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This study developed biomechanical models for hand breakaway strength that account for not only grip force but also hand-handle frictional coupling in generation of breakaway strength. Specifically, models for predicting breakaway strength for two commonly-used handle shapes (circular and rectangular handles) and varying coefficients of friction (COF) between the hand and handle were proposed. The models predict that (i) breakaway strength increases with increasing COF and (ii) a circular handle with a 50.8mm-diameter results in greater mean breakaway strength than a handle with a rectangular cross...
Load carriage increases physiological strain, reduces work capacity and elevates the risk of work-related injury. In this project, the separate and combined physiological consequences of wearing the personal protective equipment used by firefighters were evaluated. The overall impact upon performance was first measured in 20 subjects during a maximal, job-related obstacle course trial and an incremental treadmill test to exhaustion (with and without protective equipment). The fractional contributions of the thermal protective clothing, helmet, breathing apparatus and boots were then separately...
En réponse à une demande formulée par deux associations sectorielles paritaires et trois milieux de travail représentants les policiers, les agents de la paix en services correctionnels et les cols bleus, l'Institut de recherche Robert-Sauvé en santé et en sécurité du travail (IRSST) a mis au point une méthode d'essai pour déterminer la résistance des gants de protection contre les piqûres causées par les aiguilles médicales. L'absence de méthodes d'essai normalisées rendait...
Safety nets have become a common means of providing collective protection, particularly in construction, to mitigate the effects of falls where it is impractical to use temporary edge protection. The reason for carrying out the research was to explore issues where there was doubt/concern about the performance of safety nets and their attachments. This research evaluated the effectiveness of safety nets, as used in the UK, to identify the risk (if any) of premature failure, in less than ideal conditions that could occur in the use. A series of non-ideal loading conditions involving a range of variables...
Leading experts from the National Institute for Occupational Safety and Health (NIOSH) contribute to this month's special issue of the peer-reviewed journal Noise and Health on state-of-the-art research on hearing protection devices. The March-April issue of Noise and Health is available online at www.noiseandhealth.org . The articles present latest findings in areas where new research is vital for addressing challenges that practitioners, employers, and workers can face in choosing and using proper hearing protection. These include: •Proper fit testing of hearing protectors. •Determining...
This report describes work carried out as part of an inter-laboratory round-robin exercise to investigate the practicality and usefulness of a simultaneous multi-point in-suit sampling protocol for the assessment of inward leakage into air fed suits proposed for the revision of the relevant European Standard. HSL had concerns that this revised protocol would not produce the optimum level of information on suit performance, and would limit the highest levels of protection that could be measured. Source : http://www.hse.gov.uk/research/rrpdf/rr824.pdf
NIOSH investigators assessed sample units of the 3M Model 8000 FFRs received from the CDPH stockpile in order to check for any non-compliance with the NIOSH approval requirements for filtration efficiency and airflow (breathing) resistance. The goal was to determine if the respirators were manufactured in accordance with the NIOSH-approved quality assurance plan and had appropriate construction and workmanship. The investigation also evaluated respirator performance when fit tested on a panel of human test subjects representing a variety of facial dimensions. The evaluation revealed that the performance...
L'objectif de ce nouveau site Web est de fournir l'information nécessaire afin d'aider les individus et les responsables SST à identifier des gants de protection en adéquation avec leurs besoins. Source : http://www.irsst.qc.ca/gants/fr/index.html
This report sets out the findings from a qualitative study examining respiratory protective equipment (RPE) programmes across industry. Managerial decision-making was the focal point for this research given that decisions about RPE programmes rest with management. This cross-sector, exploratory study set out to address research on: what current RPE selection and use looks like; how this compare with 'good practice' and what factors influence choice and implementation of RPE programmes. Source : http://www.hse.gov.uk/research/rrhtm/rr798.htm
A new footwear samples table update to the report ‘HSL/2007/33 Further slip-resistance testing of footwear for use at work' is now available for download. The ongoing programme of testing has generated results for a further 20 footwear samples. Six of these are new in this most recent update. http://news.hse.gov.uk/2009/04/23/footwear-new-updated-testing-table/
The approach to any potentially hazardous environment, including one with biological hazards, must be made with a plan that includes an assessment of hazard and exposure potential, respiratory protection needs, dermal protection needs, entry conditions, exit routes, and decontamination strategies. Plans involving a biological hazard should be based on relevant infectious disease or biological safety recommendations by the Centers for Disease Control and Prevention (e.g., http://emergency.cdc.gov/bioterrorism ) and other expert bodies including emergency first responders, law enforcement, and public...