1、BRITISH STANDARDBS EN 14944-3:2007Influence of cementitious products on water intended for human consumption Test methods Part 3: Migration of substances from factory-made cementitious productsThe European Standard EN 14944-3:2007 has the status of a British StandardICS 13.060.20; 67.250; 91.100.10g
2、49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 14944-3:2007This British Standard was published under the authority of the Standards Policy and
3、 Strategy Committee on 31 January 2008 BSI 2008ISBN 978 0 580 53643 4National forewordThis British Standard is the UK implementation of EN 14944-3:2007.The UK participation in its preparation was entrusted to Technical Committee EH/6, Effects of materials on water quality.A list of organizations rep
4、resented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendment
5、s issued since publicationDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14944-3December 2007ICS 13.060.20; 67.250; 91.100.10English VersionInfluence of cementitious products on water intended for humanconsumption - Test methods - Part 3: Migration of substancesfrom factory-made ceme
6、ntititous productsInfluence des produits base de ciment sur leau destines la consommation humaine - Mthodes dessais - Partie 3: Migration de substances partir des produits fabriqus enusineEinfluss zementgebundener Produkte auf Wasser fr denmenschlichen Gebrauch - Prfverfahren - Teil 3: Migrationvon
7、Substanzen aus fabrikmig 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 wi
8、thout 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
9、 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,Fran
10、ce, 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 STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NOR
11、MUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14944-3:2007: EEN 14944-3:2007 (E) 2 Contents Page Contents 2 Foreword 5 Introduction 7 1 Scope 8 2 Normative references
12、8 3 Terms and Definitions 8 4 Principle 10 5 Reagents 11 5.1 General requirements 11 5.2 Disinfection reagents 11 5.2.1 Sodium hypochlorite solution 11 5.2.2 Disinfection treatment water 11 5.3 Waters to be used for testing 11 5.3.1 Preconditioning water 11 5.3.2 Test water 11 5.3.3 Test water witho
13、ut chlorine content (chlorine-free) 11 5.3.4 Test water with chlorine content (chlorinated) 11 5.4 Cleaning liquids for apparatus 11 6 Apparatus 11 6.1 General 11 6.2 Apparatus and materials for test piece preparation (see normative Annex A, Annex B and Annex C) 12 6.2.1 Stainless steel plates and c
14、ylinders 12 6.2.2 Glass cylinders 12 6.2.3 Moulds for forming test pieces 12 6.3 Apparatus and materials for preconditioning and migration procedure 12 6.3.1 Vessels, containers, covers, connectors and stoppers 12 6.3.2 13 6.3.3 13 7 Samples and test pieces 13 7.1 Sampling, transport and storage of
15、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 co
16、ncrete) 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
17、 Preparation of migration water for analysis of substances 15 EN 14944-3:2007 (E) 3 9.2.1 Migration procedure 15 9.2.2 Second and third migration periods 16 9.2.3 Additional migration periods 16 9.3 Control samples (blank test) 16 10 Analysis 16 11 Calculation of test results 16 11.1 Calculation of
18、the concentration of the substances in the migration water 16 11.2 Calculation of the migration rate of the measured substances 17 11.3 Calculation of the mean migration rate 17 12 Test report 17 12.1 General information 17 12.2 Information on the product 17 12.3 Information on the test procedure 18
19、 12.4 Test results 18 Annex A (normative) 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 Pretrea
20、tment 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 (cemen
21、t 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 procedu
22、re 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 pie
23、ce 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
24、 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 EN 14944-3:2007 (E) 4 D.1 General 33 D.2 Pipes and fittings 33 D.3 Test pieces to which a cylinder of stainless steel or glass is to b
25、e attached 34 D.4 Square test plates coated with mortar 35 D.5 Moulded test pieces where all faces are exposed to test water 35 Annex E (informative) Test arrangements for testing factory made cementitious products 38 Annex F (normative) Additional procedures for testing factory made cementitious pr
26、oducts 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
27、) Discrimination between porous and non-porous coatings on factory made products46 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
28、 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 Typi
29、cal 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 EN 14944-3:2007 (E) 5 Foreword This document (EN 14944-3:2007) has been prepared by Technical Committee CEN/TC 164 “
30、Water supply”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2008, and conflicting national standards shall be withdrawn at the latest by June 200
31、8. This European Standard is Part 3 of a series dealing with the influence of cementitious and associated non-cementitious products/materials on water intended for human consumption, including: Part 1 Influence of factory made cementitious products on organoleptic parameters; Part 21)Influence of si
32、te-applied cementitious materials and associated non-cementitious products/materials on organoleptic parameters; Part 3 Migration of substances from factory made cementitious products; Part 42)Migration of substances from site-applied cementitious materials and associated non-cementitious products/m
33、aterials. This European Standard will result in one of a series of standards that support appropriate standards. It describes a test method to produce migration waters for the assessment of inorganic and organic substances. Annex A, which is normative, describes additional procedures for testing fac
34、tory made pipes (cement mortar lined and concrete). Annex B, which is normative, describes additional procedures for testing factory made fittings (cement mortar lined and concrete). Annex C, which is normative, describes additional procedures for testing factory made storage systems (cement mortar,
35、 cement mortar lined and concrete). Annex D, which is informative, provides examples of typical test pieces and test conditions as a function of S/V ratio. Annex E, which is informative, describes test arrangements for testing factory made cementitious products. Annex F, which is normative, describe
36、s additional procedures for testing factory made cementitious products at elevated temperature. Annex G, which is informative, provides a means of discriminating between porous and non-porous coatings on factory made products. Annex H, which is informative, provides a schematic description of the te
37、st (preconditioning and migration) procedure. Annex I, which is informative, gives recommendations for procedural tests using standard additions (positive controls). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENEL
38、EC shall not be held responsible for identifying any or all such patent rights. 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. EN 14944-3:2007 (E) 6 According to the CEN/CENELEC Internal Regulations, the national standards organizations of t
39、he following countries are bound to implement this European Standard: 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, Slovak
40、ia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 14944-3:2007 (E) 7 Introduction With respect to any potential adverse effects of products and materials on the quality of water intended for human consumption, it should be understood that relevant national regulations remain in for
41、ce until verifiable European acceptance criteria are adopted. EN 14944-3:2007 (E) 8 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 applicabl
42、e 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 foll
43、owing 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
44、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 stai
45、nless 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 analyti
46、cal 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
47、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 appropr
48、iate 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 c
49、ementitious 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 EN 14944-3:2007 (E) 9 3.4 associated non-cementitious product product that is applied to the surface of a cementitious product, directly or indirectly, during manufacture (or construction) and that either provides a porous seal to the product or remains as a residue in contact with water EXAMPLE Porous seal coats, formwork release agents and curing comp
