BS EN 12873-1-2014 Influence of materials on water intended for human consumption Influence due to migration Test method for factory-made products made from or incorporating organis.pdf

1、BSI Standards PublicationBS EN 12873-1:2014Influence of materials onwater intended for humanconsumption Influence dueto migrationPart 1: Test method for factory-madeproducts made from or incorporatingorganic or glassy (porcelain/vitreous enamel)materialsBS EN 12873-1:2014 BRITISH STANDARDNational fo

2、rewordThis British Standard is the UK implementation of EN 12873-1:2014.It supersedes BS EN 12873-1:2003 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee EH/6, Effects of materials on water quality.A list of organizations represented on this committee ca

3、n beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 78965 6ICS 13.060.20; 67.250

4、Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 July 2014.Amendments issued since publicationDate Text affectedBS EN 12873-1:2014EUROPEAN STANDARD NORME EUROPEN

5、NE EUROPISCHE NORM EN 12873-1 July 2014 ICS 13.060.20; 67.250 Supersedes EN 12873-1:2003English Version Influence of materials on water intended for human consumption - Influence due to migration - Part 1: Test method for factory-made products made from or incorporating organic or glassy (porcelain/

6、vitreous enamel) materials Influence des matriaux en contact sur leau destine la consommation humaine - Influence de la migration - Partie 1: Mthode dessai des matriaux de fabrication industrielle constitus de ou contenant des matriaux organiques ou vitreux (maux vitrifis) Einfluss von Materialien a

7、uf Trinkwasser - Einfluss infolge der Migration - Teil 1: Prfverfahren fr fabrikmig hergestellte Produkte aus oder mit organischen oder glasartigen Materialien (Emails/Emaillierungen) This European Standard was approved by CEN on 14 May 2014. CEN members are bound to comply with the CEN/CENELEC Inte

8、rnal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any

9、 CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official ve

10、rsions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway

11、, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploit

12、ation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12873-1:2014 EBS EN 12873-1:2014EN 12873-1:2014 (E) 2 Contents Page Foreword 4 Introduction . 5 1 Scope 6 2 Normative references 6 3 Terms and definitions . 6 4 Principle 8 5 Reagents . 8 5.1 Waters to be use

13、d for testing . 8 5.2 Cleaning liquids for glassware . 9 5.3 Other reagents . 9 6 Apparatus . 9 7 Test samples and test pieces . 9 7.1 Sampling, transport and storage of test samples 9 7.2 Test piece preparation 10 7.2.1 General 10 7.2.2 Pipes and hoses. 10 7.2.3 Fittings and ancillaries 10 7.2.4 Fa

14、ctory applied linings (excluding glassy materials) 11 7.2.5 Geomembranes 11 7.2.6 Glassy materials 11 7.2.7 Other homogeneous products . 11 7.2.8 Other non-homogeneous products . 11 7.3 Surface area-to-volume ratio (S/V) . 12 8 Pre-treatment of test pieces . 12 8.1 General 12 8.2 Test pieces to be t

15、ested at (23 2) C (Cold water test) 12 8.2.1 Flushing 12 8.2.2 Stagnation with test water 12 8.3 Test pieces to be tested at elevated temperature (60 C and/or 85 C) 13 8.3.1 Flushing 13 8.3.2 Stagnation with test water at elevated temperature . 13 8.4 Prewashing . 13 9 Test procedure . 13 9.1 Migrat

16、ion of substances . 13 9.1.1 General 13 9.1.2 Cold water test procedure 13 9.1.3 Elevated temperature test procedure 14 9.2 Procedural blank tests 14 9.3 Analysis 14 10 Calculation of test results . 14 10.1 Calculation of the concentration of the substances in the migration water . 14 10.2 Calculati

17、on of the migration rate of the measured substances 15 11 Test report 15 11.1 Content of the test report 15 11.2 General information . 15 BS EN 12873-1:2014EN 12873-1:2014 (E) 3 11.3 Information on the test procedure . 16 11.4 Test results 17 Annex A (normative) Arrangement for flushing pipes with n

18、ominal size greater than DN 80 18 Annex B (informative) Additional procedures for testing non-homogeneous products and pipes with nominal size greater than DN 80 21 B.1 Arrangements for testing 21 B.2 Flushing of the test piece . 21 B.3 Blank test 21 B.4 Sealing 21 B.5 Calculation of the surface are

19、a-to-volume ratio (S/V) value for test arrangement 1 24 Annex C (informative) Examples of extended collection and analysis of migration waters . 26 Annex D (informative) Procedural tests using standard additions (positive controls) . 28 Annex E (informative) Flow diagrams for migration test procedur

20、e for cold water temperature and elevated temperature 29 Annex F (informative) Description of a cell system for testing glassy materials . 31 Bibliography 33 BS EN 12873-1:2014EN 12873-1:2014 (E) 4 Foreword This document (EN 12873-1:2014) has been prepared by Technical Committee CEN/TC 164 “Water su

21、pply”, 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 January 2015, and conflicting national standards shall be withdrawn at the latest by January 2015.

22、 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12873-1:2003. The major revisions of EN 12873-1:2003 are:

23、 the inclusion of procedures for testing glassy (porcelain/vitreous enamel) materials. This inclusion enabled an improvement of the title of the standard; the test temperatures, outlined in Clause 4 Principle, are more specific; the use of chromic acid is removed because of safety concerns; the exam

24、ples of extended collection and analysis of migration waters (Annex C) are more systematic. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, C

25、zech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United King

26、dom. BS EN 12873-1:2014EN 12873-1:2014 (E) 5 Introduction In respect of potential adverse effects on the quality of water intended for human consumption caused by the materials, it is called to mind that, while awaiting the adoption of verifiable European acceptance criteria, the relevant national r

27、egulations remain in force. This European Standard has been drawn up with the objective to describe a test method to determine the migration of substances from products made from, or incorporating, organic and glassy (porcelain/vitreous enamel) material for use in contact with water intended for hum

28、an consumption. Annex A, which is normative, describes an alternative arrangement for flushing pipes having a nominal size greater than DN 80. Annex B, which is informative, describes additional procedures for testing non-homogeneous products and pipes having a nominal size greater than DN 80. Annex

29、 C, which is informative, describes a schedule for the preparation of migration waters. Annex D, which is informative, describes procedural tests using standard additions (positive controls). Annex E, which is informative, describes the migration test procedure in a schematic manner. Annex F, which

30、is informative, provides information on a Cell system for testing glassy materials. This European Standard will result in one of a series of standards on test methods which support the appropriate standards. This standard, Part 1, is the first in a series of standards for dealing with the influence

31、of migration from materials on water intended for human consumption, including: Part 1: Test method for factory-made products made from or incorporating organic and glassy (porcelain/vitreous enamel) materials; Part 2: Test method for non-metallic and non-cementitious site-applied products; Part 3:

32、Test method for ion exchange and absorbent resins; Part 4: Test method for membrane water treatment systems. BS EN 12873-1:2014EN 12873-1:2014 (E) 6 1 Scope This European Standard specifies a procedure to determine the migration of substances from factory-made or factory-applied products for use in

33、contact with water intended for human consumption. Materials used to make such products include plastics, rubber and glassy (porcelain/vitreous enamel) materials. This European Standard is applicable to products intended to be used under various conditions for the transport and storage of water inte

34、nded for human consumption, including raw water used for the production of water intended for human consumption. It covers the extraction by water of substances from the finished products. 2 Normative references The following documents, in whole or in part, are normatively referenced in this documen

35、t and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 15826, Vitreous and porcelain enamels - Terminology EN ISO 7393-2, Water quality - Determina

36、tion of free chlorine and total chlorine - Part 2: Colorimetric method using N, N-diethyl-1, 4-phenylenediamine, for routine control purposes (ISO 7393-2) EN ISO 28764, Vitreous and porcelain enamels - Production of specimens for testing enamels on sheet steel, sheet aluminium and cast iron (ISO 287

37、64) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 test technical operation that consists of the determination of one or more characteristics of a given product 3.2 test procedure specified technical method for performing a test 3.3 test rep

38、ort document that presents test results and other information relevant to a test 3.4 test laboratory laboratory that performs tests 3.5 product manufactured item, in its finished form, that comes into contact with water intended for human consumption, or a component part of a manufactured item 3.6 h

39、omogeneous product a product where the water contact surface is made from the same material as the remainder of the product BS EN 12873-1:2014EN 12873-1:2014 (E) 7 3.7 non-homogeneous product product where the water contact surface is made from a material that differs from those comprising the remai

40、nder of the product 3.8 fitting, ancillary complete functional unit made up of one or more components or materials, parts of which are in contact with water, e.g. taps, valves, water meters, water heaters, water filters, pipe connectors and flexible hose assemblies 3.9 test sample sample of a produc

41、t submitted for testing 3.10 test piece test sample, or a part of it, that is tested 3.11 tap water water intended for human consumption (see also 5.1.1) 3.12 test water water used for migration testing (5.1.2 and 5.1.3) 3.13 prewashing water water used for prewashing (5.1.4) 3.14 blank water test w

42、ater (5.1.2 and 5.1.3) which has been kept at the same specified conditions as migration water (3.18) but without contact with test pieces 3.15 migration period period of time (24 h or 72 h, see Clause 4) in which the migration is carried out under specified conditions 3.16 migration movement of a s

43、ubstance or substances from test pieces into test water 3.17 migration water test water after exposure to a test piece under specified conditions 3.18 migration rate the mass of a measured substance or substances (in mg) migrating from one square decimetre of a test piece into the test water in one

44、day at a specified temperature (C) 3.19 lining layer of material applied to a product and intended to come into contact with drinking water, e.g. the inside surfaces of pipes, fittings or storage vessels BS EN 12873-1:2014EN 12873-1:2014 (E) 8 Note 1 to entry: Excluded are layers, such as coatings,

45、not intended for contact with drinking water, e.g. as applied to the outside surfaces of pipes and fittings for corrosion protection. 3.20 geomembranes flexible water impermeable membranes normally used to avoid draining of stored water into surrounding soil and sub-soil strata 3.21 glassy material

46、porcelain, vitreous enamel coating (as defined in EN 15826) that is in contact with water and applied to a variety of products that produce or store water at elevated temperature 4 Principle Each test piece is subjected to a specified pre-treatment procedure of stagnation and prewashing. The surface

47、 of the test piece that is exposed in practice to water intended for human consumption, is brought into contact with test water during at least three sequential migration periods. A migration period is either: 72 h at (23 2) C for products intended to come into contact with cold water; 24 h at a spe

48、cified temperature at (60 2) C (warm water test) and/or (85 2) C (hot water test) for products intended to come into contact with warm or hot water. Migration rates for the first three migration periods are determined by analysis of the required substances in the corresponding migration waters. Refe

49、rring product standards and/or national regulatory authorities may specify the number of sequential migration periods to be carried out. NOTE 1 The test is carried out under conditions to ensure that calculation of a reliable migration rate is facilitated. These conditions are not meant to simulate real use conditions. Relating the results obtained from this standard to real use conditions is carried out using a conversion procedure. This procedure will be specified in product standards or national regulations. NOTE 2 The c