Home / Standards / GB/T 19889.3-2026 GB/T 19889.3-2026 Active Acoustics—Field measurement of sound insulation in buildings and of building elements—Part 3: Airborne sound insulation of facade elements and facades 声学 建筑和建筑构件隔声的现场测量 第3部分：外墙和外墙构件空气声隔声 Standard Type GBT ICS 91.120.20 CCS A59 Status 现行 Issue Date 2026-01-28 Implementation 2026-08-01 Responsible Dept 中国科学院 Drafting Unit N/A