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  • NBN EN 14944-3 : 2008

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    INFLUENCE OF CEMENTITIOUS PRODUCTS ON WATER INTENDED FOR HUMAN CONSUMPTION - TEST METHODS - PART 3: MIGRATION OF SUBSTANCES FROM FACTORY-MADE CEMENTITITOUS PRODUCTS

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    Published date:  13-01-2013

    Publisher:  Belgian Standards

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

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and Definitions
    4 Principle
    5 Reagents
       5.1 General requirements
       5.2 Disinfection reagents
            5.2.1 Sodium hypochlorite solution
            5.2.2 Disinfection treatment water
       5.3 Waters to be used for testing
            5.3.1 Preconditioning water
            5.3.2 Test water
            5.3.3 Test water without chlorine content (chlorine-free)
            5.3.4 Test water with chlorine content (chlorinated)
       5.4 Cleaning liquids for apparatus
    6 Apparatus
       6.1 General
       6.2 Apparatus and materials for test piece preparation
            6.2.1 Stainless steel plates and cylinders
            6.2.2 Glass cylinders
            6.2.3 Moulds for forming test pieces
       6.3 Apparatus and materials for preconditioning and migration
            procedure
            6.3.1 Vessels, containers, covers, connectors and stoppers
    7 Samples and test pieces
       7.1 Sampling, transport and storage of samples
       7.2 Preparation of test pieces
            7.2.1 General
            7.2.2 Factory made pipes, fittings and storage systems
       7.3 Surface area-to-volume ratio (S/V) for use in the test
            procedure
            7.3.1 General
            7.3.2 Pipes and fittings
            7.3.3 Storage systems (cement mortar, cement mortar lined
                  or concrete)
    8 Pre-treatment of samples (curing, preconditioning and disinfection)
       8.1 General
       8.2 Curing
       8.3 Preconditioning
            8.3.1 General
            8.3.2 Preconditioning without disinfection treatment
            8.3.3 Preconditioning with disinfection treatment
    9 Test procedure
       9.1 General
       9.2 Preparation of migration water for analysis of substances
            9.2.1 Migration procedure
            9.2.2 Second and third migration periods
            9.2.3 Additional migration periods
       9.3 Control samples (blank test)
    10 Analysis
    11 Calculation of test results
       11.1 Calculation of the concentration of the substances in the
            migration water
       11.2 Calculation of the migration rate of the measured substances
       11.3 Calculation of the mean migration rate
    12 Test report
       12.1 General information
       12.2 Information on the product
       12.3 Information on the test procedure
       12.4 Test results
    Annex A (normative) Additional procedures for testing factory made
            pipes (cement mortar lined and concrete)
          A.1 Sampling, test piece preparation and storage
              A.1.1 Sampling
              A.1.2 Test piece preparation and storage
          A.2 Surface area to volume (S/V) ratio
          A.3 Pretreatment of test pieces (preconditioning and
              disinfection)
          A.4 Test procedure
              A.4.1 Migration procedure at 23 degree C
              A.4.2 Migration procedure at elevated temperature
          A.5 Expression of results
          A.6 Reporting
    Annex B (normative) Additional procedures for testing factory made
            fittings (cement mortar lined and concrete)
          B.1 Sampling, test piece preparation and storage
              B.1.1 Sampling of Factory made fittings
              B.1.2 Test piece preparation and storage
          B.2 Surface area to volume (S/V) ratio
          B.3 Pre-treatment of test pieces (preconditioning and
              disinfection)
          B.4 Test procedure
              B.4.1 Migration procedure at 23 degree C
              B.4.2 Migration procedure at elevated temperature
          B.5 Expression of results
          B.6 Reporting
    Annex C (normative) Additional procedures for testing factory made
            storage systems (cement mortar, cement mortar lined and
            concrete)
          C.1 Sampling, test piece preparation and storage
              C.1.1 Sampling
              C.1.2 Test piece preparation and storage
          C.2 Surface area to volume (S/V) ratio
          C.3 Pretreatment of test pieces (preconditioning and
              disinfection)
          C.4 Test procedure
              C.4.1 Migration procedure at 23 degree C
              C.4.2 Migration procedure at elevated temperature
          C.5 Expression of results
          C.6 Reporting
    Annex D (informative) Examples of typical test pieces and test
            conditions as a function of S/V ratio
          D.1 General
          D.2 Pipes and fittings
          D.3 Test pieces to which a cylinder of stainless steel or
              glass is to be attached
          D.4 Square test plates coated with mortar
          D.5 Moulded test pieces where all faces are exposed to test
              water
    Annex E (informative) Test arrangements for testing factory made
            cementitious products
    Annex F (normative) Additional procedures for testing factory made
            cementitious products at elevated temperature
          F.1 General
          F.2 Test procedure at elevated temperature
              F.2.1 General
              F.2.2 Preparation of migration water for the assessment
                    of migration of substances
          F.3 Control samples (blank test)
          F.4 Expression of results
          F.5 Reporting
    Annex G (informative) Discrimination between porous and non-porous
            coatings on factory made products
          G.1 Principle
          G.2 Apparatus
              G.2.1 stainless steel plates
              G.2.2 cylinders
              G.2.3 pH meter
          G.3 Materials and reagents
              G.3.1 sealing compound/sealant
              G.3.2 demineralized water
          G.4 Test procedure
              G.4.1 General
              G.4.2 Laboratory blank
              G.4.3 Coated product
          G.5 Determination of pH
          G.6 Expression of results
          G.7 Classification criteria
    Annex H (informative) Schematic description of the test procedure
          H.1 Preconditioning
          H.2 Production of migration water at 23 degree C
          H.3 Typical Schedule
              H.3.1 Preconditioning
              H.3.2 Production of migration waters
    Annex I (informative) Procedural tests using standard additions
            (positive controls)
    Bibliography

    Abstract - (Show below) - (Hide below)

    Defines a method to determine the migration of substances from factory made cementitious products into test waters after contact with the products.

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

    Document Type Standard
    Publisher Belgian Standards
    Status Current
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