Part per million per Celsius difference
ppm/°Ccx:ppm_delta_degC · Inverse temperature
1 ppm/°C = (1 ppm)^1 × (1 Δ°C)^-1.
- Quantity kind
- Inverse temperature
- SI dimension
Θ^-1- Allowed roles
- Scalar
- Unit system / convention
- Other conventions
- Registry code
ppm_delta_degC
Scope and distinctions
Temperature factors are differences (intervals), explicitly declared in expression_roles. Absolute temperature offsets do not participate. Definition metadata, not a claim that an existing calculator is migrated.
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
- 1.0.0
- Registry snapshot
- 0.3.0-preview.3 · preview
- Definition lifecycle
- candidate
- Definition owner
- core.metrology
- Definition digest
33c8fcd6216e51f96d3228a398bc53a71e98fc7a9946a4d511247f394ce51a26- Definition dependency digest
f5065107e9bedd001c57755f16c3eaf9df83304eb6e3ec290f830b4b2b2c38c1
Digests identify definition content; they are not CVP evidence or production attestations.