VDI/VDE 2625 Blatt 1.1
-
Draft
Hardness testing of metallic materials - Proof of suitability for hardness testing machines - Accuracy, precision, linearity, stability and measurement uncertainty for the Rockwell C (HRC)
At a glance
- German title
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Härteprüfung an metallischen Werkstoffen - Eignungsnachweis für Härteprüfmaschinen - Richtigkeit, Präzision, Linearität, Stabilität und Messunsicherheit für Verfahren Rockwell C (HRC)
- Publication date
- 2025-04
- End date of the objection deadline
- 2025-09-30
- Publisher
- Engl. VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik
- Related manuals
- Number of pages
- 23
- Available in
- German
- Abstract
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The standard describes a procedure for determining the suitability of hardness testing machines according to the Rockwell C method. The procedure takes into account that the measured hardness value is a material parameter and not a physical value. The measured hardness value is the result of an indentation test, which is always accompanied by localised destruction of the material surface and therefore cannot be repeated on the same spot. Proof of suitability is considered taking into account the measurement uncertainty of the hardness testing machine and the specified tolerances from design and production, as well as the scatter of the production process. This standard thus creates a standardised and inter-company basis for objective system assessment for manufacturers and users.
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