BS EN ISO 28706-2-2017 Vitreous and porcelain enamels Determination of resistance to chemical corrosion Determination of resistance to chemical corrosion by boiling acids boiling no.pdf
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1、BS EN ISO 28706-2:2017Vitreous and porcelain enamels Determination of resistanceto chemical corrosionPart 2: Determination of resistance tochemical corrosion by boiling acids, boilingneutral liquids, alkaline liquids and/or theirvapours (ISO 28706-2:2017)BSI Standards PublicationWB11885_BSI_Standard
2、Covs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 28706-2:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO28706-2:2017. It supersedes BS EN ISO 28706-2:2011 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee STI/36
3、, Vitreous enamel coatings.A list of organizations represented on this committee can 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 2017
4、. Published by BSI Standards Limited 2017ISBN 978 0 580 85101 8ICS 25.220.50Compliance 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 March 2017.Amendments/corrigenda iss
5、ued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 28706-2 March 2017 ICS 25.220.50 Supersedes EN ISO 28706-2:2011English Version Vitreous and porcelain enamels - Determination of resistance to chemical corrosion - Part 2: Determination of resistance to c
6、hemical corrosion by boiling acids, boiling neutral liquids, alkaline liquids and/or their vapours (ISO 28706-2:2017) maux vitrifis - Dtermination de la rsistance la corrosion chimique - Partie 2: Dtermination de la rsistance la corrosion chimique par des acides bouillants, des liquides neutres boui
7、llants, ou des liquides alcalins et/ou leurs vapeurs (ISO 28706-2:2017) Emails und Emaillierungen - Bestimmung der Bestndigkeit gegen chemische Korrosion - Teil 2: Bestimmung der Bestndigkeit gegen chemische Korrosion durch kochende Suren, kochende neutrale Flssigkeiten, alkalische Flssigkeiten und/
8、oder deren Dmpfe (ISO 28706-2:2017) This European Standard was approved by CEN on 28 February 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-
9、to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 transl
10、ation 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 versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland
11、, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARD
12、IZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 28706-2:2017 EBS EN ISO 28706-2:2017EN
13、ISO 28706-2:2017 (E) 3 European foreword This document (EN ISO 28706-2:2017) has been prepared by Technical Committee ISO/TC 107 “Metallic and other inorganic coatings“ in collaboration with Technical Committee CEN/TC 262 “Metallic and other inorganic coatings” the secretariat of which is held by BS
14、I. 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 September 2017 and conflicting national standards shall be withdrawn at the latest by September 2017. Attention is drawn to the possibility that
15、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 ISO 28706-2:2011. According to the CEN-CENELEC Internal Regulations, the national standards organizat
16、ions of the following countries are bound to implement this European Standard: 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, Malt
17、a, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 28706-2:2017 has been approved by CEN as EN ISO 28706-2:2017 without any modification. BS EN ISO 28706-2:2017ISO 28706-2:2017(E
18、)Foreword vIntroduction vi1 Scope . 12 Normative references 13 Terms and definitions . 14 Principle 25 Reagents 26 Apparatus and materials 36.1 Test apparatus . 36.2 Test materials . 87 Packing rings 87.1 General . 87.2 Packing A 87.3 Packing B 98 Test specimens 99 Procedure. 910 Expression of resul
19、ts .1010.1 Total loss in mass per unit area . 1010.2 Corrosion rate . 1011 Boiling citric acid 1111.1 General 1111.2 Test solution . 1111.3 Duration of the test 1111.4 Test report 1112 Boiling sulfuric acid .1112.1 General 1112.2 Test solution . 1112.3 Duration of the test 1212.4 Test report 1213 Bo
20、iling hydrochloric acid 1213.1 General 1213.2 Test solution . 1213.3 Duration of the test 1213.4 Test report 1314 Boiling distilled or demineralized water .1314.1 General 1314.2 Test solution . 1314.3 Duration of the test 1314.4 Test report 1415 Standard detergent solution .1415.1 General 1415.2 Tes
21、t solution . 1415.3 Test temperature 1515.4 Duration of the test 1515.5 Test report 1516 Other test solutions and/or conditions .1516.1 General 15 ISO 2017 All rights reserved iiiContents PageBS EN ISO 28706-2:2017ISO 28706-2:2017(E)16.2 Test solution . 1516.3 Duration of the test 1516.4 Test report
22、 16Bibliography .17iv ISO 2017 All rights reservedBS EN ISO 28706-2:2017ISO 28706-2:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried ou
23、t through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO co
24、llaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different appr
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