Table 2.
Partial and total exposure in rock drilling, with different rock drill equipment
| Equipment | Average vibration exposure (RMS) ms−2 | Average daily exposure time (min.) | Number of measurements |
|---|---|---|---|
| Rock drill hand jack | 16 | 20 | 8 |
| Rock drill jack leg | 16 | 15 | 12 |
| Standard rock drill with iron weight or vibration dampening in hand grips | 14 | 6 | 10 |
| Standard rock drill without vibration dampening or iron weight | 33 | 3 | 7 |
| Other tools | 10 (estimated) | 1 | – |
| Total: the partial exposures equals an average RMS of 17 ms−2 | 17 | 45 | 37 |