Quantities, Units, Dimensions and Types
Ontology for physical quantities, units of measure, dimensions, and data types. Essential for scientific data.
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Where this one tends to earn its keep.
Scientific data unit standardization
Engineering measurement interoperability
IoT sensor unit conversion
Cross-system quantity comparison
CC-BY-4.0QUDT vocabulary, licensed under CC BY 4.0. Source: https://qudt.org/
Verified against the licence text on 2026-08-07.
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