DIN 4102-15-1990
Fire resistance of building materials and components;
Fire behaviour of building materials and elements "Brandschacht"
https://standards.globalspec.com/std/538740/DIN%204102-15
DIN 4102-15-1990
Fire resistance of building materials and components;
Fire behaviour of building materials and elements "Brandschacht"
https://standards.globalspec.com/std/538740/DIN%204102-15

