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ASTM_E_110_-_14.pdf

1、Designation:E11014Standard Test Method forRockwell and Brinell Hardness of Metallic Materials byPortable Hardness Testers1This standard is issued under the fixed designation E110;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the ye

2、ar of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This test method defines the re

3、quirements for portableinstruments that are intended to be used to measure theRockwell or Brinell hardness of metallic materials by perform-ing indentation tests on the surface of materials in the field oroutside of a test lab,or in cases where the size or weight of thetest piece prevents it from be

4、ing tested on a standard E10 orE18 hardness tester.1.2 The principles used to measure the Rockwell or Brinellhardness are the same as those defined in the E18 standard testmethod for Rockwell or E10 standard test method for Brinell.NOTE1Standard test methods E10 and E18 will be referred to in thiste

5、st method as the standard methods.1.3 The portable hardness testers covered by this testmethod are verified only by the indirect verification method.Although the portable hardness testers are designed to employthe same test conditions as those defined in the standard testmethods,the forces applied b

6、y the portable Rockwell andBrinell testers and the depth measuring systems of the portableRockwell testers may not meet the tolerance requirements ofthe standard methods.Portable hardness testers shall useindenters that meet the requirements of the standard testmethods.1.4 This test method does not

7、apply to portable hardnesstesters that measure hardness by a means or procedure that isdifferent than those defined in E10 or E18 For example,thistest method does not apply to the methods defined in ASTMstandard Practice A833,Test Methods A956 and A1038 orB647.1.5 A report section is included to def

8、ine how to indicatethat the test result was obtained by using a portable device thatconforms to this document.1.6 Annex A1 is included that defines the periodic indirectverification and daily verification requirements for these instru-ments.1.7 This standard does not purport to address all of thesaf

9、ety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2A833 Practice for Indentation Hardn

10、ess of Metallic Materi-als by Comparison Hardness TestersA956 Test Method for Leeb Hardness Testing of SteelProductsA1038 Test Method for Portable Hardness Testing by theUltrasonic Contact Impedance MethodB647 Test Method for Indentation Hardness of AluminumAlloys by Means of a Webster Hardness Gage

11、E10 Test Method for Brinell Hardness of Metallic MaterialsE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodE140 Hardness Conversion Tables for Metals RelationshipAmong Brinell Hardness,Vickers

12、 Hardness,RockwellHardness,Superficial Hardness,Knoop Hardness,Sclero-scope Hardness,and Leeb Hardness2.2 ISO Standards:3ISO/IEC 17025:General requirements for the competenceof testing calibration laboratoriesISO/IEC 17011:Conformity assessment-General require-ments for accreditation bodies accredit

13、ing conformityassessment bodies1This test method is under the jurisdiction of ASTM Committee E28 onMechanical Testing and is the direct responsibility of Subcommittee E28.06 onIndentation Hardness Testing.Current edition approved July 1,2014.Published July 2014.Originally approvedin 1955.Last previo

14、us edition approved in 2010 as E110 10.DOI:10.1520/E0110-14.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Avail

15、able from International Organization for Standardization(ISO),1,ch.dela Voie-Creuse,CP 56,CH-1211 Geneva 20,Switzerland,http:/www.iso.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.Un

16、ited States1 3.Significance and Use3.1 Portable hardness testers are used for testing materialsthat because of their size,location or other requirements suchas test point are unable to be tested using traditional fixedinstruments.3.2 Portable hardness testers,by their nature,induce varia-tion that could influence the test results;therefore,hardnessmeasurements made in accordance with this test method arenot considered to meet the requirements of E10 or E18.Theuser should compare the results of t

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