This International Standard applies to periodic and to random or non-periodic vibration. Provisionally, this International Standard may also be applied to repeated shock type excitation.
This International Standard specifies general methods for measuring and reporting hand-transmitted vibration exposure in three orthogonal axes for the one-third octave bands, having
centre frequencies from 6,3 to 1 250 Hz, the octave bands, having centre frequencies from 8 to 1 000 Hz and a frequency-weighted measure which covers the frequency range from 5,6 to 1 400 Hz.
This International Standard, together with its annexes, provides guidance for the evaluation of hand-transmitted vibration specified in terms of a frequency-weighted vibration acceleration and daily exposure time. It does not define the limits of safe exposure.
The guidance proposed in this International Standard is derived from a consensus of opinion based upon data available from both practical experience and laboratory experimentation concerning human response to hand-transmitted vibration. It cannot be taken to define completely safe exposure ranges in which vibration diseases cannot occur.
This International Standard does not specify the risk factor of health impairment for different operational processes, tools and machmes.
To facilitate further progress in this field and to allow the quantitative comparison of exposure data, uniform methods for measuring and reporting exposure of human beings to handtransmitted vibration are desirable. Additional standards are to be considered for the vibration measurement of specific tools and processes.
DS/ENV 25 349:1993 history
1993DS/ENV 25 349:1993 Mechanical vibration - Guidelines for the measurement and the assessment of human exposure to hand-transmitted vibration