DIN 4102-11:1985 Fire behaviour of building materials and building components; pipe encasements, pipe bushings, service shafts and ducts, and barriers across inspection openings; terminology, requirements and testing
1999DIN EN 1363-2:1999 Fire resistance tests - Part 2: Alternative and additional procedures; German version EN 1363-2:1999
1985DIN 4102-11:1985 Fire behaviour of building materials and building components; pipe encasements, pipe bushings, service shafts and ducts, and barriers across inspection openings; terminology, requirements and testing