Hand Arm Vibration Testing

We offer nationwide UK hand-arm vibration testing (HAV) and risk assessment services to identify exposure to vibrating tools, support compliance with the Control of Vibration at Work Regulations, and help prevent Hand-Arm Vibration Syndrome (HAVS). Our engineers measure tool vibration levels and assess trigger times to protect your workforce and your business.

Using state-of-the-art HAVS monitoring equipment, our experts are here to make your hand arm vibration testing easier. Our goal is to ensure that your business is compliant and that your workers are safe.

Please contact us to discuss your needs or to request a quote.

Technician preparing HAVs monitoring equipment

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What is Hand-Arm Vibration (HAV)?

Hand-arm vibration (HAV) occurs when power tools or machinery transmit vibrations to your hands and arms. This vibration can cause damage to nerves, blood vessels, muscles, and joints, leading to potential health problems such as hand-arm vibration syndrome and vibration white finger, a secondary form of Raynaud’s syndrome.

Need answers fast? Checkout the Hand Arm Vibration Testing FAQs

Need answers fast? Checkout the HAVs FAQs

Hand Arm Vibration Testing technician putting an accelerometer on a power tool

What are the Potential Health Risks?

Workers exposed to hand–arm vibration (HAV) often develop a range of serious health problems that can become permanent and debilitating if left unmanaged. These conditions develop gradually and reduce both comfort and productivity. Furthermore, anyone using vibrating tools or machinery faces an increased risk of developing these issues. Common problems include:

Hand–Arm Vibration Syndrome (HAVS)

This industrial disease causes multiple symptoms. For instance, tingling and numbness in the fingers make it difficult to grip or handle tools properly. Additionally, workers often lose hand strength and dexterity, which limits precision tasks. Moreover, vibration white finger causes painful finger discolouration, especially in cold environments. Finally, carpal tunnel syndrome triggers pain, numbness, and tingling in the hand and wrist.

Reduced Muscle Strength and Dexterity

Workers lose grip strength and coordination, making everyday activities such as lifting, tightening, or using tools more difficult.

Pain in the Hands and Arms

The discomfort ranges from mild irritation to severe pain and directly affects the ability to perform normal duties safely and efficiently.

Raynaud’s Phenomenon: This condition causes fingers and toes to turn white and numb in response to cold or emotional stress. Consequently, blood flow decreases, and manual dexterity suffers.

Arthritis: Long-term HAV exposure increases the risk of arthritis in the hands and wrists. As a result, mobility, strength, and comfort decline over time.

The Hand-arm vibration syndrome and assessment of vibration exposure independent report, presented to Parliament by the Secretary of State for Work and Pensions in July 2023, officially recognises these HAV-related health problems. The report highlights that HAVS and vibration exposure continue to present significant risks across multiple industries.

Fortunately, employers can prevent HAVS by acting early. When they schedule regular Hand Arm Vibration Testing and complete a detailed HAVS Risk Assessment, they identify exposure risks and implement effective control measures. In addition, proactive monitoring and testing help businesses maintain HSE compliance while protecting employees from preventable vibration-related illness.

Ultimately, employers who invest in workplace vibration monitoring, staff training, and HAVS prevention programmes create safer environments, reduce absenteeism, and demonstrate a genuine commitment to occupational safety and employee wellbeing.

Who is at Risk from HAVS?

Anyone regularly using vibrating tools or working in environments with constant vibration should be aware of the potential risks and take steps to minimise exposure.

According to the HSE, around 2 million people are at risk from HAVS. It is preventable, but once the damage is done, it is permanent. Synergy’s HAVS monitoring services will provide you with a HAVS assessment to lower the risk to your employees.

Employer’s Legal Obligations Regarding HAV (UK)

Employers in the UK have legal obligations under the Control of Vibration at Work Regulations 2005 (as amended) to protect their employees’ health and safety regarding HAV. Obligations such as:

Risk Assessment: HAVS risk assessments to assess the risk of employees being exposed to vibration exceeding legal limits.
Exposure Reduction: Taking action to minimise vibration exposure as far as reasonably practicable, such as choosing low-vibration tools, adapting work practices, and providing personal protective equipment (PPE).
Employee Training: Providing information and training to employees about HAV risks and safe work practices.
Health Monitoring: Monitor employees’ health if they are exposed to vibration above certain levels.
Record-Keeping: Maintaining records of HAVS risk assessments, vibration exposure measurements, and health monitoring data.

Angle grinder that would cause hand arm vibration

How is Vibration Monitoring Conducted?

Vibration monitoring can be done by objective testing using specialised devices and subjective testing through questionnaires. Objective testing is preferred for its accuracy and reliability in vibration monitoring. However, subjective testing can be a handy supplement, especially when objective testing isn’t feasible due to cost or practicality.

1. Subjective testing:

This involves asking workers to rate the intensity and duration of the vibration they feel. It’s less precise than objective testing but can be a helpful screening tool. Think of it as a questionnaire where workers describe the vibration they experience, this is subjective vibration testing.

2. Objective Testing:

Objective vibration testing uses a specialised device called an accelerometer to measure vibration directly. The accelerometer is a tiny sensor attached to the tool handle, recording the shakes and tremors. These instruments typically measure:

• Acceleration: How intense the vibration is.
• Frequency: The vibration magnitude, how fast the tool vibrates.
• Duration: The length of time someone is exposed to the vibration.

Remember: Regardless of the testing method, the goal is to identify potential HAV risks and take steps to reduce exposure, like using low-vibration tools, taking breaks, and wearing padded gloves. By being mindful and taking precautions, you can help protect your workforce’s hands and arms from HAV’s harmful effects and ensure your business is compliant with regulations.

Hand Arm Vibration Testing and Assessment

Understanding a HAVS Assessment

Interpreting HAVS assessment results involves considering various factors and regulations outlined in the Control of Vibration at Work Regulations 2005 and additional guidance¹ from organisations like the Health and Safety Executive (HSE). This includes:

Comparing results to exposure limits:

Vibration levels are compared to exposure action values (EAVs) and exposure limit values (ELVs) specified in the regulations.

1. EAV (2.5 m/s² or 100 HSE points):
  
  This is the action point. If workers reach this daily exposure level using vibrating tools, employers must take action to control the risk, even if it does not exceed the limit. This includes implementing risk assessments, providing information and training to workers, and introducing control measures like low-vibration tools, vibration-damping gloves, and work practice changes.
2. ELV (5 m/s² or 400 HSE points):
  
  This is the legal limit. Exceeding this daily exposure level is prohibited, and immediate action must be taken to reduce exposure below the limit. This might involve stopping work with the specific tool or equipment, further investigating control measures, and possibly providing health surveillance for affected workers.

Evaluating individual susceptibility:

Age, health conditions, and previous injuries can also influence susceptibility to HAVS.
Assessing work practices and tool maintenance:

These factors can also impact actual exposure levels.
Implementing control measures:

If exposure exceeds EAVs, employers must implement controls such as tool selection, work practice modifications, PPE provision, or workplace redesign. Exceeding ELVs requires immediate action to eliminate or substantially reduce exposure.

1 – HSE HAVS Guide

2 – HSE HAVS Calculator Guide

Take Action with hand arm vibration testing

Investing in a comprehensive Hand Arm Vibration Assessment demonstrates your commitment to employee well-being and legal compliance. It also reduces the risk of HAVS, improves employee well-being, and fosters a healthier and more productive workforce.

Our team of dedicated Occupational Hygiene Consultants can help you remain compliant and ensure the safety and health of your workforce. We are fully certified and have worked with some of the UK’s largest companies to carry out Hand Arm Vibration Testing.

Please get in touch to discuss your hand arm vibration testing and assessment needs or to request a quote.

01782 614236 Email us

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