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SAE J1400

2017 Edition, July 1, 2017

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(R) Laboratory Measurement of the Airborne Sound Barrier Performance of Flat Materials and Assemblies

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Product Details:

  • Revision: 2017 Edition, July 1, 2017
  • Published Date: July 2017
  • Status: Active, Most Current
  • Document Language: English
  • Published By: SAE International (SAE)
  • Page Count: 23
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

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 100 to 8000 Hz 1/3 octave-band center frequencies.

This test method is designed for testing flat samples with uniform cross section, 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 E2249 (intensity method with an anechoic or hemi-anechoic receiving chamber).
AIA/NAS Aerospace Standards