5. Conclusion
The gauge block is still the most commonly used length standard, mainly for calibrating conventional measuring instruments or other length standards.
The aim of this document is not only to inform, but also to guide the user towards a better choice of shim set or calibration method, with an awareness of their limitations and pitfalls.
Users of gauge blocks wishing to improve their knowledge of this basic dimensional metrology standard will have to pay particular attention to calibration methods and their limitations, but the key word is to define requirements in order to avoid making mistakes that can prove costly. There's no point in buying class 0 blocks to calibrate calipers.
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Conclusion
Bibliography
Standards
French Standards Association (AFNOR)
- Geometric Product Specification (GPS): Length standards – Gauge blocks (classification index: E11-010). - NF EN ISO 3650 - 1999
- Geometric product specification (GPS) – Verification by measurement of parts and measuring equipment – Part 1: decision rules for proving compliance or noncompliance with the specification (classification index: E10-201-1). - NF EN ISO 14253-1 - 1999 ...
Manufacturers, distributors
Mitutoyo http://www.mitutoyo.fr/
Brown and Sharpe http://www.brownandsharpe.com/
CE Johansson...
Organizations
International Bureau of Weights and Measures (BIPM) http://www.bipm.org
French national metrology and testing laboratory (LNE) http://www.lne.fr
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