GB/T 50378-2019 第8.1.3条
| **** | **Control item**: The sound insulation performance of exterior walls, partition walls, floors, doors and windows in main functional rooms of the building (such as guest rooms, lobbies, restaurants) shall meet the lower-limit requirements of the current national standard *Code for Sound Insulation Design of Civil Buildings* GB 50118. The airborne sound insulation performance (weighted sound reduction index + pink noise spectrum adaptation term) between guest rooms and between guest rooms and corridors shall not be less than 45 dB. |