GB/T 46960-2025 Active National standards

GB/T 46960-2025 Acoustics—Frequency-weighting characteristic for infrasound measurements

Publish Date: 2025-12-31 Implement Date: 2026-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 46960-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Acoustic metrology

ICS Name: Acoustics and acoustic measurement

Publish Date: 2025-12-31

Implement Date: 2026-07-01

Pages: 16 pages

Scope

This document specifies a frequency weighting characteristic, labeled as G, for measuring the weighted sound pressure level of sounds or noises with part or all of their frequency spectrums falling within the range of 1 Hz to 20 Hz.
Note 1: For broadband sounds whose frequency spectrums cover both infrasound and audible sound ranges, the infrasound weighted sound pressure level measured by this document supplements the description of the noise using standardized methods that only cover the audible sound range (such as the A-weighted sound pressure level). Generally, the results of these quantities and those of G-weighting are different, but there's no need to pay attention to this difference, because the noise frequency ranges involved in their respective results are different and have almost no overlap.