BS 5821-3 84th Edition, December 31, 1984
Method for Rating Sound Insulation in Buildings and of Building Elements Part 3: Method for Rating the Airborne Sound Insulation of Facade Elements and Facades
Includes all amendments and changes through Reaffirmation Notice , March 15, 1993
Additional Comments: SAME AS ISO 717/3
Published By:British Standards Institution (BSI)
Method of deriving a single-figure rating of the performance of façade elements and façades by comparison with a standard reference curve. Applicable to measurements made according to BS 2750, Part 3 and 5.