This standard has been withdrawn.

Standard 134 defines graphic symbols for heating, ventilating, air-conditioning and refrigerating systems. The standard covers graphic symbols for heating, ventilating, air-conditioning, and refrigerating systems and equipment, including related controls. It identifies graphic symbols by name, configuration, and description. The graphic symbols in this standard are intended for use in manual drawings and drawings produced by computer-aided drafting (CAD).

The 2014 reaffirmation of the standard includes minor editorial changes and includes online access to the DraWinG (*.dwg) files of the graphic symbols used in the standard. An applicable CAD program is required to view the files.