BS EN IS0 2143:2017 BSl Standards Publication Anodizing of aluminium and its alloys - Estimation of loss of absorptive power of anodic oxidation coatings after sealing - Dye-spot test with prior acidtreatment bsi. BS EN ISO 2143:2017 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN IS0 2143:2017. It is identical to IS0 2143:2017. It supersedes BS EN IS0 2143:2010, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee STI/33, Electrodeposited and related coatings. 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 BSI Standards Limited 2017 ISBN 978 0 580 92453 8 ICS 25.220.20 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Amendments/corrigenda issued since publication Date Text affected BS EN IS0 2143:2017 EUROPEAN STANDARD EN IS0 2143 NORME EUROPEENNE EUROPAISCHE NORM November 2017 ICS 25.220.20 Supersedes EN IS0 2143:2010 English 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 I'aluminium et de ses alliages - Anodisieren von Aluminium und Appréciation de la perte du pouvoir absorbant des Aluminiumlegierungen - Abschatzung der couches anodiques apres colmatage - Essai a la goutte Anfarbbarkeit von anodisch erzeugten Oxidschichten decolorantaprestraitementacide(IS02143:2017) nach dem Verdichten - Farbtropfentest mit vorheriger Saurebehandlung (IS0 2143:2017) This European Standard was approved by CEN on 28 September 2017. CENmembersareboundto complywiththe CEN/CENELEC Internal Regulations whichstipulatetheconditionsforgivingthis 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 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, 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. cen EUROPEAN COMMITTEE FOR STANDARDIZATION COMITEEUROPEENDENORMALISATION EUROPAISCHES KOMITEE FUR NORMUN G CEN-CENELECManagementCentre:AvenueMarnix17,B-1o0oBrussels @2017CEN All rights of exploitation in any form and by any means reserved Ref. No. EN IS0 2143:2017 E worldwidefor CEN national Members.