EN 12873-2-2005 en Influence of materials on water intended for human consumption Influence due to migration Part 2 Test method for non-metallic and non-cementitious site-applied m.pdf
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1、BRITISH STANDARD BS EN 12873-2:2005 Influence of materials on water intended for human consumption Influence due to migration Part 2: Test method for non-metallic and non-cementitious site-applied materials The European Standard EN 12873-2:2005 has the status of a British Standard ICS 13.060.20; 67.
2、250 BS EN 12873-2:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 18 February 2005 BSI 18 February 2005 ISBN 0 580 45516 5 National foreword This British Standard is the official English language version of EN 12873-2:2005. The UK partic
3、ipation in its preparation was entrusted to Technical Committee EH/6, Effects of materials on water quality, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement inte
4、rnational or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not pur
5、port to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committ
6、ee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 28,
7、 an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN128732 February2005 ICS13.060.20;67.250 Englishversion I
8、nfluenceofmaterialsonwaterintendedforhumanconsumption InfluenceduetomigrationPart2:Testmethodfornon metallicandnoncementitioussiteappliedmaterials Influencesurleaudesmatriauxdestinsentreren contactavecleaudestinelaconsommationhumaine InfluencedelamigrationPartie2:Mthodedessaides matriauxappliqussurs
9、iteexceptlesmatriaux mtalliquesetceuxbasedeciment EinflussvonMaterialienaufTrinkwasserEinflussinfolge derMigrationTeil2:PrfverfahrenfrvorOrt aufgebrachtenichtmetallischeundnichtzementgebundene Materialien ThisEuropeanStandardwasapprovedbyCENon3January2005. CENmembersareboundtocomplywiththeCEN/CENELE
10、CInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthre
11、eofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,E
12、stonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG Managemen
13、tCentre:ruedeStassart,36B1050Brussels 2005CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN128732:2005:EEN 12873-2:2005 (E) 2 Contents Page Foreword 4 Introduction . 5 1 Scope 6 2 Normative references . 6 3 Terms and definitions. 6 4 Principle . 8 5
14、Reagents 8 5.1 General 8 5.2 Waters to be used for testing. 8 5.3 Cleaning liquids for glassware . 8 5.4 Other reagents . 9 6 Apparatus. 9 7 Test pieces. 9 7.1 General requirements 9 7.2 Requirements for the preparation of test piece 10 7.2.1 Site-applied organic lining systems for pipes. 10 7.2.2 J
15、ointing compounds (solvent cements, adhesives) . 10 7.2.3 Other site-applied materials (e.g. greases and sealants) 11 7.3 Surface-area-to-volume ratio (S/V) 11 8 Pretreatment of test pieces 11 8.1 General 11 8.2 Test pieces to be tested at (23 2) C 11 8.2.1 Flushing 11 8.2.2 Stagnation with test wat
16、er 12 8.2.3 Stagnation with disinfection treatment water . 12 8.3 Test pieces to be tested at elevated temperature (60 C to 85 C). 12 8.3.1 Flushing 12 8.3.2 Stagnation with disinfection treatment water at (23 2) C. 12 8.3.3 Stagnation with test water at elevated temperature. 12 8.4 Prewashing 12 9
17、Test procedure 12 9.1 Migration of substances . 12 9.2 Procedural blank tests . 13 9.3 Analysis 13 10 Calculation of test results 14 10.1 Calculation of the concentration of the substances in the migration water . 14 10.2 Calculation of the migration rate of the measured substances 14 10.3 Calculati
18、on of the mean migration rate 14 11 Test report 15 11.1 General information . 15 11.2 Information on the material 15 11.3 Information on the test pieces 15 EN 12873-2:2005 (E) 3 11.4 Information on the test procedure.16 11.5 Test results .16 Annex A (informative) Arrangement for flushing pipes with
19、nominal size greater than DN 80 .18 Annex B (normative) Additional procedure for testing non-homogeneous products and pipes with nominal size greater than DN 8020 B.1 Arrangement for testing 20 B.2 Flushing of the test piece20 B.3 Blank test 20 Annex C (informative) Sequence of additional migration
20、periods in the migration test 22 C.1 Introduction .22 C.2 Migration tests 22 Annex D (informative) Procedural tests using standard additions (positive controls) 24 Annex E (informative) Flow diagrams for migration test procedure for cold water temperature and elevated temperature 25 EN 12873-2:2005
21、(E) 4 Foreword This document (EN 12873-2:2005) has been prepared by Technical Committee CEN/TC 164 “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
22、latest by August 2005, and conflicting national standards shall be withdrawn at the latest by August 2005. It has been drawn up with the objective to describe a test method to determine the migration of substances from non-metallic and non-cementitious materials for use in contact with water intende
23、d for human consumption. This document will result in one of a series of standards on test methods which support the appropriate standards. This document, part 2, is the second in a series of standards for dealing with the influence of migration from materials on water intended for human consumption
24、, including: Part 1: Test method for non-metallic and non-cementitious factory made products; Part 2: Test method for non-metallic and non-cementitious site-applied materials; Part 3: Test method for ion exchange and absorbent resins; Part 4: Test method for water treatment membranes. This document
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