2012-12-01 12:00 - Messages

Gants en guayule, latex naturel solide et exempt de substances allergènes

Une recherche collective pilotée par le Cirad (Centre de coopération internationale en recherche agronomique pour le développement) à Montpellier a permis la réalisation de gants en guayule, latex naturel particulièrement solide et exempt de toutes substances allergènes. Les premiers prototypes de gants en latex de guayule ont été produits et caractérisés en Europe dans le cadre du projet EU-PEARLS du programme Européen du FP7. Ces gants en latex de guayule sont une solution pour apporter une réponse au problème de santé publique : allergie liée à l’utilisation de gants en latex d’Hévéa rencontré par le personnel médical et les malades. D’autant qu’ils ne peuvent pas utiliser des gants synthétiques aux propriétés mécaniques inférieures. Les premières analyses montrent que les propriétés des films de guayule sont proches de celles d’un latex d’hévéa. La moindre ou non-allergénicité du latex de guayule doit être vérifiée par des recherches additionnelles

Source : Du guayule de Montpellier pour des gants en latex ! CIRAD, Communiqué de presse, 24/09/2012.


No substitute for a properly conducted blind wear test

Comfort has rapidly become a key factor in the selection of flame resistant (FR) and arc-rated (AR) protective clothing In fact, recent research shows it is more important to wearers and specifiers than any single factor. The text reviews what is known about comfort and clears up several common misconceptions. Comfort cannot be reliably predicted by any single lab test of a fabric or by any series of different fabric tests, because comfort is inherently subjective; it is entirely a perception in the mind of the individual wearer and thus defies objective, quantified analysis. Weight and breathability are just two of a number of these characteristics; this makes intuitive sense when you consider the inherently subjective, individual, and dynamic nature of what makes someone feel "comfortable." Some of these characteristics are indefinable, others are not objectively measurable, and the complex interplay between so many variables multiplies the considerations exponentially. Comfort cannot be judged across a desk or from graphs and charts. It eludes simple quantification. There's only one reliable, proven method for predicting comfort of FR and AR clothing. There is simply no substitute for a properly conducted, objectively administered, blind wear test.

Source: Scott M. Margolin. Predicting Comfort of Flame Resistant Clothing. Occupational Health & Safety. June 2012.


Choosing glove materials and assessing permeation performance.

The most common causes of occupational dermatitis, according to the HSE — as reported by dermatologists and occupational physicians under The Health and Occupation Research Network (THOR) — are wet work (25% of total), soaps and cleaners (24%), rubber chemicals and materials (16%). Comfort and usability increase the likelihood of people wearing protection; manufacturers are always improving the anatomical design of their gloves. They are also working on levels of grip, for example by developing different surface finishes on the exterior of some gloves, such as dip rough, textured palm and crinkle finish. They produce reference charts to help select the right gloves based on accurate and detailed information about a huge range of chemicals, and illustrating appropriate breakthrough times for different materials. «Education and reinforcement are also crucial, says John Thorne as he talks comfort, protection and permeation performance from gloves».

Source: John Thorne, PPE: hand in glove. Health and safety at work, 04 October 2012.



Workers’ use of PPE is an indicator of safety climate

Job-appropriate personal protective equipment (PPE) is important for decreasing the high rates of occupational injury experienced by poultry processing workers. This analysis describes the job-appropriate PPE provided to poultry processing workers by their employers and the PPE used by these workers, and it delineates the association of work safety climate with job-appropriate PPE. Data are from a cross-sectional study of 403 Latino poultry processing workers in North Carolina. Most poultry processing workers are not provided with nor use job-appropriate PPE; however, more workers use PPE than are provided. The provision and use of PPE differs by employer. Work safety climate was associated with use of job-appropriate PPE. Poultry processing workers should be provided with job-appropriate PPE. Workers’ use of PPE is an indicator of safety climate. Further research about work safety climate and other work organization characteristics and job safety characteristics is needed.

Source: Arcury, Thomas A. et al Personal protective equipment and work safety climate among Latino poultry processing workers in Western North Carolina, USA. International Journal of Occupational and Environmental Health, Volume 18, Number 4, December 2012, pp. 320-328(9).


ASTM standards 2012- Protective Clothing

American Society for Testing and Materials. - ASTM standards on disc : standards worldwide 2012. Occupational Health and Safety—standard practices and guides look at the health and safety aspects of various working environments. Standards also cover hazard communications and the safe handling of metal working fluids. Protective Clothing—standards evaluate the performance of biological, chemical, physical, flame-resistant, and thermal protective clothing.

Source: Occupational Health and Safety; Protective Clothing.  ASTM, 2012, October, Volume 11.03.


Gripping control rather than just contact is critical for ladder climbing

This article asserts that the proper use of the three-point control ladder climbing strategy could prevent many of these ladder fall injuries and deaths. In addition to discussing principles of effective three-point control, the article reviews recommendations for design and process changes needed to better protect workers using ladders or stairs. The author maintains that three-point contact is an unsound means of positioning the body on a ladder or horizontal access route. To reasonably prevent uncontrolled falls, and prevent stepladder tipping, one hand must be able to grasp efficiently in a fall scenario by gripping a horizontal support using a power grip at all times. The strength used to achieve that grip does not have to be more than sufficient for the task at hand, but upon demand it should be able to maximize the breakaway force without difficulty. This is why a gripping control rather than just contact is critical.


Source: J. Nigel Ellis. Three-Point Control- Analysis & Recommendations for Climbing Ladders, Stairs & Step Bolts. ProfessionalSafety NOVEMBER 2012


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