British Thermal Unit

Preferred Label : British Thermal Unit;

NCIt synonyms : B.T.U.; BTU; B.Th.U.;

NCIt related terms : Btu (usual); [Btu];

NCIt definition : A non-SI unit of energy equal to the amount of heat required to raise the temperature of one pound avoirdupois of air-free water by one degree Fahrenheit at a constant pressure of one atmosphere. The value of the unit depends on the initial temperature of the water and varies in the range of approximately 1.054 - 1.060 joules.;

Codes from synonyms : 13047;

Details

Origin ID

C67196;

UMLS CUI

C0560911;

Automatic exact mappings (from CISMeF team)
- Barth syndrome [ORDO Disease]
- mean British thermal unit [UCUM unit]
Currated CISMeF NLP mapping
- British thermal unit [UCUM unit]
- British thermal unit (qualifier value) [SNOMED CT concept]
Semantic type(s)
- Quantitative Concept [UMLS semantic type]
UMLS correspondences (same concept)
- British thermal unit [UCUM unit]
- British thermal unit (qualifier value) [SNOMED CT concept]
concept_is_in_subset
- FDA Pharmaceutical Quality/CMC Terminology [NCIt concept]
- HL7 Unit of Measure Terminology [NCIt concept]
- PQ/CMC Units of Measure Terminology [NCIt concept]

Keyword's position in hierarchy(ies) :

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