Hi, I was looking to get an understanding of what best practices are out there in relation to ensuring vibration magnitude data in relation to hand arm vibration is representative of use. My current employer is utilising the vibration magnitude data specified in the manufacturer's instructions. However, I am conscious that the HSE warn against solely relying on manufacturer's instructions. I was wondering if anyone is testing their tools and what their methodology is for testing tools including frequency. 

We have an open Management of Change on this to support with transition to a new methodology.

Thank you

Measuring Hav's can be quite challenging, ie maybe after using the HSE calculator and producing your EAV/ELV how will the operators really know when these levels have been reached?

I have previously used HAVI-Meters which are really only timers and do not measure vibration.

We have just moved to the Tri-axial accelerometer  method which actually measure "Sensed vibration" and comprehensive results can be downloaded and stored for future reference.