Metallic materials. Instrumented indentation test for hardness and materials parameters. Part 2: Verification and calibration of testing machines (ISO 14577-2:2015)
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ISO 14577-2:2015 specifies the method of verification and calibration of testing machines for carrying out the instrumented indentation test in accordance with ISO 14577-1:2015. It describes a direct verification method for checking the main functions of the testing machine and an indirect verification method suitable for the determination of the repeatability of the testing machine. There is a requirement that the indirect method be used in addition to the direct method and for the periodic routine checking of the testing machine in service. It is a requirement that the indirect method of verification of the testing machine be carried out independently for each test method. ISO 14577-2:2015 is also applicable for transportable testing machines.
Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).
Sisällysluettelo
Foreword
Introduction
1 Scope
2 Normative references
3 General conditions
3.1 Preparation
3.2 Functional installation
3.3 Indenter
3.4 Application of the test force
4 Direct verification and calibration
4.1 General
4.2 Calibration of the test force
4.3 Calibration of the displacement measuring device
4.4 Verification and calibration of the machine compliance
4.5 Calibration and verification of the indenter
4.6 Verification of the indenter area function
4.7 Verification of the testing cycle
5 Indirect verification
5.1 General
5.2 Procedure
6 Intervals between calibrations and verifications
6.1 Direct verification and calibration
6.2 Indirect verification
6.3 Routine checking
7 Verification report/Calibration certificate
Annex A Example of an indenter holder (informative)
Annex B Procedures for determination of indenter area function (normative)
Annex C Examples for the documentation of the results of indirect verification (informative)
Annex D Machine compliance calibration procedure (normative)
ISO 14577-1:2015 Metallic materials -- Instrumented indentation test for hardness and materials parameters -- Part 1: Test method
ISO 14577-3:2002 Metallic materials -- Instrumented indentation test for hardness and materials parameters -- Part 3: Calibration of reference blocks
ISO 376:2011 Metallic materials -- Calibration of force-proving instruments used for the verification of uniaxial testing machines
ISO 14577-1:2015 Metallic materials -- Instrumented indentation test for hardness and materials parameters -- Part 1: Test method
ISO 14577-3:2002 Metallic materials -- Instrumented indentation test for hardness and materials parameters -- Part 3: Calibration of reference blocks
ISO 376:2011 Metallic materials -- Calibration of force-proving instruments used for the verification of uniaxial testing machines
ISO 3878:1983 Hardmetals -- Vickers hardness test