Posted By Ali
I think what they mean is evidence of the vibration emissions rating, which the employer will be able to use to calculate the exposure values, although strictly speaking not all manufacturers ratings are accurate (except makita).

Posted By Bob Y
Makita among all manufacturers are accurate?!!!!

Posted By Phil Rose
Most manafacturers supply vibration data for their kit. Being slightly cynical I would suggest that much of the data is probably derived from testing that is done under 'ideal' conditions.

I went to a HAVS seminar a couple of years back run by EEF and the HSE. The HSE "vibration guru's" were there and they essentially said that the accurate measure of HAVs was very difficult, and that consecutive measurements of the same piece of kit with the same piece of kit could yield significantly different results each time.

I am not convinced that there is a wholly accurate way to measure vibration but we have to live with what we have.