Vibration exposure from nail guns

For power tools such as grinders and sanders that operate continuously for periods of use it is fairly straightforward to understand and estimate the daily exposure time.

However, for a nail gun or stapler, the time that the power tool is operating each time it fires is only a fraction of a second, and the pattern of use can be intermittent with bursts of activity separated by long gaps, so knowing how to assess the actual exposure time is complex. The key to assessing exposure is to make sure that the measure of exposure time corresponds to the way that the vibration magnitude has been measured.