BS EN ISO 717-1: 1997
“Rating of sound insulation in buildings and of building elements. Part 1 – Airborne sound insulation”.
This British, European and International Standard provides quantifiable ratings for the results of tests carried out in accordance with BS EN ISO 10140-1: 2010 + A1: 2012. The Standard provides a set of mathematical rules that “weights” the sound barrier performance of a door assembly, according to the more commonly encountered frequencies. The result is an “Rw” single-figure performance guide - the weighted average sound reduction index.
You may also find our FAQs on Acoustic Sealing for Door Assemblies helpful.
This link to British Standards Online may be of interest.
Relevant Lorient links: