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eLibrary > BS EN 14944-3:2023 - TC Tracked Changes. Influence of cementitious products on water intended for human consumption. Test methods - Migration of substances from factory-made cementititous products >

BS EN 14944-3:2023 - TC Tracked Changes. Influence of cementitious products on water intended for human consumption. Test methods - Migration of substances from factory-made cementititous products, 2024

BS EN 14944-3:2023 - TC Tracked Changes. Influence of cementitious products on water intended for human consumption. Test methods - Migration of substances from factory-made cementititous products, 2024

A-30427122.pdf [Go to Page]
undefined
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus [Go to Page]
6.1 General
6.2 Apparatus and materials for test piece preparation (see Annexes A, B and C) [Go to Page]
6.2.1 Stainless steel plates and cylinders [Go to Page]
6.2.1.1 Stainless steel
6.2.1.2 Plates
6.2.1.3 Cylinders
6.2.2 Glass cylinders
6.2.3 Moulds for forming test pieces
6.3 Apparatus and materials for preconditioning and migration procedure
7 Samples and test pieces [Go to Page]
7.1 Sampling, transport and storage of samples
7.2 Preparation of test pieces [Go to Page]
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 [Go to Page]
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 and preconditioning) [Go to Page]
8.1 General
8.2 Curing
8.3 Preconditioning
9 Test procedure [Go to Page]
9.1 General
9.2 Preparation of migration water for analysis of substances [Go to Page]
9.2.1 Introduction
9.2.2 Migration procedure
9.2.3 Second and third migration periods
9.2.4 Additional migration periods
9.3 Control samples (blank test)
10 Analysis
11 Calculation of test results [Go to Page]
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 [Go to Page]
12.1 General
12.2 General information
12.3 Information on the product
12.4 Information on the test procedure
12.5 Test results
Annex A (normative)Additional procedures for testing factory-made pipes (cement mortar lined and concrete) [Go to Page]
A.1 Sampling, test piece preparation and storage [Go to Page]
A.1.1 Sampling
A.1.2 Test piece preparation and storage [Go to Page]
A.1.2.1 General
A.1.2.2 Pipes sampled as finished products
A.1.2.3 Pipes sampled as fresh mortar
A.1.2.4 Pipes sampled as fresh concrete
A.2 Surface area to volume (S/V) ratio
A.3 Preconditioning of test pieces
A.4 Test procedure [Go to Page]
A.4.1 Migration procedure at 23 °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) [Go to Page]
B.1 Sampling, test piece preparation and storage [Go to Page]
B.1.1 Sampling of factory-made fittings
B.1.2 Test piece preparation and storage [Go to Page]
B.1.2.1 General
B.1.2.2 Production of equivalent-pipes
B.1.2.3 Equivalent pipes sampled as finished products
B.1.2.4 Fittings sampled as fresh mortar
B.1.2.5 Fittings sampled as fresh concrete
B.2 Surface area to volume (S/V) ratio
B.3 Preconditioning of test pieces
B.4 Test procedure [Go to Page]
B.4.1 Migration procedure at 23 °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) [Go to Page]
C.1 Sampling, test piece preparation and storage [Go to Page]
C.1.1 Sampling
C.1.2 Test piece preparation and storage [Go to Page]
C.1.2.1 General
C.1.2.2 Storage systems sampled as finished products
C.1.2.3 Storage systems sampled as fresh mortar
C.1.2.4 Storage systems sampled as fresh concrete
C.2 Surface area to volume (S/V) ratio
C.3 Preconditioning of test pieces
C.4 Test procedure [Go to Page]
C.4.1 Migration procedure at 23 °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 [Go to Page]
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 cement-based products
Annex F (normative)Additional procedures for testing factory-made cement based products at elevated temperature [Go to Page]
F.1 General
F.2 Test procedure at elevated temperature [Go to Page]
F.2.1 General
F.2.2 Preparation of migration water for analysis 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 [Go to Page]
G.1 Principle
G.2 Apparatus
G.3 Materials and reagents
G.4 Test procedure [Go to Page]
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 [Go to Page]
H.1 Preconditioning
H.2 Production of migration water at 23 °C
H.3 Typical Schedule [Go to Page]
H.3.1 Preconditioning
H.3.2 Production of migration waters
Annex I (informative)Procedural tests using standard additions (positive controls) [Go to Page]

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BS EN 14944-3:2023 - TC Tracked Changes. Influence of cementitious products on water intended for human consumption. Test methods - Migration of substances from factory-made cementititous products, 2024

⨯To continue with accurate pricing,
please select your company type below: