Abstract
A draft standard INSTA 122:1997 on sound classification of
dwellings is for voting as a common national standard in the
Nordic countries (Denmark, Norway, Sweden, Finland, Iceland) and
in Estonia. The draft standard specifies a sound classification
system with four classes A, B, C and D, where class C is proposed
as the future minimum requirements for new dwellings. The classes
B and A define criteria for dwellings with improved or very good
acoustic conditions, whereas class D may be used for older,
renovated dwellings in which the acoustic quality level of a new
dwelling cannot reasonably be met. The classification system is
based on limit values for airborne sound insulation, impact sound
pressure level, reverberation time and indoor and outdoor noise
levels. The purpose of the standard is to offer a tool for
specification of a standardised acoustic climate and to promote
constructors to improve the acoustic qualities of dwellings so
that not only the minimum requirements of the building regulations
are satisfied.
Original language | English |
---|---|
Title of host publication | Proceedings of the 1997 Autumn Conference |
Place of Publication | At Albans |
Publisher | Institute of Acoustics |
Publication date | 1997 |
Pages | 127-132 |
Publication status | Published - 1997 |