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GB/T 25077.1-2025 Active
GB/T 25077.1-2025 Acoustics—Determination of airflow resistance—Part1:Static airflow method
Abstract
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].
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 25077.1-2025 |
| CCS | Acoustic metrology |
| ICS | Acoustics and acoustic measurement |
| Implement Date | 2026-07-01 |
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