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ASHRAE Guideline 28-2021

Air Quality within Commercial Aircraft

Serves as a companion to ASHRAE Standard 161 (2018) and provides supplemental information on air quality in air-carrier aircraft and on measurement and testing related to aircraft air quality. Applies to commercial passenger air-carrier aircraft carrying 20 or more passengers and certified under Title 14 CFR Part 25 (FAA 2008b). Considers chemical, physical, and biological contaminants as well as, but not limited to, factors such as moisture, temperature, and pressure that may affect air quality. Dual units of measurement.


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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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