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ISO 6142-1:2015

Current
Current

The latest, up-to-date edition.

Gas analysis Preparation of calibration gas mixtures Part 1: Gravimetric method for Class I mixtures
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

French, English

Published date

04-08-2015

ISO 6142-1:2015 specifies a gravimetric method for the preparation of calibration gas mixtures in cylinders with traceable values for the amount-of-substance fraction (amount fraction) of one or more components. This part of ISO 6142 describes a method for calculating the uncertainty associated with the amount fraction of each component. This uncertainty calculation requires the evaluation of the contributions to the uncertainty due to factors including the weighing process, the purity of the components, the stability of the mixture, and the verification of the final mixture.

ISO 6142-1:2015 is only applicable to mixtures of gaseous or totally vaporized components, which may be introduced into the cylinder in the gaseous or liquid state. Both binary and multi-component gas mixtures (including natural-gas type mixtures) are covered by this part of ISO 6142. Methods for the batch production of more than one mixture in a single process are not included in this part of ISO 6142.

ISO 6142-1:2015 requires estimation of the stability of the mixture for its intended life time (maximum storage life), but it is not for use with components that react with each other unintentionally. This part of ISO 6142 also requires the impurities in each parent gas or liquid used in the preparation of the mixture to be assessed and quantified.

DevelopmentNote
Supersedes ISO/DIS 6142-1 & ISO 6142. (08/2015) NEW CHILD AMD 1 2020 IS NOW ADDED
DocumentType
Standard
Pages
40
ProductNote
NEW CHILD AMD 1 2020 IS NOW ADDED
PublisherName
International Organization for Standardization
Status
Current
Supersedes

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ISO Guide 34:2009 General requirements for the competence of reference material producers
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