J1400_201008 Laboratory Measurement of the Airborne Sound Barrier Performance of Flat Materials and Assemblies

Revised

08/05/2010

Features
Issuing Committee
Scope
Content
This SAE Recommended Practice presents a test procedure for determining the airborne sound insulation performance of materials and composite layers of materials commonly found in mobility, industrial and commercial products under conditions of representative size and sound incidence so as to allow better correlation with in-use sound insulator performance. The frequency range of interest is typically 125 to 8000 Hz 1/3 octave band center frequencies.
This test method is designed for testing flat samples, although in some applications the methodology can be extended to evaluate formed parts, pass-throughs, or other assemblies to determine their acoustical properties. For non-flat parts or assemblies where transmitted sound varies strongly across the test sample surface, a more appropriate methodology would be ASTM E90 (with a reverberant receiving chamber) or ASTM E 2249 (intensity method with an anechoic or hemi-anechoic receiving chamber).
Rationale
Content
This document defines alternative methods to ASTM E 90 and ASTM E 2249 for measuring sound transmission loss (STL) of noise control or other flat sample materials.
Meta TagsDetails
DOI
https://doi.org/10.4271/J1400_201008
Pages
16
Citation
SAE International Recommended Practice, Laboratory Measurement of the Airborne Sound Barrier Performance of Flat Materials and Assemblies, SAE Standard J1400_201008, Revised August 2010, Issued May 1982, https://doi.org/10.4271/J1400_201008.
Additional Details
Publisher
Published
Aug 5, 2010
Product Code
J1400_201008
Content Type
Recommended Practice
Status
Revised
Language
English