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NS EN 14944-3 : 1ED 2007

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Superseded date

06-02-2024

Published date

12-01-2013

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

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

DocumentType
Standard
PublisherName
Norwegian Standards (Norges Standardiseringsforbund)
Status
Superseded
SupersededBy

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