KS F 2863-2-2017 Rating of floor impact sound insulation for impact source in buildings and of building elements-Part 2:Floor impact sound insulation against standard heavy impact source
2017KS F 2863-2-2017 Rating of floor impact sound insulation for impact source in buildings and of building elements-Part 2:Floor impact sound insulation against standard heavy impact source
2007KS F 2863-2-2007 Rating of floor impact sound insulation for impact source in buildings and of building elements-Part 2:Floor impact sound insulation against standard heavy impact source