GB/T 3222.2-2022 (English Version) PDF

Scope: The assessment of environmental noise limits and the comparison of scenarios in space studies are based on sound pressure levels. This document describes how to measure sound pressure levels. The sound pressure level can be determined by direct measurement and extrapolation of the measurement results. This document is primarily intended for outdoor use, but some guidelines for indoor measurements are also given. To a large extent, the uncertainty of measurement determined and reported varies in each case and is inseparable from the effort of the user in the measurement, so no limit is set on the maximum allowable uncertainty. Due to the difference between the operating and propagation conditions during the actual measurement and the reference operating or propagation conditions, the measurement results are usually combined with the calculations, and the measurement results are corrected. This document applies to all types of environmental noise sources, such as road and rail traffic noise, aircraft noise and industrial noise.

GB/T 3222.2-2022 Referenced Document

GB/T 3222.1-2022 Acoustics—Description, measurement and assessment of environmental noise—Part 1: Basic quantities and assessment procedures
IEC 61260 Amendment 1 - Electroacoustics - Octave-band and fractional-octave-band filters
IEC 61672-1 Electroacoustics - Sound level meters - Part 1: Specifications
ISO 1996-1 Acoustics - Description, measurement and assessment of environmental noise - Part 1: Basic quantities and assessment procedures

2022 GB/T 3222.2-2022 Acoustics—Description, measurement and assessment of environmental noise—Part 2: Determination of sound pressure levels
2009 GB/T 3222.2-2009 Acoustics-Description,measurement and assessment of environmental noise-Part 2: Determination of environmental noise levels
1994 GB/T 3222-1994 Acoustics--Measurement method of environmental noise