Excuse me, what are the requirements for the combustion performance grade of general interior decoration materials?

According to table 5. 1. Code for Fire Protection Design of Interior Decoration of Buildings 1, the combustion performance of ceiling and wall decoration materials should not be lower than Grade A when the single and multi-storey audience hall and multi-function hall are more than 400m2, and should not be lower than Grade A when it is less than or equal to 400m2.

The combustion performance of ceiling decoration materials in single and multi-storey song and dance entertainment places should not be lower than Grade A, and the combustion performance of wall and ground decoration materials should not be lower than Grade B. ..

Extended data

According to the Code for Fire Protection Design of Interior Decoration of Buildings (GB 50222 -20 17 4.0.5), the ceiling, wall and floor of evacuation stairwell and antechamber should be decorated with Grade A materials, and option A is wrong; According to 4.0. 1 1, the ceiling, wall and floor of the kitchen in the building are decorated with Grade A materials;

According to 6.4. 13 -4, the combustion performance of decoration materials in the fire zone shall be Grade A; According to code for fire protection design of buildings (GB 50016-2014 (2018 version) 6.4. 14-4, the combustion performance of the interior decoration materials of the refuge walkway shall be Grade A. ..