Occupational Exposure Limit for Hand-arm Vibration in Japan

摘要

The 8 hours energy equivalent value of 2.8 m/s~2 rms by frequency weighted vibration acceleration in three axes is recommended as the exposure limit for hand-arm vibration of the Japan Society for Occupational Health. The exposure limit is based on the relation between the prevalence of white finger (WF) and the magnitude of hand-arm vibration exposure among worker groups. When the magnitude of vibration exposure is under the recommended limit, the prevalence of WF is expected not to exceed that of the general population in Japan after 10 years' exposure.