO 21087:2019
Hind 78,30 EUR
Gas analysis -- Analytical methods for hydrogen fuel -- Proton exchange membrane (PEM) fuel cell applications for road vehicles
This document specifies the validation protocol of analytical methods used for ensuring the quality of the gaseous hydrogen (H2) at hydrogen distribution bases and hydrogen fuelling stations for road vehicles using proton exchange membrane (PEM) fuel cells. It also gives recommendations on the calculation of an uncertainty budget for the amount fraction. This document is established mainly for analysis done in laboratories after the sampling of hydrogen either at hydrogen distribution bases or at hydrogen refuelling stations. The specific requirements for on-line monitoring are not covered by this document. This document gives a list of suitable analytical techniques used to measure each impurity in hydrogen, according to the specification of hydrogen grade D defined by ISO 14687: - [1]. Moreover, recommendations for keeping the integrity of the sample are also given in order to ensure the quality of the measurement. It also includes the requirements for reporting the analytical results. [1] Under preparation. Stage at the time of publication: ISO/DIS 14687:2018.

IEC 61207-3:2019 RLV
Hind 196,64 EUR
Gas Analyzers - Expression of performance - Part 3: Paramagnetic oxygen analysers
IEC 61207-3:2019 RLV contains both the official IEC International Standard and its Redline version. The Redline version is not an official document, it is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC 61207-3:2019 applies to the three main methods for measuring oxygen by its paramagnetic property, which are outlined in the introduction. It considers essential ancillary units and applies to analyzers installed indoors and outdoors. Safety-critical applications can require additional requirements from system and analyzer specifications not covered in this document. This document is intended: – to specify terminology and definitions related to the functional performance of para¬magnetic gas analyzers for the measurement of oxygen in a source gas; – to unify methods used in making and verifying statements on the functional performance of such analyzers; – to specify what tests are performed to determine the functional performance and how such tests are carried out; – to provide basic documents to support the application of internationally recognized quality management standards. This third edition cancels and replaces the second edition published in 2002. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) all references (normative and informative) have been updated, deleted or added to as appropriate; b) all the terms, descriptions and definitions relating to the document have been updated where appropriate; c) all references to “errors” have been replaced by “uncertainties” and appropriate updated definitions applied.

IEC 61207-3:2019
Hind 151,26 EUR
Gas Analyzers - Expression of performance - Part 3: Paramagnetic oxygen analysers
IEC 61207-3:2019 applies to the three main methods for measuring oxygen by its paramagnetic property, which are outlined in the introduction. It considers essential ancillary units and applies to analyzers installed indoors and outdoors. Safety-critical applications can require additional requirements from system and analyzer specifications not covered in this document. This document is intended: – to specify terminology and definitions related to the functional performance of para¬magnetic gas analyzers for the measurement of oxygen in a source gas; – to unify methods used in making and verifying statements on the functional performance of such analyzers; – to specify what tests are performed to determine the functional performance and how such tests are carried out; – to provide basic documents to support the application of internationally recognized quality management standards. This third edition cancels and replaces the second edition published in 2002. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) all references (normative and informative) have been updated, deleted or added to as appropriate; b) all the terms, descriptions and definitions relating to the document have been updated where appropriate; c) all references to “errors” have been replaced by “uncertainties” and appropriate updated definitions applied.
Asendab IEC 61207-3:2002; IEC 61207-3/Cor 1:2003; IEC 61207-3/Cor 2:2003

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