$37
ASHRAE 129-1997 (RA 2002)
1997
Standard 129-1997 (RA 2002) — Measuring Air Change Effectiveness
- Format:
- Language(s) :
- Published :
- English
- 1997
 
This standard defines a method of measuring air-change effectiveness in mechanically ventilated buildings or spaces. The method involves an age-of-air approach to air-change effectiveness and employs tracer gas procedures to measure the age of air. The age of the air at a given location is the average amount of time that has elapsed since the air molecules at that location entered the building. The definition of air-change effectiveness is based on a comparison of the age of air in the occupied portions of the building to the age of air that would exist under conditions of perfect mixing of the ventilation air.
| ASHRAE 129-1997 (RA 2002) | |
|---|---|
| STANDARD INFO: | |
| Standard Name | ASHRAE 129-1997 (RA 2002) |
| Scope | Standard 129-1997 (RA 2002) -- Measuring Air Change Effectiveness |
| Publisher | ASHRAE - ASHRAE |
| Languages | English |
| State | |
| Publication Year | 1997 |
| Most recent Version | MOST RECENT |
| Whether to be replaced | |
| Addendum | |
| FILE INFO: | |
| ANSI | ANSI Approved |
| File Size | 1 file , 310 KB |
| Note | This product is unavailable in Russia, Belarus |
| Number of Pages | 18 |
| Product Code(s) | D-86423, 86423 |
| Published | 1997 |
| ASHRAE 129-1997 (RA 2002) | ||
|---|---|---|
| History | Publisher Year | |
| ASHRAE 129-1997 (RA 2002) | 1997 | Current |
| ASHRAE 129-1997 | 1997 |
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