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ASHRAE 129 : 1997

Current
Current

The latest, up-to-date edition.

MEASURING AIR-CHANGE EFFECTIVENESS
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-1997

Foreword
1 Purpose
2 Scope
3 Definitions
4 Criteria for Acceptable Test Space
5 Instruments and Apparatus
6 Procedures for Measuring Air-Change Effectiveness
7 Calculations
8 Reporting of Information on Test Space and HVAC System
9 References
Appendix A - Bibliography
Appendix B - Relationship of Air-Change Effectiveness to Design
             Ventilation Rates in ANSI/ASHRAE Standard 62-2001
Appendix C - Exact Equations for Calculating Age of Air from Tracer
             Gas Concentrations
Appendix D - Determination of Average Tracer Gas Concentration from
             a Series of Concentration Measurements with Uneven Time
             Intervals Between Measurements
Appendix E - Measurement Uncertainty
Appendix F - Selecting the Tracer Decay or Tracer Step-Up Methods
Appendix G - Estimation of Tracer Gas Injection Rates
Appendix H - Recommended Procedure for Ensuring Negligible Leakage
             in Sampling Systems

Describes a method for measuring air-change effectiveness in mechanically ventilated spaces and buildings that meet specified criteria.

Committee
TC 5.3
DocumentType
Standard
Pages
20
PublisherName
American Society of Heating, Refrigerating & Air Conditioning Engineers
Status
Current

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