Hand-Arm Vibration Disorders

Causes, Symptoms, Preventive Actions

What Are Hand-Arm Vibration Disorders?
Vascular and non-vascular disorders which include the commonly known White Finger Blanching.

What Causes Hand-Arm Vibration Disorders?
Prolonged exposure to vibration from power and hand tools.

Which Tools?
Chain saws, percussive hammers, drills, roofbolters, etc.

Symptoms?
Identified symptoms include discomfort and reduced efficiency, tingling and numbness, attacks of finger blanching, decreased tactile sensitivity.

Can The Disorders Be Prevented? YES, by …

identifying offending equipment

monitoring the health of workers exposed to Hand-transmitted vibration

seeking medical advice as to the consequences of vibration exposures and screening out persons susceptible to WFB.

selecting tools with the least vibration

adequate tool maintenanance, operator training, adequate clothing,

reducing exposure time to vibration

incorporating vibration isolation devices and techniques, etc.

Are there Any Standards on Hand-Arm Vibration? YES, for example …

Australian Standard 2763-1988.

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