Table 2. 2011 Noise levels.
| Area/Operation | LAeq 1 min dB(A) |
period before eight h standard exceeded* (hrs:min) |
Points where/when measurements taken |
|---|---|---|---|
| Grinding room (3) | |||
| Grinder | 88 | 4:00 | During grinding of orthotic. |
| Grinder | 84 | 10:00 | Whilst no grinding was being undertaken but extraction was on. |
| Grinder | 88 | 4:00 | Grinding orthotic |
| Laminating Room (4) | |||
| Right hand extraction hood | 93 | 1:16 | 30 cm from hood. Both left and right hood slide gate dampers open. |
| Right hand extraction hood | 89 | 3:12 | 30 cm from hood. Both left side gate damper closed and right slide damper open. |
| Left hand extraction hood | 93 | 1:16 | 30 cm from hood. Both left and right hood slide gate dampers open |
| Left hand extraction hood | 96 | 0:38 | 30 cm from hood. Both left side gate damper closed and right slide damper open |
*without hearing protection