Acute effects ofvibrationfrom chipping hammer and grinder ...
chipping hammer and a grinder with notably different vibration characteristics: different types ofvibration (impact vibration from the chipping hammer and harmonic vibration from the grinder), and different fundamental frequencies (50Hz and 137Hz, respectively, fig 1). Both exposures had a frequency weighted acceleration of 8 m/s2 according to ISO5349. Thetwotools were .