International Standard
ISO 6142-1:2015
Gas analysis — Preparation of calibration gas mixtures — Part 1: Gravimetric method for Class I mixtures
Reference number
ISO 6142-1:2015
Edition 1
2015-08
International Standard
Read sample
ISO 6142-1:2015
59631
Published (Edition 1, 2015)
This standard was last reviewed and confirmed in 2020. Therefore this version remains current.
This standard has 1 amendment.

ISO 6142-1:2015

ISO 6142-1:2015
59631
Language
Format
CHF 173
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Abstract

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.

General information

  •  : Published
     : 2015-08
    : International Standard confirmed [90.93]
  •  : 1
     : 39
  • ISO/TC 158
    71.040.40 
  • RSS updates

 Amendments

Amendments are issued when it is found that new material may need to be added to an existing standardization document. They may also include editorial or technical corrections to be applied to the existing document.

Amendment 1

Corrections to formulae in Annex E and Annex G

Edition 2020

ISO 6142-1:2015/Amd 1:2020
81078
Language
Format
CHF 18
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Life cycle

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