Document ID: chunk:federal_register_of_legislation:F2016L00426:reg:0:p20
Version: federal_register_of_legislation:F2016L00426
Segment Type: reg
Provision Reference: reg 0 (pt 20/20)
Character Range: 77742–78611

94 dB(A).
This calculated LAeq,8h value can be compared with the exposure standard for noise i.e. LAeq,8h = 85 dB(A). Additionally, noise exposure points can be used to prioritise the noise control program by showing which tasks make the greatest contribution to the total noise exposure.
In the example above the worker's LAeq,8h is greater than the standard, so noise control action is needed. Although it only lasts for one minute, the 120 dB(A) task contributes more than eight times as much as the other task to the total exposure and so should be the first one tackled.
In this scheme the exposure standard for noise – LAeq,8h = 85 dB(A) – is 100 points.

Table C1 Exposure points for 75-105 dB(A)/15minutes – 12 hours

Sound Level   Duration of exposure per shift
LAeq,T dB(A)
15 min        30 min                           1 h  2 h   4 h   8 h   10 h*  12 h*