GB/T 27763-2011 (English Version) PDF

Standard No.: GB/T 27763-2011
Language: Chinese, Available in English version
Release Date: 2011
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 27763-2011

Scope: This standard specifies a method for measuring the spatial sound field distribution curve of a given workplace. A method is given for determining from measured data two parameters that characterize the acoustic performance of a workplace in terms of noise control: the sound pressure level excess relative to a free field, and the sound pressure level attenuation when the distance is doubled. This standard applies to any shape and any size of the work room, as long as the number of microphone positions meet the requirements of the regression calculation. This standard does not apply to sound quality evaluations related to language communication or other psychological aspects.

GB/T 27763-2011 Referenced Document

GB/T 3241 Electroacoustics.Octave-band and fractional-octave-band filters
GB/T 3767-1996 Acoustics--Determination of sound power levels of noise sources using sound pressure--Engineering method in an essentially free field over a reflecting plane
GB/T 3785.1 Electroacoustics—Sound level meters—Part 1: Specifications*， 2023-05-23 Update
GB/T 4129 Acoustics-Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels
GB/T 6881.1 Acoustics--Determination of sound power levels of noise sources using sound pressure--Precision methods for reverberation rooms
GB/T 6882 Acoustics.Determination of sound power levels and sound energy levels of noise sources using sound pressure.Precision methods for anechoic rooms and hemi-anechoic rooms*， 2016-02-24 Update

2011 GB/T 27763-2011 Acoustics.Measurement and parametric description of spatial sound distribution curves in workrooms for evaluation of their acoustical performance