DS DS/EN ISO 10140-1/A1
DS DSEN SO 10140-1A1 2012-MAR-06 Acoustcs - Laboratory measurement of sound nsulaton of buldng elements - Part 1 Applcaton rules for specfc products - Amendment 1 Gudelnes for the determnaton of the sound reducton ndex of jonts flled wth fllers andor seals