EN 14944-3:2007

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Vpliv cementnih proizvodov na pitno vodo - Preskusne metode - 3. del: Prehod snovi iz cementnih, tovarniško izdelanih proizvodovEinfluss zementgebundener Produkte auf Wasser für den menschlichen Gebrauch - Prüfverfahren - Teil 3: Migration von Substanzen aus fabrikmäßig hergestellten zementgebundenen ProduktenInfluence des produits a base de ciment sur l'eau destinée a la consommation humaine - Méthodes d'essais - Partie 3 : Migration de substances a partir des produits fabriqués en usineInfluence of cementitious products on water intended for human consumption - Test methods - Part 3: Migration of substances from factory-made cementititous products67.250Materiali in predmeti v stiku z živiliMaterials and articles in contact with foodstuffs13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 14944-3:2007SIST EN 14944-3:2009en,fr,de01-januar-2009SIST EN 14944-3:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14944-3December 2007ICS 13.060.20; 67.250; 91.100.10 English VersionInfluence of cementitious products on water intended for humanconsumption - Test methods - Part 3: Migration of substancesfrom factory-made cementititous productsInfluence des produits à base de ciment sur l'eau destinéesà la consommation humaine - Méthodes d'essais - Partie 3: Migration de substances à partir des produits fabriqués enusineEinfluss zementgebundener Produkte auf Wasser für denmenschlichen Gebrauch - Prüfverfahren - Teil 3: Migrationvon Substanzen aus fabrikmäßig hergestelltenzementgebundenen ProduktenThis European Standard was approved by CEN on 13 October 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14944-3:2007: ESIST EN 14944-3:2009

13 6.3.3
13 7 Samples and test pieces 13 7.1 Sampling, transport and storage of samples 13 7.2 Preparation of test pieces 13 7.2.1 General 13 7.2.2 Factory made pipes, fittings and storage systems 13 7.3 Surface area-to-volume ratio (S/V) for use in the test procedure 14 7.3.1 General 14 7.3.2 Pipes and fittings 14 7.3.3 Storage systems (cement mortar, cement mortar lined or concrete) 14 8 Pre-treatment of samples (curing, preconditioning and disinfection) 14 8.1 General 14 8.2 Curing 14 8.3 Preconditioning 14 8.3.1 General 14 8.3.2 Preconditioning without disinfection treatment 15 8.3.3 Preconditioning with disinfection treatment 15 9 Test procedure 15 9.1 General 15 9.2 Preparation of migration water for analysis of substances 15 SIST EN 14944-3:2009

Additional procedures for testing factory made pipes
(cement mortar lined and concrete) 19 A.1 Sampling, test piece preparation and storage 19 A.1.1 Sampling 19 A.1.2 Test piece preparation and storage 19 A.2 Surface area to volume (S/V) ratio 22 A.3 Pretreatment of test pieces (preconditioning and disinfection) 22 A.4 Test procedure 22 A.4.1 Migration procedure at 23 oC 22 A.4.2 Migration procedure at elevated temperature 22 A.5 Expression of results 23 A.6 Reporting 23 Annex B (normative)
Additional procedures for testing factory made fittings
(cement mortar lined and concrete) 24 B.1 Sampling, test piece preparation and storage 24 B.1.1 Sampling of Factory made fittings 24 B.1.2 Test piece preparation and storage 24 B.2 Surface area to volume (S/V) ratio 27 B.3 Pre-treatment of test pieces (preconditioning and disinfection) 27 B.4 Test procedure 28 B.4.1 Migration procedure at 23
C 28 B.4.2 Migration procedure at elevated temperature 28 B.5 Expression of results 28 B.6 Reporting 28 Annex C (normative)
Additional procedures for testing factory made storage systems
(cement mortar, cement mortar lined and concrete) 29 C.1 Sampling, test piece preparation and storage 29 C.1.1 Sampling 29 C.1.2 Test piece preparation and storage 29 C.2 Surface area to volume (S/V) ratio 32 C.3 Pretreatment of test pieces (preconditioning and disinfection) 32 C.4 Test procedure 32 C.4.1 Migration procedure at 23 °C 32 C.4.2 Migration procedure at elevated temperature 32 C.5 Expression of results 32 C.6 Reporting 32 Annex D (informative)
Examples of typical test pieces and test conditions as a function of S/V ratio 33 SIST EN 14944-3:2009

Test arrangements for testing factory made cementitious products 38 Annex F (normative)
Additional procedures for testing factory made cementitious
products at elevated temperature 45 F.1 General 45 F.2 Test procedure at elevated temperature 45 F.2.1 General 45 F.2.2 Preparation of migration water for the assessment of migration of substances 45 F.3 Control samples (blank test) 45 F.4 Expression of results 45 F.5 Reporting 45 Annex G (informative)
Discrimination between porous and non-porous coatings on factory made products 46 G.1 Principle 46 G.2 Apparatus 46 G.2.1 stainless steel plates 46 G.2.2 cylinders 46 G.2.3 pH meter 46 G.3 Materials and reagents 46 G.3.1 sealing compound/sealant 46 G.3.2 demineralized water 46 G.4 Test procedure 46 G.4.1 General 46 G.4.2 Laboratory blank 46 G.4.3 Coated product 47 G.5 Determination of pH 47 G.6 Expression of results 47 G.7 Classification criteria 48 Annex H (informative)
Schematic description of the test procedure 49 H.1 Preconditioning 49 H.2 Production of migration water at 23 C 50 H.3 Typical Schedule 51 H.3.1 Preconditioning 51 H.3.2 Production of migration waters 51 Annex I (informative)
Procedural tests using standard additions (positive controls) 52 Bibliography 53
1) The work on Part 2 of EN 14944 has not yet begun. 2) The work on Part 4 of EN 14944 has not yet begun. SIST EN 14944-3:2009

1 Scope This European Standard specifies a method to determine the migration of substances from factory made cementitious products into 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 intended for human consumption, including raw water used for the production of drinking water. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 196-1, Method of testing cement — Part 1: Determination of strength EN 1015-2, Method of test for mortar for masonry — Part 2: Bulk sampling of mortars and preparation of test mortars EN 1015-11, Methods of test for mortar for masonary - Part 11: Determination of flexural and compressive strength of hardened mortar EN 10088-1, Stainless steels — List of stainless steels EN 12350-1, Testing fresh concrete — Part 1: Sampling EN 12390-1, Testing hardened concrete — Part 1: Shape, dimensions and other requirements for specimens and moulds EN 12390-2, Testing hardened concrete — Part 2: Making and curing specimens for strength tests EN ISO 3696, Water for analytical laboratory use — Specification and test methods (ISO 3696:1987) EN ISO 7393-1, Water quality - Determination of free chlorine and total chlorine - Part 1: Titrimetric method using N, N-diethyl-1,4-phenylenediamine (ISO 7393-1:1985) EN ISO 7393-2, Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using N, N-diethyl-1, 4-phenylenediamine, for routine control purposes (ISO 7393-2:1985) ISO 10523, Water quality — Determination of pH 3 Terms and Definitions For the purpose of this European Standard, the following terms and definitions apply. 3.1 appropriate body certification body, inspection body or test laboratory, as relevant to a particular requirement 3.2 cementitious product factory made product containing a cementitious material supplied in the hardened state with a formed surface prior to its incorporation into the construction works 3.3 cementitious material material that contains a hydraulic cement in sufficient proportion to act as the main binder by forming a hydrate structure that governs the performance of the material SIST EN 14944-3:2009

This applies to either the internal diameter (DN/ID) or the external diameter (DN/OD) 3.14 preconditioning succession of contact periods of a test piece with the preconditioning water (3.15) before contact with the test water 3.15 preconditioning water water used for preconditioning prepared as described in 5.3.1 SIST EN 14944-3:2009

See normative Annex A, Annex B and Annex C. 3.21 demineralized water water conforming to the requirements in EN ISO 3696 for Grade 3 4 Principle Each test piece is subjected to a specified preconditioning procedure where the surface that is exposed in practice to water intended for human consumption, is brought into contact with preconditioning water during five sequential periods: three periods of 24 h, 1 period of 72 h and a final period of 24 h {with 50 mg/l Cl2 (5.2.2) if requested to simulate chlorine disinfection treatment}. The preconditioned test piece is then put in contact with test water, chlorinated and/or chlorine-free during three sequential migration periods.
A migration period is either: a)
72 h at (23 ± 2) °C for products intended to come into contact with chlorinated or chlorine-free cold water; b)
24 h at a specified elevated temperature for products intended to come into contact with warm or hot chlorine-free water. Migration rates are calculated after each contact period by determination of the content of specified substances in the corresponding migration water. NOTE 1 The test is carried out under conditions that ensure that reliable migration rates are calculated.
These conditions are not meant to simulate service conditions.
Relating the results obtained from this European Standard to the service condition is carried out using a conversion procedure.
This procedure will be specified in regulations. NOTE 2 The selection of: a)
appropriate test water, chlorinated and/or chlorine-free, from those made available in this European Standard; b)
temperature of the test water; c)
need for chlorination during preconditioning; is specified in product or system standards or in national or European regulations, as appropriate. SIST EN 14944-3:2009

The pH is determined in accordance with ISO 10523 and adjusted to 7,4 ± 0,1 by bubbling air and/or CO2 into the solution. NOTE The target total hardness is 200 mg/l as CaCO3 and the target alkalinity is 244 mg/l as HCO3-. 5.3.2 Test water, prepared by dissolving (110 ± 1) mg anhydrous calcium chloride (CaCl2), (140 ± 1) mg sodium hydrogen carbonate (NaHCO3) and (48 ± 1) mg sodium silicate (Na2SiO3.9H2O) in one litre of demineralized water. The pH is determined in accordance with ISO 10523 and adjusted to 7,0 ± 0,1 by bubbling air and/or CO2 into the solution. NOTE The target total hardness is 100 mg/l as CaCO3, the target alkalinity is 122 mg/l as HCO3- and the silica concentration is 10 mg/l as SiO2. 5.3.3 Test water without chlorine content (chlorine-free), shall consist of a batch of test water (5.3.2) used for contact with test pieces and preparation of the blank water (3.18). 5.3.4 Test water with chlorine content (chlorinated), shall consist of test water (5.3.2) with a free chlorine content of (1,0 ± 0,2) mg/l as Cl2, determined in accordance with either EN ISO 7393-1 or EN ISO 7393-2, after addition of sodium hypochlorite solution (5.2.1). 5.4 Cleaning liquids for apparatus Use one of the following cleaning liquids: — non-perfumed biodegradable detergent; — hydrochloric acid, 2 mol/l; — nitric acid, 10 % or 1,5 mol/l. 6 Apparatus 6.1 General For cleaning the glassware, and appropriate apparatus, before use, the following general requirements apply: a)
Clean the glassware to be used, using detergent (5.4).
Rinse the glassware in demineralized water. SIST EN 14944-3:2009

Clean the inner surface of the glassware with hydrochloric acid (5.4) and rinse it with demineralized water.
For stainless steel, clean with nitric acid (5.4) and then rinse with demineralized water. c)
Before use, rinse the glassware, and appropriate apparatus, at least three times using preconditioning water before preconditioning (8.3) or test water before the test procedure (clause 9). 6.2 Apparatus and materials for test piece preparation (see normative Annex A, B and C) 6.2.1 Stainless steel plates and cylinders 6.2.1.1 Stainless steel Stainless steel shall be austenitic, super austenitic or duplex grades in accordance with the corresponding numerical designations, 1.4301, 1.4436, 1.4429, 1.4259 or 1.4462 in EN 10088-1 for stainless steels. NOTE The grades above are specified for the use of stainless steel as reinforcement in concrete.
Therefore they are considered to be inert when used in contact with cementitious proxy samples (see normative Annex A, Annex B and Annex C of this European Standard). 6.2.1.2 Plates To provide a sufficient volume of migration water for assessment, the surface area of one face of a plate should be between 10 000 mm2 and 90 000 mm2.
The length/width of the plates should be selected to be consistent with the dimensions of the test container and the volume of test water in which they will be immersed. 6.2.1.3 Cylinders The diameter and length of a cylinder should be consistent with the dimensions of the test piece (see normative Annex A, Annex B or Annex C and informative Annex D and Annex E) and the volume of test water appropriate to the specified S/V ratio given in 7.3. 6.2.2 Glass cylinders The diameter and length of a glass cylinder should be consistent with the dimensions of the test piece (see normative Annex A, Annex B or Annex C and informative Annex D and Annex E) and the volume of test water appropriate to the specified S/V ratio given in 7.3.
Glass cylinders should be provided with suitable external (opaque) shielding for use during migration procedures (test pieces and blanks), in order to minimize exposure of migration waters to ambient light. 6.2.3 Moulds for forming test pieces Moulds for forming prisms of mortar shall conform to the requirements of EN 196-1, as specified for use in EN 1015-11, or to EN 12390-1 for forming cubes/cylinders of concrete, with modifications to materials and dimensional tolerances as specified by the appropriate normative Annex A, Annex B or Annex C of this European Standard. Clean moulds and any filling frame used with a mould, by thoroughly washing with non-perfumed detergent (5.4) and tap water (3.20), rinsing with copious amounts of tap water, followed by a final rinse with demineralized water (3.21) and dry before use. Where a factory made cementitious product has been formed in a process where its entire contact surface has been in contact with a release agent then where proxy samples (3.6) are used, the same release agent shall be applied to the internal surfaces of the mould, otherwise use of release agents is not permitted by this European Standard. 6.3 Apparatus and materials for preconditioning and migration procedure 6.3.1 Vessels, containers, stoppers and connectors shall consist of a material, such as glass, PTFE or stainless steel that is inert under the specified test conditions (clause 9).
Thus PTFE is unsuitable for containers. 6.3.2 Equipment, capable of maintaining the test temperature within ± 2 °C for the duration of the test. 6.3.3 Where required, use only sealants that do not affect the determinations under the specified test conditions (see clause 9). 7 Samples and test pieces 7.1 Sampling, transport and storage of samples Carry out sampling of factory made products in accordance with the relevant product standard, system standard or the national or European regulations, or the relevant normative annex to this European Standard, as appropriate. Take care that the transport conditions do not influence the test results. If it is necessary to store samples or test pieces before testing, ensure that they are protected from contamination taking into account any written instructions that are provided. When appropriate, clean storage containers using the same procedures as are used for the test containers. Ensure that the surfaces of the test pieces intended to come in contact with the test water are free from any contamination e.g. adhesive tape, labels, ink or pencil marks. 7.2 Preparation of test pieces 7.2.1 General Prepare the test pieces in such a way that only the surface intended to come into contact with drinking water is exposed to the test water except as given in normative Annex C (see C.1.2.3.2.1) where stainless steel plates are coated with cement mortar on one face only prior to complete immersion during testing. In the preparation of a test piece the following general principles apply: a)
ensure that test pieces are representative of the finished product;
b)
during the preparation of test pieces, include any procedures that are performed in practice for curing and cleaning; c)
ensure that the minimum age of the test piece, at test, conforms to that recommended by the manufacturer for the product to be ready for use; d)
ensure that the surface area of the test piece is sufficient to fulfil the appropriate surface area to volume (S/V) ratio in accordance with the requirements of 7.3. 7.2.2 Factory made pipes, fittings and storage systems Where possible, use the sample or test piece as the test vessel, with dimensions that provide sufficient migration water for assessment.
In cases where this is not practicable (e.g. large pipes, storage systems etc.), and where alternatives are specified, use as appropriate, an alternative test piece described in the relevant normative Annex A, Annex B or Annex C of this European Standard and an appropriate test arrangement given in informative Annex E. NOTE Where it is required to discriminate between porous and non-porous coatings already applied to factory made products, use the test procedure given in informative Annex G of this European Standard. SIST EN 14944-3:2009

surface area to volume ratio (S/V) of the test piece exposed to the test water shall not be smaller than the S/V ratio of the product in the service condition; b)
where no difference in material composition and production process exists in the range of sizes produced, only the largest S/V ratio is required to be tested; c)
ratio of the surface area, S, of the test piece intended to come into contact with volume, V, of the test water is expressed per decimetre, i.e. dm-1. NOTE The unit, dm-1, can also be expressed as dm2/dm3 or dm2/l. 7.3.2 Pipes and fittings The S/V ratio is calculated, in dm-1, according to the formula: []IDDNVS/400/= (1) where [DN/ID] (3.8) is the nominal internal diameter, in mm.
Test pipes and fittings of DN/ID less than 80, at the actual S/V ratio of the pipe diameter. Test pipes and fittings of DN/ID equal to 80 and less than 300, at an S/V ratio of (5,0 ± 0,2) dm-1. Test pipes and fittings of DN/ID 300 or greater, at an S/V ratio of (1,3 ± 0,1) dm-1. NOTE But see 7.3.1 (b) for the acceptable minimum requirement for testing pipes that are produced in a range of sizes. 7.3.3 Storage systems (cement mortar, cement mortar lined or concrete) Test storage systems at an S/V ratio of (1,3 ± 0,1) dm-1. 8 Pre-treatment of samples (curing, preconditioning and disinfection) 8.1 General The procedures for curing cementitious products are given in 8.2. The procedures for preconditioning and disinfection at (23 ± 2) °C are given in 8.3. 8.2 Curing Ensure that test pieces have been subject either to the curing conditions used in manufacture of the factory made product or, in the case of test pieces formed from proxy samples (3.6), to curing conditions that are representative of those used in the manufacture of the factory made product (see the relevant normative Annex A, Annex B or Annex C of this European Standard). 8.3 Preconditioning 8.3.1 General Precondition test pieces at the appropriate S/V ratio given in 7.3. SIST EN 14944-3:2009

If it is not required, follow the procedure in 8.3.2. 8.3.2 Preconditioning without disinfection treatment Fill test pieces with, or immerse them in, or otherwise bring them into contact with (see the test arrangements in informative Annex E), preconditioning water (5.3.1) for a succession of five contact periods, without rinsing between contact periods, at a temperature of (23 ± 2)°C as follows: —
three periods of (24 ± 1) h; —
one period of (72 ± 1) h; —
one period of (24 ± 1) h. After the fifth contact period, determine the pH of the preconditioning water in accordance with ISO 10523.
If the pH exceeds 9,5 stop the testing. NOTE 1 Where the pH exceeds 9,5 preconditioning may be repeated using new test pieces. NOTE 2 The results of co-normative research [2] obtained using this preconditioning water indicate that where the pH exceeds 9,5 after the fifth contact period, steps should be taken to first investigate and then eliminate the cause(s) before proceeding to the test procedure (see clause 9). 8.3.3
Preconditioning with disinfection treatment Carry out preconditioning as described in 8.3.2 but for the final 24 h contact period replace the preconditioning water by the disinfection treatment water (5.2.2). After contact with the disinfection treatment water determine the pH in accordance with ISO 10523.
If the pH exceeds 9,5 stop the testing. If the pH is less than or equal to 9,5 rinse the test piece by filling it or immersing it in fresh preconditioning water (5.3.1) at room temperature in order to remove excess free chlorine. Carry out this rinsing operation, at least five times, continuing until the level of free chlorine detected in the rinse water reaches a constant value.
The total duration of rinsing shall not exceed 1 h. NOTE 1 See NOTE 1 in 8.3.2. NOTE 2 See NOTE 2 in 8.3.2. 9 Test procedure 9.1 General Where testing of products intended to come into contact with chlorinated or chlorine-free cold water is required, carry out the following procedures described in 9.2. Where testing at elevated temperature is required carry out the procedure in accordance with normative Annex F. 9.2 Preparation of migration water for analysis of substances NOTE The number of tests to be carried out e.g. single tests or duplicates for each water type is specified in product or system standards or in national or European regulations, as appropriate. 9.2.1 Migration procedure Begin the first contact period immediately after preconditioning the test piece. In all cases, (immersion, filling or other contact arrangement), ensure that the test piece or vessel/container is completely immersed or filled.
Minimize headspace in order to minimize contact between the test water and air.
Use a lid or cover for the vessel/container.
At the end of this period, collect the migration water for analysis of migrated substances using appropriate sampling bottles. SIST EN 14944-3:2009

Refer to Annex H for further guidance on the sequence and number of migration periods that can be specified. 9.3 Control samples (blank test) For each contact period, carry out a blank test procedure using the same test conditions (test water, test temperature, contact periods, sealants used etc.) as described in 9.2 but omitting the test piece or replacing it by a glass container or plate, as appropriate. Antimony can be present in cementitious products but can also migrate from glass at elevated pH.
When antimony is detected in migration water in contact with the test piece but not in blank water which has a lower pH, adjust the blank to the final pH measured in the migration water and repeat the blank test in order to achieve a valid blank control. 10 Analysis Carry out the required analysis on the migration waters using the analytical methods specified in referring documents.
Determine at the end of each extraction period the concentration of the substance being measured.
General guidance on analytical performance requirements such as detection limit and accuracy is contained in Guide to analytical Quality Control for water analysis, ENV ISO 13530 [3]. NOTE 1 If migration waters are not analyzed immediately, then ensure that the storage time and conditions do not adversely affect the analytical result. NOTE 2 For some analytical methods and/or specific test procedures, recovery rates for the substances being determined need to be established using positive controls.
Annex I gives further guidance. 11 Calculation of test results 11.1 Calculation of the concentration of the substances in the migration water NOTE The migration of substances into water depends on the type of material and the migration conditions: temperature, contact time, S/V ratio and whether the water is static or flowing.
For static test conditions and constant temperature, the increase in the concentration of the substance in the test water is asymptotic.
However, for practical purposes the increase with time is assumed to be linear. Calculate for each migration water the concentration of the measured substance as follows: TnTnTnb a c−= (2) where
cTn
is the concentration of the measured substance in mg/l; aTn
is the concentration of the substance in mg/l measured in the migration water; bTn
is the concentration of the substance in mg/l measured in the blank water. For the conditions T
is the test temperature; n
is the sequence number of the migration period. SIST EN 14944-3:2009

(S/V .t)c
MTnTn= (3) where MTn
is the migration rate for the n’th migration period in mg.dm-2.day-1; t
is the duration of the migration period in days i.e. three days (72 ± 1) h for (23 ± 2) °C; S/V is the surface area-to-volume ratio in dm-1. 11.3 Calculation of the mean migration rate Calculate the arithmetic mean migration rate TnM for replicate values of MTn for each test water (5.3.3 and 5.3.4). 12 Test report
12.1 General information The test report shall include the following information: a)
date of issue; b)
name and address of testing laboratory and location where the test was carried out when different from the address of the testing laboratory; c)
unique identification of report (such as serial number) and of each page, and total number of pages; d)
name and address of client; e)
description and identification of the sample/test piece; f)
signature and title or equivalent marking of person(s) accepting technical responsibility for the test report and date of issue; g)
statement to the effect that the test results relate only to the test piece(s) tested; h)
statement that the report shall not be reproduced except in full without the written approval of the testing laboratory. 12.2 Information on the product The test report shall include the following information: a)
trade name or designation of the factory made/manufactured product; b)
complete identification and date of receipt of sample/test piece; c)
details of the test piece preparation; d)
name of the manufacturer for the product, the place of manufacture and date and, where relevant, the body submitting the sample and, where relevant, the body responsible for preparing the samples/test pieces; e)
description of sampling procedure, where relevant. SIST EN 14944-3:2009

reference to this European Standard and to the referring product or system standard or national or European regulation as appropriate; b)
dates of start and completion of the test; c)
number of test pieces used together in the migration procedure; d)
volume of the test water (V) in litres; e)
surface area of test piece exposed to the test water, S, in square decimetres calculated from the actual dimensions of the test pieces; f)
actual S/V ratio used in the procedure; g)
disinfection procedure (if applicable); h)
test waters and test temperature; i)
any deviation from the test procedure specified in this standard; j)
any factors which may have affected the results, such as any incidents or any operating details not specified in this European Standard. 12.4 Test results The test report shall include the following information: a)
number of tests carried out; b)
test results and calculated values reported in tabular form (see example below); c)
European Standard for the analytical method used to produce the test results; d)
general performance of the analytical method in the European Standard e.g. limit of detection, precision estimates, statement of uncertainty etc. Table 1- Example of Test Result presentation Sequence number of migration period (n)
1 2 3 X1) 1
aTn 22)
bTn
cTn 22)
MTn 22)
TnM
1) Additional migration periods where specified. 2) Duplicates where specified.
Additional procedures for testing factory made pipes
(cement mortar lined and concrete) A.1 Sampling, test piece preparation and storage A.1.1 Sampling See also 7.1 and 7.2. Sample factory made cement mortar lined pipes and concrete pipes at the point of release of the factory as finished products, for preparation as test pieces. Where specified, pipes may be sampled indirectly as proxy samples (3.6) of the fresh mortar or concrete used in their manufacture, for preparation as test pieces. A.1.2 Test piece preparation and storage A.1.2.1 General Test pieces prepared from factory made cement mortar lined pipes or concrete pipes shall: a)
be one of the following: 1) complete pipes; 2) cylindrical sections of pipe sawn from complete pipes using tap-water-cooled/lubricated (3.20) sawing procedures; 3) blocks or cores sawn or cored from complete pipes using tap-water-cooled/lubricated (3.20) sawing or coring procedures; 4) proxy test pieces, where specified, prepared by the manufacturer from samples of fresh mortar or concrete (3.6) used in the manufacture of pipes, in accordance with either A.1.2.3 for mortar or A.1.2.4 for concrete, in order to provide hardened surfaces representative of the contact surface of the finished product; b)
be of sufficient surface area to fulfil the appropriate surface area to volume (S/V) ratio for the migration procedure, in accordance with the requirements of 7.3; c)
be of suitable general dimensions (see informative Annex D) e.g. length, surface area, diameter etc. to provide sufficient migration water for assessment; d)
have their surface area to volume (S/V) ratios (as required in the migration procedure; see 7.3), calculated using their nominal internal diameters (DN/ID) where cylindrical in section; e)
be suitably documented and identified and be free from any surface contamination e.g. adhesive tape, labels, ink or pencil marks; f)
be protected from contamination and mechanical damage in the factory using unused food grade packaging materials when it is necessary to store them prior to dispatch to the test laboratory; g)
be subject to comparable conditions for storage in the test laboratory as for storage in the factory; h)
be taken at the point of release, or in the case of proxy samples (3.6), be of a minimum age recommended by the manufacturer for the product to be ready for use, before any testing shall begin. SIST EN 14944-3:2009

Examples of dimensions for S/V ratios of 1,3 dm-1 and 5,0 dm-1 are given in Annex D, Table D.1. A.1.2.3 Pipes sampled as fresh mortar A.1.2.3.1 General Test pieces shall be prepared from proxy samples of the fresh mortar (3.8) used to line factory made pipes and be either spray-applied to stainless steel plates in accordance with A.1.2.3.2.1 or be cast as prisms in accordance with A.1.2.3.2.2. Hardened test pieces shall be monolithic, undamaged and representative in structure, composition and homogeneity of the fresh mortar from which they were prepared. Test arrangements, for using the test pieces in the migration procedure, shall be as given in A.1.2.3.2.3. A.1.2.3.2 Test pieces (fresh mortar) A.1.2.3.2.1 Coated plates Where test plates are specified, they shall be made by coating one face of a stainless steel plate (6.2.1.1) with the fresh mortar used in the manufacture of the pipe using the same process of application used in the factory.
In addition: a)
coated plate shall not be marked for identification purposes but shall be identified in an alternative traceable manner e.g. by mechanical marking on the rear of the test plate; b)
coated plate shall be placed in the vicinity of the pipe that it represents and shall undergo the same curing regime as that applied to the pipe; c)
after curing, the undamaged coated plate shall be stored under the same environmental conditions that apply to the finished pipe during storage at the factory until it reaches the minimum age recommended by the manufacturer for use of the pipe; d)
following the curing/storage period, the coated plate shall be placed in an unused food grade plastics bag and sealed.
A damaged plate shall be discarded. A.1.2.3.2.2 Prisms a)
Where test prisms are specified, they shall be prepared from the fresh mortar used in the manufacture of the pipe, sampled
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