1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Anodizing of aluminium and its alloys - Estimation of loss of absorptive power of anodic oxidation coatings after sealing - Dye-spot test with prior acid treatmentBS EN ISO 2143:2017EUROPEAN STANDARD NORME EUROPENNE EUR
2、OPISCHE NORM EN ISO 2143 November 2017 ICS 25.220.20 Supersedes EN ISO 2143:2010English Version Anodizing of aluminium and its alloys - Estimation of loss of absorptive power of anodic oxidation coatings after sealing - Dye-spot test with prior acid treatment (ISO 2143:2017) Anodisation de laluminiu
3、m et de ses alliages - Apprciation de la perte du pouvoir absorbant des couches anodiques aprs colmatage - Essai la goutte de colorant aprs traitement acide (ISO 2143:2017) Anodisieren von Aluminium und Aluminiumlegierungen - Abschtzung der Anfrbbarkeit von anodisch erzeugten Oxidschichten nach dem
4、Verdichten - Farbtropfentest mit vorheriger Surebehandlung (ISO 2143:2017) This European Standard was approved by CEN on 28 September 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 natio
5、nal 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 CEN member. This European Standard exists in three official versions (English, French, German). A vers
6、ion 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 versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, C
7、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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
8、Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION 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
9、 2143:2017 ENational forewordThis British Standard is the UK implementation of EN ISO 2143:2017. It is identical to ISO 2143:2017. It supersedes BS EN ISO 2143:2010, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee STI/33, Electrodeposited and related c
10、oatings.A list of organizations represented 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. The British Standards Institution 2017 Published by BS
11、I Standards Limited 2017ISBN 978 0 580 92453 8ICS 25.220.20Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2017.Amendments/corrigenda issued since pu
12、blicationDate Text affectedBRITISH STANDARDBS EN ISO 2143:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2143 November 2017 ICS 25.220.20 Supersedes EN ISO 2143:2010English Version Anodizing of aluminium and its alloys - Estimation of loss of absorptive power of anodic oxidation coatin
13、gs after sealing - Dye-spot test with prior acid treatment (ISO 2143:2017) Anodisation de laluminium et de ses alliages - Apprciation de la perte du pouvoir absorbant des couches anodiques aprs colmatage - Essai la goutte de colorant aprs traitement acide (ISO 2143:2017) Anodisieren von Aluminium un
14、d Aluminiumlegierungen - Abschtzung der Anfrbbarkeit von anodisch erzeugten Oxidschichten nach dem Verdichten - Farbtropfentest mit vorheriger Surebehandlung (ISO 2143:2017) This European Standard was approved by CEN on 28 September 2017. CEN members are bound to comply with the CEN/CENELEC Internal
15、 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 CEN
16、 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 versio
17、ns. 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, Po
18、land, Portugal, Romania, Serbia, 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 2017 CEN All rights of exp
19、loitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2143:2017 EBS EN ISO 2143:2017EN ISO 2143:2017 (E) 3 European foreword This document (EN ISO 2143:2017) has been prepared by Technical Committee ISO/TC 79 “Light metals and their alloys” in collaborat
20、ion with Technical Committee CEN/TC 132 “Aluminium and aluminium alloys” 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 May 2018, and conflicting nation
21、al standards shall be withdrawn at the latest by May 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 2143:2010.
22、 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, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Ge
23、rmany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 2143:2017 has been approved by CEN as EN IS
24、O 2143:2017 without any modification. BS EN ISO 2143:2017This page deliberately left blank ISO 2143:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Principle 15 Reagents 26 Test specimens 27 Procedure. 38 Expression of results 39 Test report . 3Annex A
25、 (normative) Interpretation of the results of the dye-spot test 5Bibliography 6 ISO 2017 All rights reserved iiiContents PageISO 2143:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Principle 15 Reagents 26 Test specimens 27 Procedure. 38 Expression of
26、 results 39 Test report . 3Annex A (normative) Interpretation of the results of the dye-spot test 5Bibliography 6 ISO 2017 All rights reserved iiiContents PageBS EN ISO 2143:2017ISO 2143:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national sta
27、ndards bodies (ISO member bodies). The work of preparing International Standards is normally carried out 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 or
28、ganizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for it
29、s further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/di
30、rectives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in t
31、he Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO s
32、pecific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.This document was prepared by Technical Committee
33、 ISO/TC 79, Light metals and their alloys, Subcommittee SC 2, Organic and anodic oxidation coatings on aluminium.This third edition cancels and replaces the second edition (ISO 2143:2010), which has been technically revised.The main changes compared to the previous edition are as follows: informatio
34、n on the test specimen has been added; the immersion method has been added.iv ISO 2017 All rights reservedBS EN ISO 2143:2017ISO 2143:2017(E)IntroductionThe resistance of anodic oxidation coatings to the absorption of dyes gives information on the quality of sealing, the total resistance indicating
35、whether the quality of sealing is good.The correlation of the results obtained with those of other tests that can assess sealing quality, such as that of ISO 2931, can be affected by the presence of certain agents having been added to the sealing bath. For this reason, the quality is checked from ti
36、me to time by one of the reference acid-dissolution methods specified in ISO 3210. ISO 2017 All rights reserved vBS EN ISO 2143:2017BS EN ISO 2143:2017Anodizing of aluminium and its alloys Estimation of loss of absorptive power of anodic oxidation coatings after sealing Dye-spot test with prior acid
37、 treatmentIMPORTANT The electronic file of this document contains colours which are considered to be useful for the correct understanding of the document. Users should therefore consider printing this document using a colour printer.1 ScopeThis document specifies a method of estimating the loss of a
38、bsorptive power of anodic oxidation coatings that have undergone a sealing treatment, by dye absorption after acid pretreatment.The method is suitable for use as a production control method and can be applicable to anodic oxidation coatings which may be subjected to weathering or aggressive environm
39、ents, or where resistance to staining is important.The method is not applicable to those coatings thata) are formed on alloys containing more than 2 % copper or 4 % silicon,b) are sealed by the dichromate process,c) have been given supplementary processing, e.g. oiling, waxing or lacquering,d) are c
40、oloured in deep shades, ande) are less than 3 m thickness.The method is less appropriate where nickel or cobalt salts, or organic additives, have been added to baths used for hydrothermal sealing.2 Normative referencesThe following documents are referred to in the text in such a way that some or all
41、 of their content constitutes requirements 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.ISO 7583, Anodizing of aluminium and its alloys Terms and definitions3 Terms and
42、 definitionsFor the purposes of this document, the terms and definitions given in ISO 7583 apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: ISO Online browsing platform: available at http:/www.iso.org/obp IEC Electropedia: available at http:/
43、www.electropedia.org/4 PrincipleA degreased area of an anodic oxidation coating is subjected to the action of an acid and the coloration obtained after the subsequent application of a dyestuff is observed.INTERNATIONAL STANDARD ISO 2143:2017(E) ISO 2017 All rights reserved 1BS EN ISO 2143:2017ISO 21
44、43:2017(E)5 ReagentsUse only reagents of recognized analytical grade and distilled water or deionized water. The acid solutions specified in 5.1.1 and 5.1.2 may be used equally for either dye-spot test, but the acid solution specified in 5.1.1 is preferred for safety reasons.5.1 Acid solutionsWARNIN
45、G These acid solutions contain hydrofluoric acid and should be stored in appropriate containers and handled with great caution and appropriate preventative measures.5.1.1 Acid solution ASolution containing 25 ml of sulfuric acid (20= 1,84 g/ml) and 10 g of potassium fluoride per litre.5.1.2 Acid sol
46、ution BSolution containing 25 ml of fluorosilicic acid (H2SiF6) (20= 1,29 g/ml) per litre.5.2 Dye solutions5.2.1 Dye solution AAqueous solution containing 5 g of Sanodye Blue 2LW1)formerly Sanodal Blue 2LW (Colour Index Mordant Blue 69) per litre, adjusted, at approximately 23 C, to a pH of 5,0 0,5
47、with dilute sulfuric acid solution or with dilute sodium hydroxide solution.5.2.2 Dye solution BAqueous solution containing 10 g of Sanodal Red B3LW2)(Colour Index Acid Red 331) per litre, adjusted, at approximately 23 C, to a pH of 5,7 0,5 with dilute sulfuric acid solution or with dilute sodium hy
48、droxide solution.6 Test specimensThe test shall be carried out using a significant surface of production articles or test specimen taken from them.Where it is impossible to test the production articles or test specimen taken from them, a substitute test specimen may be used. However, in this case, t
49、he substitute test specimen used shall be one which is representative of the product and it shall be made from the same material and prepared under the same conditions of finishing as those used for the preparation of the product.The kind and temper of the aluminium alloy and the surface condition before treatment should be the same as those of the product.Pretreatment and anodizing should be performed in the same bath and under the same conditions as the treatment of the product.1) Sanodye Blue 2LW is an example of
