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Sound Transmissions
Paths can be interrupted by insulation and blocking air paths. A material's insulation is governed by mass, stiffening and damping...more
How loud is too loud?
Noise above 85 dBA over time will cause hearing loss. In general, the louder the noise, the less time required before hearing loss...more
Part E
Resistance of the Passage of Sound
Why are the new standards in Part E necessary? They are designed to improve modern living.
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In Area I
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