EUROPEANSTANDARD EN IS0 11127-4 NORMEEUROPEENNE EUROPAISCHE NORM October2020 ICS25.220.10 Supersedes EN IS011127-4:2011 English Version Preparation of steel substratesbefore application of paints and related products - Test methods for non- metallic blast-cleaning abrasives - Part 4: Assessment of hardness by a glass slide test (Is0 11127-4:2020) Preparation des subjectiles d'acier avant Vorbereitung von Stahloberflachen vor application de peintures et de produits assimilés dem Auftragen von Beschichtungsstoffen - Methodes d'essai pour abrasifs non metalliques Prifverfahren fur nichtmetallische Strahlmittel destines a la preparation par projection -Partie - Teil 4: Abschatzung der Harte durch Vergleich 4: Evaluation de la dureté au moyen d'un essai mit Glasscheiben (IS0 11127-4:2020) alalamedeverre (IS0 11127-4:2020) This European Standard was approved by CEN on 19 October 2020. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions forgiving 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 ortoany CENmember. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under theresponsibility 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, 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: Rue de la Science 23, B-1040 Brussels 2020CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11127-4:2020: E worldwide for CEN national Members European foreword This document (ENIS011127-4:2020)has been prepared byTechnical CommitteeIS0/TC35"Paints secretariat of which is held by DIN This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at thelatestby April 2021,and conflicting national standards shall be withdrawn atthelatest byApril 2021. 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. ThisdocumentsupersedesENIS011127-4:2011. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain,Sweden, Switzerland,Turkey and the United Kingdom. Endorsementnotice The text of ISO 11127-4:2020 has been approved by CEN as EN IS0 11127-4:2020 without any modification. i Contents Page Foreword ..iv 1 Scope ..1 2 Normativereferences 3 Termsanddefinitions 4 Apparatus 5 Sampling. ..2 6 Procedure ..2 7 Test report .2 Annex A (informative) International Standards for non-metallic blast-cleaning abrasives .3 Bibliography 4 @IS0 2020-All rights reserved ili