Dav1rev 12026-03-17BIPM: Non-SI unit accepted for use with the SI
dalton
0112/2///62720#UAE008
unit of mass defined as 1/12 of the mass of an unbound neutral atom of carbon-12 in its nuclear and electronic ground state and at rest
unitVersion history1#
IEC CDD records every published revision of each entity — version number, status, timestamp, and the change request that introduced it. OpenCDD captures the full chain of custody from cdd.iec.ch; the entry marked Current is the one rendered on this page.
Metadata#
- Synonyms
- unified atomic mass unit
- Note
- 1 Da = 1.66053906892 x 10⁻²⁷ kg
- Source document
- BIPM: Non-SI unit accepted for use with the SI
- Version
- 1
- Revision
- 1
- Status
- Standard
- Publisher
- IEC
- Published in
- IEC 62720
- Responsible committee
- IEC/SC 3D
- Change request
C00192- Dates
- Original: 2026-03-17
- Current version: 2026-03-17
- Current revision: 2026-03-17