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ISO 8041-1 - Réponse des individus aux vibrations - Appareillage de mesure
Le présent document donne les spécifications de performances et les limites de tolérance pour les instruments destinés à mesurer les valeurs de vibration afin d'évaluer la réponse des individus aux vibrations. Il inclut les exigences relatives aux essais de conformité, ou à la validation, à la vérification périodique et aux contrôles in situ, ainsi que la spécification concernant les calibrateurs de vibration destinés aux contrôles in situ. Les instruments de mesure des vibrations spécifiés...
Comparative analysis of exposure limit values of vibrating hand-held tools
In the European Union, one of every four workers claims to be exposed to vibration for up to 2 h of his/her working day. The use of vibrating hand-held tools is the most common cause of vibration-related injury in workers. Of all sectors of professional activity, the construction industry has the highest number of workers affected by vibration. European Directive 2002/44/EC on the minimum health and safety requirements regarding worker exposure to risks from physical agents (e.g. vibration) limits exposure to vibration. This study analysed the exposure level of construction workers to hand-arm...
Quantitative neurosensory findings, symptoms and signs in young vibration exposed workers
Background: Long-term exposure to hand-held vibrating tools may cause the hand arm vibration syndrome (HAVS) including vibration induced white fingers and sensorineural symptoms. The aim was to study early neurosensory effects by quantitative vibrotactile and monofilament tests in young workers with hand-held vibration exposure. Methods: This cross-sectional study consisted of 142 young, male machine shop and construction workers with hand-held exposure to vibrating tools. They were compared with 41 non-vibration exposed subjects of the same age-group. All participants passed a structured interview...
Comparative analysis of exposure limit values of vibrating hand-held tools
In the European Union, one of every four workers claims to be exposed to vibration for up to 2 h of his/her working day. The use of vibrating hand-held tools is the most common cause of vibration-related injury in workers. Of all sectors of professional activity, the construction industry has the highest number of workers affected by vibration. European Directive 2002/44/EC on the minimum health and safety requirements regarding worker exposure to risks from physical agents (e.g. vibration) limits exposure to vibration.This study analysed the exposure level of construction workers to hand-arm vibration...
An ongoing challenge to increase workplace awareness and attention to the risks of vibration exposure
Although the risks associated with vibration exposure have been known for a long time, the importance of risk prevention has increased in Europe since the implementation of the Machine Directives in 1989 (1989/392/EC) and the Vibration Directive in 2002 (2002/44/CE). These Directives challenged manufacturers to design low-vibration tools, and employers to manage the site specific risks of vibration exposure. Field experience has shown that many companies using vibrating tools have never carried out a risk-management program, and that they continue to ignore their responsibilities in the Vibration...
Conduite des engins de chantier : comment réduire les vibrations ?
La conduite d’un engin de chantier est souvent synonyme de vibrations. Par l’intermédiaire du siège, le conducteur assis ressentira ces vibrations dans l’ensemble du corps. Pour le conducteur debout, c’est le plancher qui transmet ces vibrations. Subies de façon intensive et répétitive, ces vibrations peuvent générer des douleurs dans le dos. C’est ainsi que chaque année, près de 400 cas d’affections chroniques du rachis lombaire liés aux vibrations sont reconnus par la Sécurité...
Six-degrees-of-freedom measurement to select operator seats based on industry specific field vibration characteristics
The purpose of this paper was to quantify in (6DOF) whole-body vibrations during the daily operating tasks of 5 commonly used mobile machines types used in the steel making and metal smelting industries. Elevated values were observed at the chassis for crest factors, peak running root mean squared accelerations, and vibration total values, resulting in ISO 2631-1 (1997) comfort predictions ranging from Uncomfortable to Extremely Uncomfortable. Vibration dominant frequencies were generally between 1 and 8Hz. A second peak which occurred at approximately 27 Hz was observed for each vehicle in almost...
Implementation and Effectiveness of the European Directive Relating to Vibration in the Workplace
Safe Work Australia is currently examining the development of guidance and the feasibility of a model code of practice on controlling the risks of vibration at work. This report examines the requirements and effectiveness of the European Machinery Directive (2006/42/EC) and the Directive on Vibration (2002/44/EC) as implemented in the United Kingdom. It considers whether adoption of similar regulatory framework could be appropriate for Australia. It also provides a summary of the evidence for the health effects resulting from exposure to vibration and the identified gaps in vibration health effects...
Reliability of the anti-vibration (AV) glove test defined in ISO 10819 (1996)
The specific aims of this study are to examine the rationale behind the major revisions of the ISO standard of the anti-vibration (AV) glove test and to evaluate the major technical aspects of the revised method through an experiment. While this study failed to realize the constant-velocity spectrum proposed in the original revision, the glove vibration transmissibility values measured with a new spectrum proposed in the current study were very similar to those measured with the M and H spectra defined in the current standard, which suggests the new spectrum can greatly simplify the test without...
Peak values not appropriate for predicting the discomfort caused by transient vibration and experienced by standing people
For motions with high crest factors, the vibration discomfort of standing people tends to be underestimated by rms methods (with an exponent of 2) and overestimated by rmq methods (with an exponent of 4). The optimum evaluation method in this study with standing people exposed to fore-and-aft, lateral and vertical vibration had an exponent of about 3.0 for transient motions centred on 1 Hz and an exponent of about 3.5 for motions centred on 8 Hz. The findings of this study with standing people are broadly consistent with studies using different motions and different psychophysical methods with...
Employees affected by the vibrations of air chisels : The UK vehicule manufacturer was prosecuted.
Two employees in the weld destruct section where air chisels were used to undo welds on cars to test the strength of them developped Hand Arm Vibration Syndrome (HAVS) in December 2006. The subsequent investigation by HSE found that vibrating hand tools were being used across the plant with a lack of assessment and management of risk and when a health surveillance regime was then made effective, other cases came to light. There was no system in place to measure how long was being spent using the tools by each employee or the levels of vibration. The recommended amount of time for one of the tools...
United Kingdom: Council prosecuted after worker loses movement in hands.
Cheshire East Council was prosecuted by the Health and Safety Executive (HSE), United Kingdom, after a 56-year-old mechanic developed a severe form of hand arm vibration syndrome. Since 1984, the worker regularly used heavy-duty vibrating equipment, including pneumatic drills and hand-held grinders. The investigation inspector at HSE explained: "The worker was first diagnosed as developing hand arm vibration syndrome in 2005 but the council failed to take any significant action for nearly four years to stop the condition getting worse. The council should have limited the amount of time he...
The standard test defined for vibration emission values of drills must be improved for usability and reproducibility.
This report assesses the standard test defined in BS EN 60745-2-1:2003 (incorporating amendment no. 1 [2007]) for usability and reproducibility. Drills, impact drills and diamond core drills were used. Test specifications for drilling into metal and impact drilling into concrete were usable. However, the standard lacked clarity about how the machines should be used when diamond core drilling. The test code appears to have good usability but poor reproducibility for drilling into metal; good usability and good reproducibility for impact drilling into concrete; and poor usability and poor reproducibility...

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