EUROPEANSTANDARD EN IS0 8994 NORMEEUROPEENNE EUROPAISCHE NORM December 2018 ICS25.220.20;77.060 Supersedes EN IS0 8994:2011 English Version Anodizing of aluminium and its alloys - Rating system for the evaluation of pitting corrosion - Grid method (IS0 8994:2018) Anodisation de I'aluminium et de ses alliages - Anodisieren von Aluminium und Systeme de cotation de la corrosion parpiqures Aluminiumlegierungen-Bewertungs-system fir - Méthode par quadrillage (IS0 8994:2018) Lochkorrosion-Rasterzahlmethode (IS0 8994:2018) This European Standard was approved by CEN on 11 December 2018. 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-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre orto any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language 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, 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 COMITE EUROPEEN DE NORMALISATION EUROPAISCHES KOMITEE FUR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2018CEN All rights of exploitation in any form and by any means reserved Ref.No. EN ISO 8994:2018: E worldwide for CEN national Members EN IS0 8994:2018 (E) European foreword This document (ENIS08994:2018) hasbeen preparedbyTechnical CommitteeIS0/TC79"Light metals and their alloys"in collaboration with Technical Committee CEN/TC 132"Aluminium and aluminium alloys"the secretariatof 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of an identical text or by endorsement, at the latestby June 2019, and conflicting national standards shall be withdrawn at thelatest by June 2019. 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 documentsupersedes ENIS08994:2011. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implementthis 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, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsementnotice The text of IS0 8994:2018 has been approved by CEN as EN IS0 8994:2018 without any modification. i IS08994:2018 Contents Page Foreword ..iv 1 Scope. ..1 2 Normativereferences 3 Terms and definitions 4 Procedureforrating 4.1 Preparation of test specimen. .2 4.2 Determination of grid rating number 5 Expression of results ..3 6 Testreport Bibliography .4 @ IS0 2018 - All rights reserved ili