
Fire-resistance tests - Elements of building construction Part 9: Specific requirements for non-loadbearing ceiling elements
出版:International Organization for Standardization

专家解读视频
GB/T 9978.9-2008 - Modified
KS F 2257-9:2008 - Identical
KS F 2257-9:2013 - Identical
DIN 4102-2 (1977-09) - Identical