Iso 31-4 Article Index for
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Iso 31-4
  CATEGORIES ABOUT ISO 31-4
   
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#00031-04
   
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Its definitions include:

Annex A of ISO 31-4 lists units of heat based on the foot, pound and second and some other units, including the Degree Rankine , Degree Fahrenheit , British Thermal Unit and others. Annex B lists conversion factors for three versions of the Calorie .