GB/T 21228.1-2007 Active National standards

GB/T 21228.1-2007 Acoustics—Sound-scattering properties of surfaces Part 1:Measurement of the random-incidence scattering coefficient in a reverberation room

Publish Date: 2007-11-14 Implement Date: 2008-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 21228.1-2007

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Acoustic metrology

ICS Name: Building acoustics and sound insulation

Publish Date: 2007-11-14

Implement Date: 2008-05-01

Pages: 14 pages

Scope

This part of GB/T 21228 specifies the measurement method of the surface irregular incident sound scattering coefficient caused by surface roughness. The measurement should be carried out in a reverberation chamber using full-scale models or physical scale models. The measurement results can be used to describe how much sound reflection from the surface deviates from specular reflection. The results can also be used for comparison and design calculations related to indoor acoustics and noise control. This method is not suitable for characterizing the spatially uniform distribution of surface sound scattering.

Development Information

Word Count: 22 Thousand words Pages: 14 pages

Referenced Standards

GB/T 17247.1-2000 Acoustics—Attenuation of sound during propagation outdoors—Part 1:Calculation of the absorption of sound by the atmosphere GB/T 20247-2006 Acoustics—Measurement of sound absorption in a reverberation room

Adopt standards

ISO 17497-1:2004

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