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BS EN 14944-1:2023 - TC Tracked Changes. Influence of cementitious products on water intended for human consumption. Test methods - Influence of factory made cementitious products on organoleptic parameters, 2023
- A-30426948.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
- 6.4 Apparatus for odour and flavour assessment
- 6.5 Apparatus for colour and turbidity assessment
- 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
- 7.3.3 Fittings
- 7.3.4 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 [Go to Page]
- 8.3.1 General
- 8.3.2 Preconditioning
- 9 Test procedure [Go to Page]
- 9.1 General
- 9.2 Preparation of migration water for the assessment of odour, flavour, colour and turbidity [Go to Page]
- 9.2.1 General
- 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 Determination of odour as TON and flavour as TFN
- 11 Determination of colour and turbidity
- 12 Determination of TOC and calculation of test results [Go to Page]
- 12.1 Determination of TOC
- 12.2 Calculation of test results [Go to Page]
- 12.2.1 Calculation of TOC in the migration water
- 12.2.2 Calculation of the migration rate
- 12.2.3 Calculation of the mean migration rate
- 13 Expression of results
- 14 Test report [Go to Page]
- 14.1 General
- 14.2 General information
- 14.3 Information on the product
- 14.4 Information on the test procedure
- 14.5 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 Fittings sampled as fresh mortar
- B.1.2.4 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 procedures 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 the assessment of odour, flavour, colour and turbidity
- 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 [Go to Page]
- G.2.1 Square stainless steel plates, of dimensions between 10,000 mm2 and 25,000 mm2
- G.2.2 Cylinders, of stainless steel or glass of approximate length of 125 mm and approximate diameter 90 mm
- G.2.3 pH meter, capable of measuring to an accuracy of 0,1 pH units
- G.3 Materials and reagents [Go to Page]
- G.3.1 Sealing compound/sealant, conforming to 6.3.3
- G.3.2 Demineralized water, conforming to the requirements given in EN ISO 3696:1995, Grade 3
- 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 for organoleptic assessment at 23 °C
- H.3 Typical Schedule [Go to Page]
- H.3.1 Preconditioning
- H.3.2 Production of migration waters [Go to Page]