Hardness Test Metallic Materials — Rockwell

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This is a preview of "BS EN ISO 6508-2:201.". Click here to purchase the full version from the ANSI store.BS EN ISO 6508-2:2015BSI Standards PublicationMetallic materials — Rockwellhardness testPart 2: Verification and calibration of testingmachines and indenters

BS EN ISO 6508-2:2015BRITISH STANDARDThis is a preview of "BS EN ISO 6508-2:201.". Click here to purchase the full version from the ANSI store.National forewordThis British Standard is the UK implementation of EN ISO6508-2:2015. It supersedes BS EN ISO 6508-2:2005 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ISE/101/5, Indentation hardness testing.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 79169 7ICS 77.040.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 March 2015.Amendments/corrigenda issued since publicationDateText affected

EN ISO 6508-2EUROPEAN STANDARDThis is a preview of "BS EN ISO 6508-2:201.". Click here to purchase the full version from the ANSI store.NORME EUROPÉENNEEUROPÄISCHE NORMMarch 2015ICS 77.040.10Supersedes EN ISO 6508-2:2005English VersionMetallic materials - Rockwell hardness test - Part 2: Verificationand calibration of testing machines and indenters (ISO 65082:2015)Matériaux métalliques - Essai de dureté Rockwell - Partie 2:Vérification et étalonnage des machines d'essai et despénétrateurs (ISO 6508-2:2015)Metallische Werkstoffe - Härteprüfung nach Rockwell - Teil2: Überprüfung und Kalibrierung der Prüfmaschinen undEindringkörper (ISO 6508-2:2015)This European Standard was approved by CEN on 10 January 2015.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the samestatus 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 6508-2:2015 E

BS EN ISO 6508-2:2015EN ISO 6508-2:2015 (E)This is a preview of "BS EN ISO 6508-2:201.". Click here to purchase the full version from the ANSI store.ForewordThis document (EN ISO 6508-2:2015) has been prepared by Technical Committee ISO/TC 164 "Mechanicaltesting of metals" in collaboration with Technical Committee ECISS/TC 101 “Test methods for steel (otherthan chemical analysis)” 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 identicaltext or by endorsement, at the latest by September 2015, and conflicting national standards shall bewithdrawn at the latest by September 2015.Attention is drawn to the possibility that some of the elements of this document may be the subject of patentrights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.This document supersedes EN ISO 6508-2:2005.According to the CEN-CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, CzechRepublic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.Endorsement noticeThe text of ISO 6508-2:2015 has been approved by CEN as EN ISO 6508-2:2015 without any modification.3

BS EN ISO 6508-2:2015ISO 6508-2:2015(E) This is a preview of "BS EN ISO 6508-2:201.". Click here to purchase the full version from the ANSI store.Contents PageForeword. iv12345678Scope. 1Normative references. 1General conditions. 1Direct verification of the testing machine. 24.1General. 24.2Calibration and verification of the test force. 24.3Calibration and verification of the depth-measuring system. 24.4Calibration and verification of the testing cycle. 34.5Calibration and verification of the machine hysteresis. 3Indirect verification of the testing machine. 45.1General. 45.2Procedure. 45.3Repeatability. 55.4Bias. 65.5Uncertainty of measurement. 7Calibration and verification of Rockwell hardness indenters. 76.1General. 76.2Diamond indenter. 76.2.1General. 76.2.2Direct calibration and verification of the diamond indenter. 76.2.3Indirect verification of diamond indenters. 86.3Ball indenter. 96.3.1Direct calibration and verification of the ball indenter. 96.3.2Indirect verification of the ball holder assembly. 116.4Marking. 11Intervals between direct and indirect calibrations and verifications.11Verification report.12Annex A (normative) Repeatability of testing machines.13Annex B (informative) Uncertainty of measurement of the calibration results of thehardness testing machine.15Bibliography. 24 ISO 2015 – All rights reserved iii

BS EN ISO 6508-2:2015ISO 6508-2:2015(E) This is a preview of "BS EN ISO 6508-2:201.". Click here to purchase the full version from the ANSI store.ForewordISO (the International Organization for Standardization) is a worldwide federation of national standardsbodies (ISO member bodies). The work of preparing International Standards is normally carried outthrough ISO technical committees. Each member body interested in a subject for which a technicalcommittee has been established has the right to be represented on that committee. Internationalorganizations, 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 ofelectrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance aredescribed in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for thedifferent types of ISO documents should be noted. This document was drafted in accordance with theeditorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject ofpatent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details ofany patent rights identified during the development of the document will be in the Introduction and/oron 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 notconstitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformityassessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriersto Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO ISO/TC 164, Mechanical testing of metals,Subcommittee SC 3, Hardness testing.This third edition cancels and replaces the first edition (ISO 6508-2:2005), which has been technicallyrevised.ISO 6508 consists of the following parts, under the general title Metallic materials — Rockwell hardnesstest:— Part 1: Test method— Part 2: Verification and calibration of testing machines and Indenters— Part 3: Calibration of reference blocksiv ISO 2015 – All rights reserved

BS EN ISO 6508-2:2015INTERNATIONAL STANDARD ISO 6508-2:2015(E)This is a preview of "BS EN ISO 6508-2:201.". Click here to purchase the full version from the ANSI store.Metallic materials — Rockwell hardness test —Part 2:Verification and calibration of testing machines andindenters1 ScopeThis part of ISO 6508 specifies two separate methods of verification of testing machines (direct andindirect) for determining Rockwell hardness in accordance with ISO 6508-1:2015, together with amethod for verifying Rockwell hardness indenters.The direct verification method is used to determine whether the main parameters associated withthe machine function, such as applied force, depth measurement, and testing cycle timing, fall withinspecified tolerances. The indirect verification method uses a number of calibrated reference hardnessblocks to determine how well the machine can measure a material of known hardness.The indirect method may be used on its own for periodic routine checking of the machine in service.If a testing machine is also to be used for other methods of hardness testing, it shall be verifiedindependently for each method.This part of ISO 6508 is applicable to stationary and portable hardness testing machines.Attention is drawn to the fact that the use of tungsten carbide composite for ball indenters is consideredto be the standard type of Rockwell indenter ball. Steel indenter balls may continue to be used onlywhen complying with ISO 6508-1:2015, Annex A.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and areindispensable for its application. For dated references, only the edition cited applies. For undatedreferences, the latest edition of the referenced document (including any amendments) applies.ISO 376, Metallic materials — Calibration of force-proving instruments used for the verification of uniaxialtesting machinesISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test methodISO 6508-1:2015, Metallic materials — Rockwell hardness test — Part 1: Test methodISO 6508-3:2015, Metallic materials — Rockwell hardness test — Part 3: Calibration of reference blocks3 General conditionsBefore a Rockwell hardness testing machine is verified, the machine shall be checked to ensure that it isproperly set up and operating in accordance with the manufacturer’s instructions.Especially, it should be checked that the test force can be applied and removed without shock, vibration,or overload and in such a manner that the readings are not influenced. ISO 2015 – All rights reserved 1

Metallic materials - Rockwell hardness test - Part 2: Verification and calibration of testing machines and indenters (ISO 6508-2:2015) Matériaux métalliques - Essai de dureté Rockwell - Partie 2: Vérification et étalonnage des machines d'essai et des pénétrateurs (ISO 6508-2:2015) Metallische Werkstoffe - Härteprüfung nach Rockwell - Teil

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