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Home / / ANSI/ASHRAE Standard 55-2017

ANSI/ASHRAE Standard 55-2017

ANSI/ASHRAE Standard 55-2017

Thermal Environmental Conditions for

Human Occupancy

ANSI/ASHRAE Standard 55-2017 ;Thermal Environmental Conditions for Human Occupancy;comfort ;ASHRAE; comfort


The purpose of this standard is to specify the combinations of indoor thermal environmental factors and personal factors that will produce thermal environmental conditions acceptable to a majority of the occupants within the space


2.1 The environmental factors addressed in this standard are temperature, thermal radiation, humidity, and air speed; the personal factors are those of activity and clothing.

2.2 It is intended that all of the criteria in this standard be applied together, as comfort in the indoor environment is complex and responds to the interaction of all of the factors that are addressed herein.2.3 This standard specifies thermal environmental conditions acceptable for healthy adults at atmospheric pressure equivalent to altitudes up to 3000 m (10,000 ft) in indoor spaces designed for human occupancy for periods not less than 15 minutes.

2.4 This standard does not address such nonthermal environmental factors as air quality, acoustics, and illumination or other physical, chemical, or biological space contaminants that may affect comfort or health.2.5 This standard shall not be used to override any safety, health, or critical process requirements


ANSI/ASHRAE Standard 55-2017


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