ASHRAE - American Society of Heating, Refrigerating and Air-Conditioning Engineers - is an international organization operated for the exclusive purpose of advancing the arts and sciences of HVAC & R (heating, ventilation, air-conditioning, and refrigeration), the allied arts and sciences, and the related human factors for the benefit of the public.
ASHRAE has over 175 standards, some written jointly with ANSI and IES. ASHRAE standards describe uniform methods of testing, specify design requirements, and recommend standard practices. They also publish numerous handbooks on fundamentals, applications, refrigeration, and several other comprehensive subjects.
The Engineering ToolBox (2005). ASHRAE - American Society of Heating, Refrigerating and Air-Conditioning Engineers. [online] Available at: https://www.engineeringtoolbox.com/ashrae-d_891.html [Accessed Day Month Year].