Reciprocal second
s⁻¹cx:per_s · Inverse time
1 s⁻¹ = (1 s)^-1.
- Quantity kind
- Inverse time
- SI dimension
T^-1- Allowed roles
- Scalar
- Unit system / convention
- Coherent SI
- Registry code
per_s
Scope and distinctions
Inverse-time scale used for rates. It does not infer cyclic frequency, angular frequency, radioactivity or an application model from a bare 1/s label.
Available operations
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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
SI algebra: inverse time; equal dimension alone does not identify frequency or activity
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
57963930785b7e37d1e5a8db263e1ac25783ae1b3ae5f695a7b448792cce8832- Definition dependency digest
c34f19dd39c3c21237be2e37260a8b22013ee03654710f0de384976526bea38e
Digests identify definition content; they are not CVP evidence or production attestations.