Gauge blocks (slip gauges) are among the most common length standards used in engineering. They are used to calibrate or verify the performance of a wide range of instruments or other standards ranging from micrometers and Vernier callipers to coordinate measuring machines. Before use, these standards must themselves be calibrated according to various national or international specification standards and should then be subject to an ongoing programme of re-calibration, according to the frequency of use and the required accuracy.
By offering the most accurate services in the UK, we can help you reduce your uncertainty, thereby improving process control, reliability and efficiency. We can calibrate: the central length, flatness and variation in length of gauge blocks and the thermal expansion coefficient of long gauge blocks. The majority of these services are accredited by UKAS and internationally recognised under the CIPM Mutual Recognition Arrangement.
NPL’s gauge block calibration service offers the following features:
NPL can measure the following grades of gauge block:
Note: other types of gauge blocks can be calibrated on request.
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