COVER STORY TO HAV AND TO HOLD
Here, Reactec presents the findings from two new papers on monitoring hand-arm vibration with HAVwear.
Could the difference between the assumed static vibration used in risk assessments and vibration emitted from real use of power tools be preventing further progress in reducing Hand-Arm Vibration Syndrome in affected populations?
In many countries, tool manufacturers are required to provide tool vibration magnitude based on specific test protocols identified within ISO 28927 which are unlikely to represent the tool’s use on a worksite. A point-in-time testing of a tool’s vibration magnitude at the worksite following ISO 5349-2 is also limited in identifying a representative tool vibration magnitude of real tool use. This is due to the constant variability in tool vibration magnitude from differences in operator technique and posture as well as tool application and condition.
In this paper we examine the extent to which on-site Hand Arm Vibration (HAV) daily exposure varies when assessed based on an assumed static vibration magnitude compared to one based on a realtime vibration magnitude determined on the tool user. The investigation shows that significant variances exist between HAV exposure calculated from assuming a static vibration dose and that determined from real use monitoring, indicating a potential for an increased risk of developing HAVS for exposed workers than expected.
Summary of paper data
246,500 4,031
OVER
A 9 MONTH PERIOD OF MONITORING ORGANISATIONS
400
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Analysis of the UK’s largest single data set of personal exposure risk.
OPERATOR DAYS ASSESSED ABOVE EAV CONSTRUCTION
(52,368 TOTAL DAYS)
OPERATOR DAYS MONITORED WITH
TOOL OPERATORS INCLUDED
STEEL FABRICATION (3,476 TOTAL DAYS)
(27,383 TOTAL DAYS)
LOCAL AUTHORITY (39,040 TOTAL DAYS) 12%
GROUNDS MAINTENANCE (34,613 TOTAL DAYS)
12% Static HAV Exposure Assessment Method 18% 15% Monitored HAV Exposure Assessment Method
(2,950 TOTAL DAYS) INDUSTRIAL
RAIL 21% 28% 35% 45% 23% 31% 53% 58%
Contact Reactec for an online meeting on how to identify your hidden risk. 0131 221 0930 or
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REPORT DOWNLOAD
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Download the report at
www.reactec.com/tool_exposure_data_research
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