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When you click on the details link in a row, the details of the standard will appear at the bottom of the page.
Standard numberTitlePubl. dateLanguageStatus 
NBN S 01-400 : 1977Acoustics - Sound insulation requirements02/1977 NL/FR Active details
NBN S 01-400-1 : 2008Acoustic criteria for residential buildings01/2008 NL/FR Active details
NBN S 01-400-2 : 2012Acoustic criteria for school buildings10/2012 NL/FR Active details
prNBN S 01-400-1 : 2019Acoustical criteria for dwellings09/2019 NL/FR Active details