Hand-Arm vibration is the vibration transmitted through the hand to the arm while holding a vibrating tool. High exposure to hand-arm vibration can commonly occur when using (but not limited to) the following tools:

  • Pneumatic hammers
  • Drills
  • Pavement Breakers
  • Compactors
  • Grinders
  • Polishes/sanders
  • Saws
    • Chainsaws
    • Circular saws
    • Reciprocating saws
  • Nailers
  • Weedwhackers

Health Concerns from Exposure to Hand-Arm Vibration

Exposure to high levels of hand-arm vibration has been shown to cause the following health concerns:

  • Vascular disorders such as vibration white finger
  • Neurological disorders such as tingling and numbness to the fingers and hands
  • Musculoskeletal disorders such as muscular weakness and pain in the hands and arms

Measurement of Hand-Arm Vibration

A triaxial accelerometer is strapped around the operator’s hand. This is connected to a control unit strapped around the operator’s bicep. The measurement takes about 10 minutes. The triaxial accelerometer measures the vibration in 3 axes simultaneously. The x-axis (forward and back), the y-axis (side to side) and the z-axis (up and down). The results are then compared to the following exposure limits:

If you think personnel in your workforce may be exposed to harmful levels of WBV then contact us for a free quote.

Measurements are taken to comply with the following standard:
ISO 5349.1 – 2001. (2001). Mechanical Vibration – Measurement and Exposure Of Human Exposure to Hand Transmitted Vibration.