Exposure Points System Explained

Exposure action value (EAV) and exposure limit value (ELV)

What is the exposure action value?

The exposure action value (EAV) is a daily amount of vibration exposure above which employers are required to take action to control exposure. The greater the exposure level, the greater the risk and the more action employers will need to take to reduce the risk. For hand-arm vibration the EAV is a daily exposure of 2.5 m/s2 A(8).

What is the exposure limit value?

The exposure limit value (ELV) is the maximum amount of vibration an employee may be exposed to on any single day. For hand-arm vibration the ELV is a daily exposure of 5 m/s2 A(8). It represents a high risk above which employees should not be exposed.

The Regulations allow a transitional period for the limit value until July 2010. This only applies to work equipment already in use before July 2007. The exposure limit value may be exceeded during the transitional period as long as you have complied with all the other requirements of the Regulations and taken all reasonably practicable actions to reduce exposure as much as you can.

Figure 1: How vibration level and duration affect exposure.

Testimonial:

BAM Nuttall - Roy Jackson, Senior Safety Advisor

“BAM Nuttall has always tried to stay on top of the issue of HAVS and ensure the safety of our workforce. In the past, we were trying to accurately estimate the amount of vibration that staff were exposed to ourselves, but this was a lengthy and time-consuming process and we knew that we needed a better system. “When we first introduced HAVmeters two years ago, we saw them as the best option to use to stay ahead of the game on vibration safety. The devices give us a valuable monitoring system that makes sure we know who is working with what machinery and for how long - and provides us with accurate, detailed records of what our teams are exposed to. “We now use HAVmeters in every project where our staff operate vibrating equipment and it is easily the best system on the market for monitoring HAV exposure. By using this equipment, we ensure that we not only keep our workforce safe from injury but also have a robust defence in place to protect ourselves from liability when it comes to vibration issues.”