Calorie
The amount of heat necessary to raise 1 gram of water 1C at the pressure of 1 atmosphere and temperature of 15C; a calorie is 4.184 joules, and there are 252.15 calories in a British thermal unit (Btu).
Committee
Fire & Explosion Investigation
Date Added to Lexicon
Standard Source (Designation Number Title of Standard. Publisher, Place, Year.)
NFPA 921:2021 Guide for Fire and Explosion Investigations. The National Fire Protection Association (NFPA), 1 Batterymarch Park, Quincy, MA, 2021.
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