GB 50222-2017 第4.0.9条
| | When song-and-dance entertainment and amusement venues (such as KTVs, dance halls, etc.) in hotel buildings are located in buildings of fire resistance rating Class I or II, their ceiling finish materials shall be Class A, and other parts (walls, floors, partitions, fixed furniture, etc.) shall not be lower than Class B1; when located in buildings of fire resistance rating Class III, ceilings and walls shall be Class A, and other parts shall not be lower than Class B1. |