EN ISO 17624:2004

1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Basic principles and conditions of application
   5.1 Contributions to the sound attenuation
   5.2 Absorption close to the sound source
   5.3 Screening effect
   5.4 Decoupling
   5.5 Absorption away from the sound source
   5.6 Further effects of screens
6 Types of acoustical screens and special requirements
   6.1 Partitioning of large rooms
   6.2 Noise control for individual work stations
   6.3 Protection of individual work stations
7 Combined effect of acoustical screens and acoustical claddings
8 Acoustical requirements for planning and verification purposes
   8.1 Sound absorption
   8.2 Sound insulation
   8.3 In-situ sound attenuation
9 Information for user inquiries and information to be provided
   by the supplier/manufacturer of a screen
   9.1 Information to be provided by the user
   9.2 Information to be provided by the supplier/manufacturer
Annex A (informative) Case studies
Bibliography

ISO 17624:2004 deals with the effectiveness of acoustical screens. It specifies the acoustical and operational requirements to be agreed upon between the supplier or manufacturer and the user of acoustical screens. ISO 17624:2004 is applicable to the following types of acoustical screens: free-standing acoustical screens for offices, service areas, exhibition areas, and similar rooms; acoustical screens integrated in the furniture of such rooms; portable and removable acoustical screens for workshops; fixed room partitions with more than 10 % of the connecting area open and acoustically untreated.Walls of partial acoustic enclosures and cabins which, together with the room boundary surfaces, also partition a room and provide more than 10 % open and acoustically untreated area, are also treated as acoustical screens.ISO 17624:2004 is not applicable to cabinet walls and similar multi-layer walls whose thickness exceeds 0,2 m, nor to banners and other types of suspended baffles.