Maximum A-Weighted Sound Levels

Maximum A-weighted sound levels allowed by OSHA

Maximum A-weighted sound levels allowed by the U.S. Occupational Safety and Health Administration - OSHA -  for periods in a working day: 

Duration per Day
(hr)
Maximum Allowed Sound Level
(dBA)
8 90
6 92
4 95
3 97
2 100
1.5 102
1 105
0.5 110
less than 0.25 115

Related Topics

  • Acoustics - Room acoustics and acoustic properties - decibel A, B and C - Noise Rating (NR) curves, sound transmission, sound pressure, sound intensity and sound attenuation

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