Skip to content
Please enter a keyword to search
  • Preview

    I.S. EN ISO 6145-4:2008

    Current The latest, up-to-date edition.

    GAS ANALYSIS - PREPARATION OF CALIBRATION GAS MIXTURES USING DYNAMIC VOLUMETRIC METHODS - PART 4: CONTINUOUS SYRINGE INJECTION METHOD

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2008

    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.

    Add To Cart

    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)

    Provides 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)

    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Current

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

    ISO/IEC Guide 98:1993 Guide to the expression of uncertainty in measurement (GUM)
    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
    View more information

    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective