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IEVref:801-31-39ID:
Language:enStatus: Standard
Term: sound reduction index
Synonym1: transmission loss
[Preferred]
Synonym2: sound insulation
[Preferred]
Synonym3:
Symbol:
Definition: of a partition, for a specified frequency band, difference in decibels between the average sound pressure levels in the reverberant source and receiving rooms, plus ten times the logarithm to the base ten of the ratio of the area of the common partition to the total Sabine absorption in the receiving room


Publication date:1994-07
Source:ISO 140/3
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