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ISO 2631-1

The international ISO 2631 Standard outlines methods for the measurement, evaluation and assessment of human exposure to Whole - Body Vibration (WBV). An evaluation of the effect of exposure to vibration on humans is performed by weighting the root-mean of acceleration data transmitted via supporting structures. Because the human response to vibration is a function of frequency, acceleration data is filtered with frequency weighting curves as specified by the standard to correlate the vibration measurements to a person's response to vibration. 

ISO 2631-1 

This part of ISO 2631 defines methods for the measurement of periodic, random and transient whole-body vibration. It indicates the principal factors that combine to determine the degree to which a vibration exposure will be acceptable. Informative annexes indicate current opinion and provide guidance on the possible effects of vibration on health, comfort and perception and motion sickness. The frequency range considered is 0,5 Hz to 80 Hz for health, comfort and perception, and 0,1 Hz to 0,5 Hz for motion sickness. Although the potential effects on human performance are not covered, most of the guidance on Whole-body vibration measurement also applies to this area. This part of ISO 2631 also defines the principles of preferred methods of mounting transducers for determining human exposure. It does not apply to the evaluation of extreme-magnitude single shocks such as occur in vehicle accidents. This part of ISO 2631 is applicable to motions transmitted to the human body as a whole through the supporting surfaces: the feet of a standing person, the buttocks, back and feet of a seated person or the supporting area of a recumbent person. This type of vibration is found in vehicles, in machinery, in buildings and in the vicinity of working machinery.


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