Sound Reduction Index legal definition of Sound Reduction Index
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R abbreviation for rex or regina, ‘king’ or ‘queen’. The initial letter is used in proceedings, especially English criminal proceedings, to indicate that the Crown is the plaintiff or, more usually, prosecutor: R v. Haddock In Scotland, prosecutions run in the name of Her (or His) Majesty's Advocate, hence cases are cited HMAv. McFable.
References in periodicals archive
The sound reduction index
[R.sub.w] (dB), describing the capacity of partitions to reduce airborne sound, is determined for separate structures in the noise-suppression chamber during the experiment.
This is called the `weighted sound reduction index
supply and installation of fire protection glazing g30 and f30, Sound reduction index
rw = 37-42 db: Approx.