GB/T 25077.1-2025 Active National standards

GB/T 25077.1-2025 Acoustics—Determination of airflow resistance—Part1:Static airflow method

GB/T 25077.1-2025 Acoustics—Determination of airflow resistance—Part1:Static airflow method

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

Price: $ 36.00

Basic Information

Standard Code: GB/T 25077.1-2025

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 describes the method of measuring the flow resistance of acoustic porous materials using a stable airflow in a laminar flow state [3], [4].

Development Information

Word Count: 19 Thousand words Pages: 16 pages

Replace the following standards

GB/T 25077-2010 Acoustics—Materials for acoustical applications—Determination of airflow resistance

Adopt standards

ISO 9053-1:2018

Related Standards

GB/T 3238-1982 Active

GB/T 3238-1982 Acoustical levels and refrence quantities

Publish Date: 1982-06-08

GB/T 3240-1982 Active

GB/T 3240-1982 Preferred frequencies for the acoustical measurement

Publish Date: 1982-06-08

GB/T 3785-1983 Replaced

GB/T 3785-1983 Electric, sonic properties and measuring methods for sound level meters

Publish Date: 1983-06-25

GB/T 5265-1985 Replaced

GB/T 5265-1985 Measurement of underwater noise

Publish Date: 1985-07-26

GB/T 7966-1987 Replaced

GB/T 7966-1987 Acoustics—Ultrasonic power measurement in the frequency range 0.5～10MHz

Publish Date: 1987-06-22

GB/T 11452-1989 Abolished

GB/T 11452-1989 Guide to hearing aid standards

Publish Date: 1989-07-04