Definition availableExact definition Candidate definition
Tonne
tcx:t · Mass
1 t = 1000 kg.
- Quantity kind
- Mass
- SI dimension
M- Allowed roles
- Scalar
- Unit system / convention
- Accepted with SI
- Registry code
t
Scope and distinctions
Definition metadata only. The quantity kind and model field contract determine compatible use; no new UUCE execution or CVP claim.
Available operations
No converter is linked for this definition yet. You can inspect the definition and its sources.
Verification scope
New UUCE conversion paths have not been CVP-verified or production-attested. An exact unit definition is not a verification claim.
Candidate is a registry lifecycle state. It is not a completed review or CVP verification.
Definition sources
- BIPM — The International System of Units (SI)
9th edition, version 4.01, June 2026
Tables 2, 4 and 5: SI units; Table 7: SI prefixes
Source checked:Definition metadata attributed to BIPM; brochure licensed CC BY 4.0.
Definition and registry versions
- Definition revision
- 1.0.0
- Registry snapshot
- 0.3.0-preview.3 · preview
- Definition lifecycle
- candidate
- Definition owner
- core.metrology
- Definition digest
46d5b9b259f5cba75ca09512b168544a2d8aca8d55d0be33e17e6e646dd248c3- Definition dependency digest
c04de6346bf81de497cd9882437094ca95f1bdc72d14f27a0991a328f3c431fe
Digests identify definition content; they are not CVP evidence or production attestations.