ASHRAE F37-2009 (SI)
This chapter contains information about abbreviations and symbols for heating, ventilating, air-conditioning, and refrigerating (HVACR) engineers. Abbreviations are shortened forms of names and expressions used in text, drawings, and computer programs. This chapter discusses conventional English-language abbreviations that may be different in other languages. A letter symbol represents a quantity or a unit, not its name, and is independent of language. Because of this, use of a letter symbol is preferred over abbreviations for unit or quantity terms. Letter symbols necessary for individual chapters are defined in the chapters where they occur.Chapter Table of ContentsAbbreviations for Text, Drawings, and Computer Programs