Hand-arm / whole body vibration

Vibration is defined as a mechanical phenomenon whereby the oscillations of an object occur about an equilibrium point. Exposure to vibration normally occurs during the operation of machinery, such as hand tools or whilst operating mobile equipment. Human exposure to vibration may be classified into hand-arm vibration, or whole body vibration.


The Occupational Health and Safety Act (85 of 1993), Section 8(2)(d), requires that every employer shall make an evaluation of the risks attached to conditions to which persons are exposed in the workplace and furthermore, that he shall take steps to make such conditions safe where necessary.

Regulation 2(3) of the Environmental Regulations for Workplaces requires that where hand-held tools, which vibrate at a frequency of vibration of less than 1 000 Hz are used at an actual dry-bulb temperature below 6 °C, the employer shall provide an employee operating such tools with lined gloves.

Our Services

OCSA Occupational Hygiene and Environmental Services conducts vibration assessments and surveys to ensure that your company conforms to internationally-accepted exposure limit values for hand-arm and whole body vibration. OCSA makes use of ISO Methods to measure and evaluate vibration exposure in the workplace. We offer practical, easy to implement vibration interventions to mitigate the risk of vibration induced injury presented to employees.

OCSA provides you with the following services:

  • Assessment of potential vibration exposure.
  • Hand-arm vibration surveys.
  • Whole-body vibration surveys.

Please contact us if you require further information or a free quotation »