DIN EN ISO 140-11:2005 Acoustics – Measurement of sound insulation in buildings and components – Part 11: Measurement of impact sound reduction through ceiling supports on light cover ceilings in test stands
2005DIN EN ISO 140-11:2005 Acoustics – Measurement of sound insulation in buildings and components – Part 11: Measurement of impact sound reduction through ceiling supports on light cover ceilings in test stands