DIN EN 13501-2:2023-12
建筑产品和建筑构件的防火分类 第 2 部分：使用耐火和/或防烟测试数据进行分类 不包括通风服务；德文版 EN 13501-2:2023
Fire classification of construction products and building elements - Part 2: Classification using data from fire resistance and/or smoke control tests, excluding ventilation services; German version EN 13501-2:2023