Whole-body vibration WBV

Mechanical vibration [shock] transmitted to the body as a whole, usually through areas of the body (e.g. buttock, soles of the feet, back) in contact with a supporting surface that is vibrating (or subjected to shock motion). ISO 5805

Hand-transmitted vibration HTV, Hand-arm vibration HAV

Mechanical vibration [shock] directly applied or transmitted to the hand-arm system, commonly through the palm of the hand or through the fingers gripping a tool or workpiece. ISO 5805

Exposure time

Actual or notional duration (derived by a prescribed standard computational procedure) of human exposure to mechanical vibration (or repeated shock motion) treated as continuous in nature. ISO 5805

Work station

A position, in the vicinity of a machine, which can be occupied by the operator or a position where a task is carried out. ISO 11690-1:2000