• UNI EN 723 : 2009

    Current The latest, up-to-date edition.

    COPPER AND COPPER ALLOYS - COMBUSTION METHOD FOR DETERMINATION OF THE CARBON CONTENT ON THE INNER SURFACE OF COPPER TUBES OR FITTINGS

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    Published date:  09-07-2009

    Publisher:  Ente Nazionale Italiano di Unificazione (UNI)

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

    Foreword
    1 Scope
    2 Terms and definitions
    3 Principle
    4 Preparation of samples and test pieces
      4.1 Preparatory procedures
          4.1.1 General
          4.1.2 Residual carbon content
          4.1.3 Total carbon content
          4.1.4 Potential carbon content
      4.2 Preparation of samples
          4.2.1 Tubes
          4.2.2 Fittings
      4.3 Cleaning of sample surfaces
          4.3.1 Cleaning of inner surface of sample
          4.3.2 Cleaning of outer surface of sample
      4.4 Preparation of test pieces
          4.4.1 Tubes
          4.4.2 Fittings
    5 Method for carbon content determination
      5.1 General
      5.2 Determination of the carbon content
      5.3 Determination of the blank value
    6 Expression of results
    7 Calibration
    8 Test report
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes a combustion method for determining the carbon content, if any, on the inner surface of tubes of copper or fittings of copper or copper alloys.

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

    Committee CT 26
    Document Type Standard
    Publisher Ente Nazionale Italiano di Unificazione (UNI)
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    UNI 11342 : 2009 COPPER AND COPPER ALLOYS - COMPOSITE, SEAMLESS COPPER-PE, TUBES FOR FLUID DISTRIBUTION

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

    EN 1057:2006+A1:2010 Copper and copper alloys - Seamless, round copper tubes for water and gas in sanitary and heating applications
    EN 1173:2008 Copper and copper alloys - Material condition designation
    EN 13348:2016 Copper and copper alloys - Seamless, round copper tubes for medical gases or vacuum
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