ISO 16859-3:2015 specifies a method for the calibration of reference test blocks that are used for the indirect verification of Leeb hardness testers according to ISO 16859-2 and for the periodic checking according to ISO 16859-1. The procedures necessary to ensure metrological traceability of the calibration machine are also specified.
Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).
Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Manufacture of reference test blocks
4 Calibration machine
4.1 General
4.2 Traceability
4.3 Requirements on calibration machines
4.4 Calibration of calibration machines
5 Calibration procedure
6 Number of test indentations
7 Uniformity of hardness
8 Marking
9 Validity
Annex A Requirements for Leeb hardness calibration machines (normative)
Annex B Measurement uncertainty of reference test block (informative)
Annex C Examples of reference test block (informative)
ISO 16859-1:2015 Metallic materials -- Leeb hardness test -- Part 1: Test method
ISO 16859-2:2015 Metallic materials -- Leeb hardness test -- Part 2: Verification and calibration of the testing devices
ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
ISO 16859-1:2015 Metallic materials -- Leeb hardness test -- Part 1: Test method
ISO 16859-2:2015 Metallic materials -- Leeb hardness test -- Part 2: Verification and calibration of the testing devices
ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories