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IEVref:415-06-01ID:
Language:enStatus: Standard
Term: sound pressure level
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Definition: logarithm of the ratio of the r.m.s. value of a given sound pressure to the reference sound pressure.

NOTE 1 – Sound pressure level in decibels is 20 times the logarithm to the base ten of this ratio

NOTE 2 – For WTGS, the reference sound pressure is equal to 20 ÁPa.


Publication date:1999-04
Source:801-22-07 MOD
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