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BS EN 14944-1:2023 – TC

BS EN 14944-1:2023 – TC

$258.95

Tracked Changes. Influence of cementitious products on water intended for human consumption. Test methods – Influence of factory made cementitious products on organoleptic parameters

Published By Publication Date Number of Pages
BSI 2023 140
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This European Standard specifies a method to determine the influence of factory made cementitious products on the odour, flavour, colour and turbidity of test waters after contact with the products. This European Standard is applicable to factory made cementitious products, e.g. cement mortar linings to metallic pipes, tanks, concrete pipes etc. intended to be used for the transport and storage of water for human consumption, including raw water used for the production of drinking water.

PDF Catalog

PDF Pages PDF Title
80 undefined
85 1 Scope
2 Normative references
86 3 Terms and definitions
89 4 Principle
90 5 Reagents
91 6 Apparatus
6.1 General
92 6.2 Apparatus and materials for test piece preparation (see Annexes A, B and C)
6.2.1 Stainless steel plates and cylinders
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
93 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
7.1 Sampling, transport and storage of samples
94 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
95 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)
8.1 General
96 8.2 Curing
8.3 Preconditioning
8.3.1 General
8.3.2 Preconditioning
9 Test procedure
9.1 General
9.2 Preparation of migration water for the assessment of odour, flavour, colour and turbidity
9.2.1 General
9.2.2 Migration procedure
97 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
98 11 Determination of colour and turbidity
12 Determination of TOC and calculation of test results
12.1 Determination of TOC
12.2 Calculation of test results
12.2.1 Calculation of TOC in the migration water
99 12.2.2 Calculation of the migration rate
12.2.3 Calculation of the mean migration rate
13 Expression of results
100 14 Test report
14.1 General
14.2 General information
14.3 Information on the product
14.4 Information on the test procedure
101 14.5 Test results
102 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.1.2.1 General
103 A.1.2.2 Pipes sampled as finished products
A.1.2.3 Pipes sampled as fresh mortar
104 A.1.2.4 Pipes sampled as fresh concrete
106 A.2 Surface area to volume (S/V) ratio
A.3 Preconditioning of test pieces
A.4 Test procedure
A.4.1 Migration procedure at 23 °C
A.4.2 Migration procedure at elevated temperature
A.5 Expression of results
A.6 Reporting
107 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.1.2.1 General
108 B.1.2.2 Production of equivalent-pipes
B.1.2.3 Fittings sampled as fresh mortar
110 B.1.2.4 Fittings sampled as fresh concrete
111 B.2 Surface area to volume (S/V) ratio
B.3 Preconditioning of test pieces)
B.4 Test procedure
B.4.1 Migration procedure at 23 °C
B.4.2 Migration procedure at elevated temperature
112 B.5 Expression of results
B.6 Reporting
113 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.1.2.1 General
114 C.1.2.2 Storage systems sampled as finished products
C.1.2.3 Storage systems sampled as fresh mortar
115 C.1.2.4 Storage systems sampled as fresh concrete
117 C.2 Surface area to volume (S/V) ratio
C.3 Preconditioning of test pieces
C.4 Test procedure
C.4.1 Migration procedures at 23 °C
C.4.2 Migration procedure at elevated temperature
C.5 Expression of results
C.6 Reporting
118 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
119 D.3 Test pieces to which a cylinder of stainless steel or glass is to be attached
120 D.4 Square test plates coated with mortar
121 D.5 Moulded test pieces where all faces are exposed to test water
123 Annex E (informative)Test arrangements for testing factory-made cement based products
130 Annex F (normative)Additional procedures for testing factory-made cement based 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 odour, flavour, colour and turbidity
131 F.3 Control samples (blank test)
F.4 Expression of results
F.5 Reporting
132 Annex G (informative)Discrimination between porous and non-porous coatings on factory-made products
G.1 Principle
G.2 Apparatus
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
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
G.4.1 General
G.4.2 Laboratory blank
133 G.4.3 Coated product
G.5 Determination of pH
134 G.6 Expression of results
G.7 Classification criteria
135 Annex H (informative)Schematic description of the test procedure
H.1 Preconditioning
H.2 Production of migration water for organoleptic assessment at 23 °C
137 H.3 Typical Schedule
H.3.1 Preconditioning
H.3.2 Production of migration waters

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BS EN 14944-1:2023 - TC
$258.95