Micrometre
µmcx:um · Length
1 µm = 0.000001 m.
- Quantity kind
- Length
- SI dimension
L- Allowed roles
- Scalar
- Unit system / convention
- SI decimal multiples
- Registry code
um
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
UUCE executable Preview · Use cx:um with a compatible unit and a pinned snapshot.
No legacy converter is linked for this definition.
Verification scope
- UUCE conversion capability
units.convert@0.1.1· VERIFIED- Production binding at publication
- CURRENT
The definition lifecycle describes this registry entry. CVP status describes the conversion capability and the cases and rejection partitions in its Manifest. CVP Manifest · Public replay cases
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
c2b9a1d804696f52219f05d84af118badf4e05564ad086bdecec10ad04d7574c- Definition dependency digest
578cd4962be23ee98af454c083501de68ae05dbb20184b5a55e36887d30eb366
Digests identify definition content; they are not CVP evidence or production attestations.