Norwegian sound quality classification standard and related legislation

Abstract

The Norwegian standard for sound classification of buildings, NS 8175 1, contains noise and sound insulation criteria for indoor conditions in buildings, and criteria for outdoor noise near buildings and in outdoor areas surrounding buildings. There are four acoustic quality classes. Present focus in technical regulations and laws in Norway is on universal design and accessibility for all in public and work buildings. The suitability of the present acoustical limit values and relevant types of criteria are reconsidered especially for hearing and sight disabled people of all ages.