GB/T 25077.2-2026 Active National standards

GB/T 25077.2-2026 Acoustics—Determination of airflow resistance—Part 2:Alternating airflow method

Publish Date: 2026-01-28 Implement Date: 2026-08-01 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 25077.2-2026

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Acoustic metrology

ICS Name: Acoustics and acoustic measurement

Publish Date: 2026-01-28

Implement Date: 2026-08-01

Pages: 24 pages

Scope

This document describes the alternating airflow method for measuring the flow resistance of acoustic porous materials.

Development Information

Word Count: 31 Thousand words Pages: 24 pages

Referenced Standards

ISO/IEC Guide 98-3

Adopt standards

ISO 9053-2:2020

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