The hand-arm vibration exposure calculator
Our hand-arm vibration calculator can assist you in calculating exposures. Before using the calculator please read the information and guidance leaflet below.
How to use the calculator
- The calculator is a spreadsheet file (Microsoft Excel) which may be downloaded and saved on your computer.
- Click on the white areas and enter a representative vibration magnitude (in m/s2) and an exposure duration (in hours and/or minutes). You can do this for up to six different machines or processes. Information on tool types may be entered directly into the tools/process names columns, or selected from a drop-down list of common tools with HSE's recommended initial value.
- The following values will then be calculated and displayed in the yellow cells on the right:
- partial exposure (shown in both m/s2 A(8) and exposure points) for each tool or process, as calculated from the vibration magnitude and the exposure duration.
- daily exposure, also in m/s2 A(8) and exposure points, as calculated from the partial exposures.
- In addition to the partial and total exposure values, the calculator also uses the vibration magnitudes to produce the following values:
- exposure points per hour. The number of exposure points for every hour of exposure time for the individual machine or process.
- time to reach EAV (exposure action value). This is the total exposure time required for the individual machine or process, before the EAV (2.5 m/s2 A(8) or 100 points) is reached.
- time to reach ELV (exposure limit value). This is the total exposure time required for the individual machine or process, before the ELV (5 m/s2 A(8) or 400 points) is reached.
- The cells can be cleared for another calculation by clicking on the Reset Options in the bottom left-hand corner.