UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close

ASTM E477

Standard Test Method for Laboratory Measurements of Acoustical and Airflow Performance of Duct Liner Materials and Prefabricated Silencers

active, Most Current
Buy Now
Organization: ASTM
Publication Date: 1 June 2013
Status: active
Page Count: 14
ICS Code (Acoustics in building. Sound insulation): 91.120.20
scope:

This test method covers the laboratory testing of some of the acoustical properties of sound attenuating devices including duct liner materials, integral ducts, and in-duct absorptive straight and elbow silencers used in the ventilation systems of buildings. Procedures are described for the measurement of acoustical insertion loss, airflow generated noise, and pressure drop as a function of airflow. 

Excluded from the scope are reactive mufflers and those designed for uses other than in ventilation systems, such as automobile mufflers. 

This test method includes a provision for a simulated semi-reflective plenum to fit around thin-walled duct and silencer test specimens, since the acoustical environments around such thin-walled specimens can affect the measured insertion loss. 

This method tests the performance of the specimen in well-defined and controlled conditions. If the specimen is installed in the field in any different manner, the results may be different. This standard does not provide estimating procedures for determining the actual installed performance of the specimen under field conditions. 

The values stated in SI units are to be regarded as standard. The values in parentheses are provided for information only. 

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.

Document History

ASTM E477
June 1, 2013
Standard Test Method for Laboratory Measurements of Acoustical and Airflow Performance of Duct Liner Materials and Prefabricated Silencers
This test method covers the laboratory testing of some of the acoustical properties of sound attenuating devices including duct liner materials, integral ducts, and in-duct absorptive straight and...
June 1, 2013
Standard Test Method for Laboratory Measurements of Acoustical and Airflow Performance of Duct Liner Materials and Prefabricated Silencers
This test method covers the laboratory testing of some of the acoustical properties of sound attenuating devices including duct liner materials, integral ducts, and in-duct absorptive straight and...
May 1, 2006
Standard Test Method for Measuring Acoustical and Airflow Performance of Duct Liner Materials and Prefabricated Silencers
This test method covers the laboratory testing of some of the acoustical properties of sound attenuating devices including duct liner materials, integral ducts, and in-duct absorptive straight and...
October 10, 1999
Standard Test Method for Measuring Acoustical and Airflow Performance of Duct Liner Materials and Prefabricated Silencers
This test method covers the laboratory testing of duct liner materials, integral ducts, and induct absorptive straight and elbow silencers used in the ventilation systems of buildings. Procedures are...
October 10, 1996
Standard Test Method for Measuring Acoustical and Airflow Performance of Duct Liner Materials and Prefabricated Silencers
A description is not available for this item.
January 1, 1990
Standard Test Method for Measuring Acoustical and Airflow Performance of Duct Liner Materials and Prefabricated Silencers
A description is not available for this item.
February 24, 1989
STANDARD TEST METHOD FOR MEASURING ACOUSTICAL AND AIRFLOW PERFORMANCE OF DUCT LINER MATERIALS AND PREFABRICATED SILENCERS
A description is not available for this item.
July 27, 1984
STANDARD METHOD OF TESTING DUCT LINER MATERIALS AND PREFABRICATED SILENCERS FOR ACOUSTICAL AND AIRFLOW PERFORMANCE
A description is not available for this item.

References

Advertisement