Hand-Arm Vibration Calculator
Our Hand-Arm Vibration Calculator helps you quickly assess exposure levels and ensure compliance with HSE guidelines for worker safety.
Hand-Arm Vibration Calculator - Multi-Tool
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Tool Name | Vibration Magnitude (m/s²) | Exposure Duration (minutes) | Task Points per Hour | Time to Reach EAV | Time to Reach ELV | Partial Exposure A(8) (m/s²) | HSE Points |
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Total Vector Sum A(8) and HSE Points |
Can I use manufacturer data for my Hand-Arm Vibration Assessments?
In the UK, using manufacturer data for Hand-Arm Vibration (HAV) assessments can be a useful starting point, but it’s not enough on its own to ensure accurate assessments. Manufacturer data is typically based on idealised testing conditions, which may not fully reflect how the tool is used in real-life situations.
The Control of Vibration at Work Regulations 2005 require employers to assess and control the risks from vibration exposure in the workplace. To meet these requirements, you need to consider actual working conditions and measure vibration exposure on-site where possible. Manufacturer data should be supplemented with real-world measurements or more specific data.
What is the Exposure Action Value (EAV) for Hand-Arm Vibration?
The Exposure Action Value (EAV) for Hand-Arm Vibration (HAV) is a daily level of vibration exposure above which employers are legally required to take action to reduce the risks to workers’ health.
In the UK, the EAV for hand-arm vibration is set at:
- 2.5 m/s² A(8)
This means that if a worker’s daily vibration exposure reaches or exceeds 2.5 m/s² (measured over an 8-hour period), employers must take action.
What is the Exposure Limit Value (ELV) for Hand-Arm Vibration?
The Exposure Limit Value (ELV) for Hand-Arm Vibration (HAV) is the maximum amount of vibration an employee can be exposed to in a single day. Employers must ensure workers’ exposure does not exceed this level.
In the UK, the ELV for hand-arm vibration is:
- 5 m/s² A(8)
This means that a worker’s daily exposure to vibration, averaged over an 8-hour period, must not exceed 5 m/s². If exposure reaches this limit, employers must take immediate action to reduce vibration levels, as it represents a significant risk to health.
Exceeding the ELV is a breach of the Control of Vibration at Work Regulations 2005, and it is essential that employers monitor and manage vibration exposure to stay within this limit, protecting workers from conditions like Hand-Arm Vibration Syndrome (HAVS).
How often do I need to test my tools for vibration?
There is no strict legal requirement specifying exactly how often you must test your tools for vibration in the UK, but regular monitoring is crucial to ensure ongoing compliance with the Control of Vibration at Work Regulations 2005.
Here are some best practices for determining the frequency of vibration testing:
Initial Assessment: When introducing new tools or equipment, an initial vibration assessment is required to establish baseline vibration levels.
Regular Monitoring:
- For tools that are heavily used or are known to produce high levels of vibration, testing should be more frequent, possibly annually or every 6 months.
- For tools that are less frequently used or pose a lower vibration risk, longer intervals between tests may be acceptable (e.g. every 1–2 years).
After Servicing or Repair: If a tool has been repaired, serviced, or shows signs of wear and tear, it’s advisable to reassess the vibration levels to account for any changes in performance.
Changes in Use: If there is a change in how the tools are being used (e.g. different materials, work techniques, or new working conditions), you should reassess the vibration exposure.
Manufacturer Guidelines: Refer to manufacturer recommendations, as they may provide specific guidance on tool testing and maintenance.
By conducting regular vibration tests and monitoring usage conditions, you can help prevent excessive exposure, maintain tool safety, and comply with health and safety regulations.