BS ISO 2631-1:1997

1 Scope
2 Normative references
3 Definitions
4 Symbols and subscripts
5 Vibration measurement
6 Vibration evaluation
7 Health
8 Comfort and perception
9 Motion sickness
Annexes
Annex A (informative) - Mathematical definition of
        the frequency weightings
Annex B (informative) - Guide to the effects of
        vibration on health
Annex C (informative) - Guide to the effects of
        vibration on comfort and perception
Annex D (informative) - Guide to the effects of
        vibration on the incidence of motion sickness
Annex E (informative) - Bibliography

Gives methods for the measurement of periodic, random and transient whole-body vibration. Indicates the principal factors that combine to determine the degree to which a vibration exposure will be acceptable. Also provides the principles of preferred methods of mounting transducers for determining human exposure. 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 part of ISO2631 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

• 0,5Hz to 80Hz for health, comfort and perception, and

• 0,1Hz to 0,5Hz 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 ISO2631 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 ISO2631 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.