Definition availableExact definition Candidate definition
Becquerel
Bqcx:Bq · Activity
1 Bq = (1 s)^-1.
- Quantity kind
- Activity
- SI dimension
T^-1- Allowed roles
- Scalar
- Unit system / convention
- Coherent SI
- Registry code
Bq
Scope and distinctions
Definition metadata. Quantity kind and model-field semantics determine compatibility; 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 4–7: coherent derived units, unit algebra and decimal 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
3b4c192cecf32237596eb45cedc303a2f25439782f023f9df1292a99e2f625dd- Definition dependency digest
8e975313e8a18fdcfe5d22c2662c91e8b041332e0105acb1e3dfaf9fa4a1260c
Digests identify definition content; they are not CVP evidence or production attestations.