BSEN ISO 4545-2:2018 BSl Standards Publication Metallic materials Knoop hardness test Part 2: Verification and calibration of testing machines bsi. BSENIS04545-2:2018 BRITISH STANDARD National foreword ThisBritish Standard is theUK implementationof ENIS04545-2:2018 It is identical toIS04545-2:2017.It supersedes BSENIS0 4545-2:2005, which is withdrawn. TheUKparticipationinitspreparationwas entrustedto Technical CommitteeISE/101/5,Indentationhardnesstesting A list oforganizations represented on this committee can be obtained on requestto its secretary. This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. @ The British Standards Institution 2018 Published by BSI Standards Limited 2018 ISBN9780580842818 ICS77.040.10 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Amendments/corrigendaissuedsincepublication Date Text affected EN ISO 4545-2 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHE NORM March 2018 ICS19.060; 77.040.10 Supersedes EN IS0 4545-2:2005 English Version Metallic materials - Knoop hardness test - Part 2: Verification and calibration of testing machines (IsO 4545-2:2017) Materiaux metalliques - Essai de durete Metallische Werkstoffe-Hartepruifung nach Knoop-Partie 2: Verification et étalonnage Knoop -Teil 2: Uberprufung und Kalibrierung des machines d'essai (IS0 4545-2:2017) der Prufmaschinen (IS0 4545-2:2017) This European Standard was approved by CEN on 30 November 2017. CEN members are bound to complywith the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status ofa national standard without any alteration. Up-to-date lists and bibliographical ortoany CENmember. This European Standard exists in three official versions (English, French, German). A version in any other language made bytranslation under theresponsibility ofa 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, 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 FURNORMUNG 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 4545-2:2018: E worldwide for CEN national Members