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Dalton numeric factor outdated #80
Description
The dalton conversion factor to kilograms in the knowledge base is not up to date.
SI Brochure 9th v3.02:
Value in https://si-digital-framework.org/SI/entities#units_20260303103151Z.ttl:
...
si:hasNumericFactor "1.6605390666e-27"^^xsd:float ;
si:hasNumericFactorAsString "1.660\\:539\\:066\\:60(50) \\times 10^{-27}"^^xsd:string ;
...
Activity
Crparedes commentedon Mar 16, 2026
The outdated value comes from the SI Brochure 9th v3.01, superseded in August 2025 by version 3.02.
Data from SI Brochure 9th v3.01:
Crparedes commentedon Mar 19, 2026
How do we represent the uncertainty of the conversion factor?
stuchalk commentedon Mar 19, 2026
I don't see any semantic representation of the uncertainty in either of the concept files. So, it needs to be added.
Applied decimal datatype to conversionFactors of non SI units (#77). …
Merge pull request #89 from TheBIPM/77-decimal-datatype
Crparedes commentedon May 13, 2026
Reopening until we deploy the updated files