Acoustics. Laboratory measurement procedures for ducted silencers and air-terminal units. Insertion loss, flow noise and total pressure loss Ingestion-build-279162 BS ISO 17090-3:2008 Health informatics

BS ISO 17090-3:2008  Health informatics

such as the model defined in EN 16931-1 is mapped to a selection of syntax specifications

and assemblies as well as their connections have been illustrated

• two-dimensional effects play an important part (e

This part of ISO/IEC 10026:

Acoustics. Laboratory measurement procedures for ducted silencers and air-terminal units. Insertion loss, flow noise and total pressure loss Ingestion-build-279162 BS ISO 17090-3:2008 Health informatics1 Scope This International Standard specifies methods for determining the insertion loss, in frequency bands, of ducted silencers with and without airflow, the sound power level, in frequency bands, of the flow noise (or regenerated sound) generated by ducted silencers, the total pressure loss of silencers with airflow, and the transmission loss, in frequency bands, of air terminal units. The measurement procedures are intended for laboratory