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    I.S. EN ISO 6142:2007

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    GAS ANALYSIS - PREPARATION OF CALIBRATION GAS MIXTURES - GRAVIMETRIC METHOD

    Available format(s):  Hardcopy, PDF

    Superseded date:  28-09-2015

    Language(s):  English

    Published date:  01-01-2007

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

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    Table of Contents - (Show below) - (Hide below)

    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

    Abstract - (Show below) - (Hide below)

    Describes a gravimetric method for the preparation of calibration gas mixtures in cylinders of which the target accuracy of the composition 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.

    General Product Information - (Show below) - (Hide below)

    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Superseded
    Superseded By

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
    ISO 6143:2001 Gas analysis — Comparison methods for determining and checking the composition of calibration gas mixtures
    DIN 51896-1:1991-10 GAS ANALYSIS; QUANTITIES OF COMPOSITIONS, COMPRESSIBILITY FACTOR, BASIS
    ISO/TS 14167:2003 Gas analysis General quality assurance aspects in the use of calibration gas mixtures - Guidelines
    ISO 6141:2015 Gas analysis Contents of certificates for calibration gas mixtures
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