The lower exposure action value is:
A daily or weekly personal noise exposure of 80 dB (A-weighted)
A peak sound pressure of 135 dB (C-weighted)

The following actions should be taken if exposure is likely to exceed the lower action value:

The upper exposure action value is:
A daily or weekly personal noise exposure of 85 dB (A-weighted)
A peak sound pressure of 137 dB (C-weighted)

The following actions should be taken if exposure is likely to exceed the upper action value:

The exposure limit value is: A daily or weekly personal noise exposure of 87 dB (A-weighted) A peak sound pressure of 140 dB (C-weighted) - after having taken the effect of ear protection into account
This level must not be exceeded

dB(A) stands for the A weighted decibel scale. To give you an idea, if you cannot hear what someone is saying 2m away the sound level is likely to be around 85 dB(A). If you cannot hear what someone is saying 1m away the sound level is likely to be around 90 dB(A).



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