Granite Metrology Standards
Hand Lapped | UKAS Certified | Bespoke Options
OUR GRANITE RANGE Quality Granite Standards Built for Precision
With over 120 years of manufacturing and restoration expertise, Eley Metrology’s granite standards are recognised for industry‑leading quality and precision.
Granite Squares
Precision granite squares produced in accordance with BS 939:2007.
Granite Straightedges
Precision granite straightedges produced in accordance with BS 5204 Part 2:1977.
Granite Parallels
Precision granite parallels produced in accordance with BS 906:1972.
Granite Tri-Squares
Precision granite tri-squares produced in accordance with BS 939:2007.
Materials
Traceable Granite Artefacts Built for Measurement Accuracy
Calibrated and hand-lapped using time‑tested techniques passed down and perfected for over a century, our precision engineers consistently deliver artefacts to the highest of standards in accordance with each specified British standard measurement, as underpinned by the National Measurement System (NMS).
Every precision artefact undergoes rigorous quality checks to ensure it meets specified grade tolerances and provides a stable, traceable reference for inspection and calibration.
Custom Build. Expert Support. Granite Metrology Standards Custom Capabilities
From extra‑large master straight edges to lightweight squares with carrying handles, we manufacture bespoke granite solutions across laboratory and inspection grades.
Service contracts are available for all granite artefacts, whether made by us or sourced elsewhere. Our engineers can perform onsite resurfacing and calibration to minimise downtime, or you can send items to our temperature‑controlled Derby laboratory for full restoration and traceable calibration.
Refine Your Quality Inspection Tasks Today
Speak to our team today about your requirements and get a tailored solution.