ASTM E966

Standard Guide for Field Measurements of Airborne Sound Attenuation of Building Facades and Facade Elements

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Organization: ASTM
Publication Date: 1 November 2018
Status: active
Page Count: 15
ICS Code (Acoustics in building. Sound insulation): 91.120.20
scope:

This guide may be used to determine the outdoor-indoor noise reduction (OINR), which is the difference in sound pressure level between the free-field level outdoors in the absence of the structure and the resulting sound pressure level in a room. Either a loudspeaker or existing traffic noise or aircraft noise can be used as the source. The outdoor sound field geometry must be described and calculations must account for the way the outdoor level is measured. These results are used with Classification E1332 to calculate the single number rating outdoor-indoor noise isolation class, OINIC. Both OINR and OINIC can vary with outdoor sound incidence angle.

Under controlled circumstances where a single façade is exposed to the outdoor sound, or a façade element such as a door or window has much lower transmission loss than the rest of the façade, an outdoor-indoor transmission loss, OITL(θ), or apparent outdoor-indoor transmission loss, AOITL(θ), may be measured using a loudspeaker source. These results are a function of the angle of incidence of the sound field. By measuring with sound incident at many angles, an approximation to the diffuse field transmission loss as measured between two rooms can be obtained. The results may be used to predict interior sound levels in installations similar to that tested when exposed to an outdoor sound field similar to that used during the measurement. The single number ratings of apparent outdoor-indoor transmission class, AOITC(θ), using AOITL(θ) and field outdoor-indoor transmission class, FOITC(θ), using OITL(θ) may be calculated using Classification E1332. These ratings also may be calculated with the data obtained from receiving room sound pressure measurements performed at several incidence angles as discussed in 8.6.

To cope with the variety of outdoor incident sound field geometries that are encountered in the field, six testing techniques are presented. These techniques and their general applicability are summarized in Table 1 and Figs. 1-6. The room, façade, or façade element declared to be under test is referred to as the specimen.

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

The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Document History

ASTM E966
November 1, 2018
Standard Guide for Field Measurements of Airborne Sound Attenuation of Building Facades and Facade Elements
This guide may be used to determine the outdoor-indoor noise reduction (OINR), which is the difference in sound pressure level between the free-field level outdoors in the absence of the structure...
January 15, 2018
Standard Guide for Field Measurements of Airborne Sound Attenuation of Building Facades and Facade Elements
This guide may be used to determine the outdoor-indoor noise reduction (OINR), which is the difference in sound pressure level between the free-field level outdoors in the absence of the structure...
September 1, 2010
Standard Guide for Field Measurements of Airborne Sound Attenuation of Building Facades and Facade Elements
This guide may be used to determine the outdoor-indoor noise reduction (OINR), which is the difference in sound pressure level between the free-field level outdoors in the absence of the structure...
September 1, 2010
Standard Guide for Field Measurements of Airborne Sound Attenuation of Building Facades and Facade Elements
This guide may be used to determine the outdoor-indoor noise reduction (OINR), which is the difference in sound pressure level between the free-field level outdoors in the absence of the structure...
April 1, 2004
Standard Guide for Field Measurements of Airborne Sound Insulation of Building Facades and Facade Elements
This guide covers field procedures for measuring the sound level reduction or sound transmission loss of an installed building facade or facade element in specified frequency bands. These values may...
April 10, 2002
Standard Guide for Field Measurements of Airborne Sound Insulation of Building Facades and Facade Elements
This guide covers field procedures for measuring the sound level reduction or sound transmission loss of an installed building facade or facade element in specified frequency bands. These values may...
January 10, 1999
Standard Guide for Field Measurement of Airborne Sound Insulation of Building Facades and Facade Elements
1. Scope 1.1 This guide covers field procedures for measuring the sound level reduction or sound transmission loss of an installed building facade or facade element in specified frequency bands....
January 1, 1992
Standard Guide for Field Measurement of Airborne Sound Insulation of Building Facades and Facade Elements
A description is not available for this item.
July 27, 1990
STANDARD GUIDE FOR FIELD MEASUREMENT OF AIRBORNE SOUND INSULATION OF BUILDING FACADES AND FACADE ELEMENTS
A description is not available for this item.
March 1, 1984
STANDARD GUIDE FOR FIELD MEASUREMENT OF AIRBORNE SOUND INSULATION OF BUILDING FACADES AND FACADE ELEMENTS
A description is not available for this item.

References

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