Keywords:
Classes, Closures, Components, Construction, Doors, Doors of wood, Double-wing type, Enclosure of space, Endings, Fire protection, Fire resistance, Fire resistance class, Fire safety, Fire spread prevention, Fire tests, Fire-resistant time, Measurement, Measuring techniques, One-wing type, Parameters, Radiative heat transfer, Smoke density, Specification (approval), Steel doors, Steels, Structural fire protection, Surface spread of flame, Swing doors, Test results, Test specimens, Testing, Testing conditions, Wood