ASHRAE Standard 161-2018 Air Quality within Commercial Aircraft
ASHRAE Standard 161-2018: Air Quality within Commercial Aircraft helps to assure safe and comfortable air quality within commercial passenger air-carrier aircraft.
In general, the aircraft environment is certainly different from other occupied spaces. The obvious reason for this is that—unlike other indoor environments—occupants cannot remove themselves from the environment. Furthermore, the pressure and relative humidity are lower than that found in other environments. Occupant density is also particularly high. This pairs uniquely with the fact that occupant activity levels fall on opposite sides of the spectrum, with passengers being completely sedentary and flight attendants remaining very active. Also connected to this is that the aircraft must be considered both a public place and a workplace.
This standard applies to commercial passenger air-carrier aircraft carrying 20 or more passengers and certified under Title 14 CFR Part 25 1.This standard considers chemical, physical, and biological contaminants as well as moisture, temperature, pressure, and other factors that may affect air quality.
Outside air intended for ventilation in aircraft is first compressed and heated in the aircraft engines or electrically driven compressor. This potentially allows engine-sourced compounds to contaminate the cabin air. For combating this issue, and considering all the above factors, ANSI/ASHRAE Standard 161-2018 lays out guidelines for air quality in air-carrier aircraft. It also specifies measurement and testing methods to comply with these guidelines.
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ASHRAE Standard 161-2018 Air Quality within Commercial Aircraft
- Foreword
![ASHRAE Standard 161-2018: Air Quality within Commercial Aircraft]()
- Purpose
- Scope
- Definitions
- Compliance
- General Requirements
- Ventilation Requirements
- Contaminants
- Measures to Address Contamination of the Cabin and Flight Deck Air During Episodic and Non episodic Events
- Measurements
- Documentation
- References
- Informative Appendix A: Additional Information on Measures to Address Contamination of the Cabin and Flight Deck During
- Episodic or Non episodic Events
- Informative Appendix B: Addenda Description Information
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