INTERNATIONAL STANDARD ISO 6507-2:2018
Metallic materials — Vickers hardness test —
Part 2:
Verification and calibration of testing machines
ISO 6507 consists of the following parts, under the general title Metallic materials —— Vickers hardness test:
ISO 6507-1 Metallic materials —— Vickers hardness test Part 1: Test method
ISO 6507-2 Metallic materials —— Vickers hardness test Part 2: Verification and calibration of testing machines and indenters
ISO 6507-3 Metallic materials —— Vickers hardness test Part 3: Calibration of refernce blocks
ISO 6507-4 Metallic materials —— Vickers hardness test Part 4: Table of hardness values
替代情況：替代ISO 6507-2:2005
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General conditions
5 Direct verification
6 Indirect verification
7 Intervals between verifications
8 Verification report/calibration certificate
Annex A (informative) Uncertainty of the calibration results of the hardness testing system
Bibliography
1 Scope
This document specifies a method of verification and calibration of testing machines and diagonal measuring system for determining Vickers hardness in accordance with ISO 6507-1.
A direct method of verification and calibration is specified for the testing machine, indenter and the diagonal length measuring system. An indirect verification method using reference blocks is specified for the overall checking of the machine.
If a testing machine is also to be used for other methods of hardness testing, it shall be verified independently for each method.
This document is also applicable to portable hardness testing machines but not applicable to hardness testing machines based on different measurement principles, e.g. ultrasonic impedance method.
2 Normative references
The following docueare referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, 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 uniaxial testing machines
ISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method
ISO 6507-3, Metallic materials — Vickers hardness test — Part 3: Calibration of reference blocks
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
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