REL - Noise Recommended Exposure Limit

The NIOSH noise Recommended Exposure Limit - REL - for occupational noise.

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The National Institute for Occupational Safety - NIOSH - Recommended Exposure Limit - REL - for occupational noise exposure is

85 decibels, A-weighted, as an 8-hr Time-Weighted Average -TWA - (85 dBA as an 8-hr TWA)

Note! Exposures at and above this level are considered hazardous.

Exposure to continuous, varying, intermittent, or impulsive noise shall never exceed 140 dBA.

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Related Topics

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

Related Documents

Decibel A, B and C The sound pressure is not equally sensed by the human ear at different frequencies. This can be compensated with the dB(A), dB(B) or dB(C) filters
Noise Exposure - Level and Duration Noise exposure should be controlled so that exposure is less than the combination of exposure level and duration.
Daily Noise Dose Level Daily noise dose level when exposed in periods with different noise levels

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Engineering Standards

Engineering Standards