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ASTM E 741 : 2011

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Determining Air Change in a Single Zone by Means of a Tracer Gas Dilution
Available format(s)

Hardcopy , PDF

Superseded date

08-04-2023

Language(s)

English

Published date

09-01-2011

CONTAINED IN VOL. 04.11, 2017 Defines techniques using tracer gas dilution for determining a single zone's air change with the outdoors, as induced by weather conditions and by mechanical ventilation.

1.1 This test method covers techniques using tracer gas dilution for determining a single zone's air change with the outdoors, as induced by weather conditions and by mechanical ventilation. These techniques are: (1) concentration decay, (2) constant injection, and (3) constant concentration.

1.2 This test method is restricted to any single tracer gas. The associated data analysis assumes that one can characterize the tracer gas concentration within the zone with a single value. The zone shall be a building, vehicle, test cell, or any conforming enclosure.

1.3 Use of this test method requires a knowledge of the principles of gas analysis and instrumentation. Correct use of the formulas presented here requires consistent use of units, especially those of time.

1.4 Determination of the contribution to air change by individual components of the zone enclosure is beyond the scope of this test method.

1.5 The results from this test method pertain only to those conditions of weather and zonal operation that prevailed during the measurement. The use of the results from this test to predict air change under other conditions is beyond the scope of this test method.

1.6 The text of this test method references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered requirements of this test method.

1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Committee
E 06
DocumentType
Test Method
Pages
18
ProductNote
Reconfirmed 2011
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM E 631 : 2015 : REDLINE Standard Terminology of Building Constructions
ASTM E 260 : 1996 Standard Practice for Packed Column Gas Chromatography
ASHRAE HDBK FUNDAMENTALS : 2013 ASHRAE HANDBOOK - FUNDAMENTALS
ASHRAE 62 : 2001 VENTILATION FOR ACCEPTABLE INDOOR AIR QUALITY
ASTM E 1186 : 2017 : REDLINE Standard Practices for Air Leakage Site Detection in Building Envelopes and Air Barrier Systems

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