British Thermal Unit Thermochemical

Preferred Label : British Thermal Unit Thermochemical;

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

NCIt related terms : [Btu_th]; Btu (thermochemical);

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, based on the definition of the thermochemical calorie (exactly 4.1840 joules) by the U.S. Bureau of Standards, 1953. The thermochemical British thermal unit is equal to approximately 1.05435026444 kJ.;

Codes from synonyms : 13046;

Details

Origin ID

C69155;

UMLS CUI

C1552976;

Currated CISMeF NLP mapping
- thermochemical British thermal unit [UCUM unit]
Semantic type(s)
- Quantitative Concept [UMLS semantic type]
UMLS correspondences (same concept)
- thermochemical British thermal unit [UCUM unit]
concept_is_in_subset
- HL7 Unit of Measure Terminology [NCIt concept]

Keyword's position in hierarchy(ies) :

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