The mathematics of Safety Abstract
Decibel Scale of Measurement: Sound power level in decibels (dB) is a logarithmic unit used to describe the ratio of sound intensity (in watts/m2 ) to the lowest sound people of excellent hearing can hear, N0. L=Sound power level (dB) N=Sound power (watts/m2) N0=10-12 watts/m2. L=10log(N/ N0) ................
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