LST ISO 1996-2:2008 Acoustics - Description, measurement and assessment of environmental noise - Part 2: Determination of environmental noise levels (ISO 1996-2:2007, identical)
2008LST ISO 1996-2:2008 Acoustics - Description, measurement and assessment of environmental noise - Part 2: Determination of environmental noise levels (ISO 1996-2:2007, identical)