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  • BS ISO 6145-4 : 2004

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 USING DYNAMIC VOLUMETRIC METHODS - PART 4: CONTINUOUS SYRINGE INJECTION METHOD

    Available format(s):  Hardcopy, PDF

    Superseded date:  28-02-2009

    Language(s):  English

    Published date:  01-01-2004

    Publisher:  British Standards Institution

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

    1 Scope
    2 Normative references
    3 Principle
    4 Application to preparation of gas mixtures
      4.1 Description of the experimental procedure
      4.2 Area of validity
      4.3 Operating conditions
    5 Expression of results
      5.1 Volume fraction
      5.2 Sources of uncertainty
      5.3 Uncertainty of volume fraction
    Annex A (informative) Pre-mixed gases for preparation of
                          mixtures of high dilution
    Annex B (informative) Example of apparatus for preparation
                          of calibration gas mixtures
    Annex C (informative) Practical hints
    Annex D (informative) Example of the determination of the
                          uncertainty in the concentration of a
                          calibration gas mixture prepared by the
                          continuous injection method
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes a method for continuous production of calibration gas mixtures, containing two or more components, from pure gases or other gas mixtures by continuous injection of the calibration component(s) into a complementary gas stream by means of a syringe.

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

    Committee PTI/15
    Development Note Supersedes BS 4559-5.4(1987). (03/2005) Supersedes 01/123356 DC. (04/2005) Renumbered and superseded by BS EN ISO 6145-4. (02/2009)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

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

    ISO 6145-7:2009 Gas analysis Preparation of calibration gas mixtures using dynamic volumetric methods Part 7: Thermal mass-flow controllers
    ISO 6143:2001 Gas analysis — Comparison methods for determining and checking the composition of calibration gas mixtures
    ISO 7504:2015 Gas analysis Vocabulary
    ISO 6145-1:2003 Gas analysis Preparation of calibration gas mixtures using dynamic volumetric methods Part 1: Methods of calibration
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