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NBN EN ISO 6142 : 2006

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

GAS ANALYSIS - PREPARATION OF CALIBRATION GAS MIXTURES - GRAVIMETRIC METHOD
Superseded date

10-01-2015

Published date

01-12-2013

Foreword
1 Scope
2 Normative references
3 Principle
4 Preparation of the mixture
5 Calculation of uncertainty
6 Verification of calibration gas mixture composition
7 Test report
Annex A (informative) Practical examples
Annex B (informative) Guidelines for estimating filling
        pressures so as to avoid condensation of
        condensable components in gas mixtures
Annex C (informative) Precautions to be taken when
        weighing, handling and filling cylinders
Annex D (informative) Derivation of the equation for
        calculating the calibration gas mixture
        composition
Annex E (informative) Sources of error
Annex F (informative) Estimation of corrections and
        correction uncertainty
Annex G (informative) Computer implementation of
        recommended methods
Bibliography

Describes a gravimetric method for the preparation of calibration gas mixtures in cylinders of which the target accuracy has been pre-defined. Applicable only to mixtures of gaseous or totally vaporized components which do not react with each other or with the cylinder walls.

DocumentType
Standard
PublisherName
Belgian Standards
Status
Superseded

Standards Relationship
EN ISO 6142:2006 Identical
DIN EN ISO 6142:2006-11 Identical
I.S. EN ISO 6142:2007 Identical
BS EN ISO 6142:2006 Identical
ISO 6142:2001 Identical
UNE-EN ISO 6142:2007 Identical

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