2013-05-01 12:00 - Messages

Optimisation of the mechanical slip resistance test for footwear used in EN ISO 13287:2007 - Follow on study

The measurement of the slip resistance of footwear is inherently difficult due to the complexity of the human gait, which leads to changing values of the biomechanical parameters during the walking step. Only some steps result in a slipping heel, which compounds the difficulty in identifying the values of the parameters that need to be simulated. A number of studies have attempted to measure the parameters of walking and/or a slip, in order that realistic values can be incorporated into tests attempting to replicate the slip process.

Source : http://www.hse.gov.uk/research/rrpdf/rr951.pdf

Understanding the breathing gas capacities (ratings) of escape respirators for mineworker use

The following information will help workers understand the meaning of breathing gas capacity of a jointly approved National Institute for Occupational Safety and Health (NIOSH) and Mine Safety and Health Administration (MSHA) closed-circuit escape respirator (CCER). Understanding the uses and limitations of the CCER is important in planning for an escape during a mine emergency.

Source : http://www.cdc.gov/niosh/docs/2013-148/pdfs/2013-148.pdf


Douches d'urgence : douches oculaires et douches corporelles

Selon l’article 75 du Règlement sur la santé et la sécurité du travail (RSST), l’installation de douches corporelles et de douches oculaires est requise lorsqu’un travailleur manipule :
• une matière corrosive ou dangereuse susceptible de causer rapidement des dommages graves ou irréversibles à la peau ou aux yeux ;
• une matière toxique susceptible d’être absorbée par la peau ou les yeux ou de causer des irritations sévères.

Voir également : Fiche d'inspection hebdomadaire - Grille de conformité
Source : http://www.asstsas.qc.ca/publications/fiches-techniques/fiches-laboratoire/laboratoire-douches-durgence-ftl9.html

Research to improve extension ladder angular positioning

A leading cause for extension ladder fall incidents is a slide-out event usually related to suboptimal ladder inclination. An improved ladder positioning method or procedure could reduce the risk of ladder stability failure and the related fall injury. The objective of the study was to comparatively evaluate the effectiveness of a multimodal angle indicator with other existing methods for extension ladder angular positioning. Twenty experienced and 20 inexperienced ladder users participated in the study. Four ladder positioning methods were tested in a controlled laboratory environment with 4.88 m (16 ft) and 7.32 m (24 ft) ladders in extended and retracted positions. The positioning methods included a no-instruction method, the current standard anthropometric method, and two instrumental methods – a bubble level indicator, and a multimodal indicator providing direct feedback with visual and sound signals. Performance measures included positioning angle and time[..]

Source : P. Simeonov, H. Hsiao, J. Powers, I.-J. Kim, T.-Y. Kau, D. Weaver. Research to improve extension ladder angular positioning. Applied Ergonomics, vol. 44, no 3, May 2013, p. 496–502. http://dx.doi.org/10.1016/j.apergo.2012.10.017

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