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ANSI/ASHRAE 55-2020

Thermal Environmental Conditions for Human Occupancy

Specifies conditions for acceptable thermal environments and is intended for use in design, operation, and commissioning of buildings and other occupied spaces. The core of the standard specifies methods to determine thermal environmental conditions in buildings and other spaces that a significant proportion of the occupants will find acceptable at a certain metabolic rate and clothing level. A comprehensive analytical method to determine these conditions, and the calculation algorithms used, are included


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American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. [ASHRAE]


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As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.

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