Definition availableExact definition Candidate definition
Inch to the fourth power
in⁴cx:in4 · Second moment of area
1 in⁴ = (1 in)^4.
- Quantity kind
- Second moment of area
- SI dimension
L^4- Allowed roles
- Scalar
- Unit system / convention
- International yard–pound
- Registry code
in4
Scope and distinctions
Definition metadata. Quantity kind and model-field semantics determine compatibility; no new UUCE execution or CVP claim.
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
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
- 1.0.1
- Registry snapshot
- 0.3.0-preview.3 · preview
- Definition lifecycle
- candidate
- Definition owner
- core.metrology
- Definition digest
7e06a03dbd41bcb32a171d60a4ceb7c093aafce73938c5b5843179da530148ce- Definition dependency digest
611d2bcc0b466741b3e586226c8bb7a277e31d447b009b85f701425e04b08763
Digests identify definition content; they are not CVP evidence or production attestations.