The level of daily
exposure to
vibration for any worker which must not be exceeded. For
hand-arm vibration the daily exposure limit value is 5 m/s
2 A(8), whereas for
whole body vibration the daily exposure limit value is 1.15 m/s
2 A(8).
Where the
exposure of an
employee to
vibration is usually below the
exposure action value but varies markedly from time to time, it may occasionally exceed the exposure limit value, provided that
(a) any
exposure to
vibration averaged over one week is less than the exposure limit value;
(b) there is evidence to show that the
risk from the actual pattern of
exposure is less than the corresponding
risk from constant
exposure at the exposure limit value;
(c)
risk is reduced to as low a level as is reasonably practicable, taking into account the special circumstances;
(d) the
employees concerned are subject to increased
health surveillance.
