BS 8233:1999

Committees responsible
Foreword
Introduction
1 Scope
2 Terms and definitions
3 Symbols
4 Measuring equipment and accuracy
5 Planning and design
6 External noise sources
7 Specific types of building
8 Sound insulation in buildings and control of
      noise from building services
Annex A (informative) Noise calculations
Annex B (informative) Noise rating
Annex C (informative) Specification of sound insulation
Annex D (informative) Special problems requiring
                      expert advice
Annex E (informative) Airborne and impact sound insulation
Bibliography
Figure 1 - Normalized road traffic noise spectrum
           derived from BS EN 1793-3: 1998
Figure 2 - Typical contours around an airport
Figure 3 - Average noise spectra of a jet airliner after
           take-off and before landing
Figure 4 - Train noise spectra with mark 2 and mark 3
           coaches measured at 25 m from the track centre
           line, in a free field, at 160 km/h and on
           'good quality' conventially ballasted track
           with continuously welded rail
Figure 5 - Characteristics of sound absorbing materials
Figure A.1 - The addition of two noise levels
Figure A.2 - Subtraction of noise levels
Figure A.3 - Sound insulation of non-uniform partitions
Figure E.1 - Transmission paths (via the structure) of
             noise originating in room 1 (diagrammatic)
Figure E.2 - Indirect sound leakage paths
Figure E.3 - Mass law curve
Table 1 - Symbols
Table 2 - Typical traffic noise levels measured about
            1 m from the facade
Table 3 - Data used in the calculation of the noise level
            inside a room
Tabel 4 - The calculation
Table 5 - Indoor ambient noise levels in spaces when they
            are unoccupied
Table 6 - Indoor ambient noise levels in spaces when they
            are unoccupied and privacy is also important
Table 7 - Maximum steady noise levels for reliable speech
            communication
Table 8 - Guide to reverberation time T at 500 Hz in
            unoccupied rooms for speech and music
Table 9 - Typical sound insulation specification for wall
            separating two cinema screens
Table 10 - Sound insulation of typical windows
Table 11 - The sound insulation of roofs
Table A.1 - Standard A-weighting values (dB)
Table B.1 - Noise rating values
Table B.2 - Values of a and b
Table C.1 - Common indices used to describe airborne and
            impact sound insulation
Table E.1 - Sound insulation of imperforate sheet materials
Table E.2 - Airborne sound insulation of walls and
            partitions
Table E.3 - Airborne and impact sound insulation of floor
            constructions