Part II exposure to vibration averaged over one week

The exposure to vibration averaged over one week (A(8)_week) is the total exposure occurring within a period of seven consecutive days, normalised to a reference duration of five 8-hour days (40 hours). It is ascertained using the formula:

$${A(8)}_{\text{week}}=\sqrt{\genfrac{}{}{0.1ex}{}{1}{5}}\sum _{j=1}^7{A(8)}_j^2$$

where:

• A(8)_j is the daily exposure for day j.

The exposure to vibration averaged over one week is for use only for the purposes of regulation 6(5).