2013-07-01 12:00 - Messages

Current Practice in health surveillance for noise

The aims of this study were to provide an indication of the quality and range of current practice in the delivery of health surveillance for workers exposed to noise at work in Great Britain. The establishment of noise health surveillance was found to be conducted in a proactive manner with respondents demonstrating their knowledge of the importance and the value of risk assessment. Additionally, communication was seen as a vital component to the effectiveness and success of any noise health surveillance programme. Variations in practitioner training, background and the setting in which they work created the potential for differences in perspectives and practices that were reflected in the range of responses to questions in this study. This was seen at many levels throughout the assessment process, from pre-test checks, to undertaking audiometry, access to previous test data, categorisation and interpretation of results, frequency of audiometry
and the feedback provided to both employee and employer.

Source : http://www.hse.gov.uk/research/rrpdf/rr966.pdf

The effectiveness of BS EN ISO 28927-9:2009 concerning the vibration emission of scaling hammers and needle scalers

The work in this report provides HSE with information regarding: the likelihood that use of a tool's vibration emission value will result in minimised vibration exposures for the end user; and the limitations of the declared vibration emission value measured according to the standard test code, for use in a vibration exposure assessment.

Source : http://www.hse.gov.uk/research/rrpdf/rr967.pdf

An investigation into the effects of potential changes in concrete properties when aged and weathered on hand arm vibration emission magnitudes

During vibration emission measurements of hammers according to EN60745-2-6 (work published as RR868), variations in results were found which appeared to be related to the condition or age of the concrete test blocks following a 12-month period of outside storage. In one case, the emission value was reduced by 36%. For two of the three tools identified in RR868, the variation in vibration emission resulted in a change from the manufacturers' data not being verified to being verified in accordance with EN12096.
This work aimed to replicate the situation that gave rise to the results detailed RR868 and to identify variables that could account for any changes to the measured vibration emission. The investigation included monitoring the compressive strength of the concrete over time and under different storage conditions and a series of vibration emission measurements using a variety of hand held drills on the different concrete test blocks, when the blocks were newly cast and after a period of 14-months of storage and weathering.

Source :http://www.hse.gov.uk/research/rrpdf/rr965.pdf

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