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Résistance des garde-corps en bois fixés sur des structures neuves et comportement sous charges de garde-corps métalliques fixés sur des structures existantes
Malgré les réglementations nationales et internationales qui exigent de protéger les travailleurs exposés à un risque de chute, les chutes de hauteur restent l'une des principales causes de décès pour les travailleurs de la construction. Elles sont la deuxième cause d'accidents en ce qui a trait aux coûts (397 millions de dollars par an sur la période 2010-2012) et représentent 16,1 % des décès au travail en 2017. Les garde-corps temporaires sont un moyen efficace de protection contre les chutes de...
Assessment of the effectiveness of modular clothing protecting against the cold based on physiological tests
At many workstations in a cold environment, protective clothing provided for the workers is characterized by inadequate thermal insulation, which results in an adverse impact of the cold environment on the worker's body. The purpose of this article is to present developed new ergonomic modular cold protective clothing, which allows for easy adaptation of the thermal insulation of clothing to a worker's individual needs. This clothing was compared in a laboratory study with the clothing having so far been used by workers in a cold environment using physiological and physical measurements...
Evaluation of surgical glove integrity and factors associated with glove defect
Background: Surgical glove perforation may expose both patients and staff members to severe complications. This study aimed to determine surgical glove perforation rate and the factors associated with glove defect. Material and methods: This descriptive cross-sectional study was conducted between January and March 2017 at a Tunisian university hospital center in 3 different surgical departments: urology, maxillofacial, and general and digestive. The gloves were collected and tested to detect perforations using the water-leak test as described in European Norm NF EN 455-1. For percentage comparisons...
Reliability of N95 respirators for respiratory protection before, during, and after nursing procedures
Background: The adequate fit of an N95 respirator is important for health care workers to reduce the transmission of airborne infectious diseases in the clinical setting. This study aimed to evaluate whether adequately sealed N95 respirators may provide consistent protection for the wearer while performing nursing procedures. Methods: Participants were a group of nursing students (N = 120). The best fitting respirator for these participants was identified from the 3 common models, 1860, 1860S, and 1870+ (3M), using the quantitative fit test (QNFT) method. Participants performed nursing...
Mesure de l’efficacité des gants de protection contre les nanoparticules dans des conditions simulant leur utilisation en milieu de travail
Cette étude s'est articulée autour de trois grandes parties correspondant aux objectifs définis en début de projet. Tout d'abord, il a permis de concevoir un banc d'essai pouvant appliquer des déformations triaxiales dynamiques sur les gants de protection, simulant leur utilisation en milieu de travail. En parallèle, un protocole d'échantillonnage rigoureux a été développé afin de minimiser les contaminations éventuelles. Les mesures des concentrations en nanoparticules dans la solution d'échantillonnage...
Prediction methods of skin burn for performance evaluation of thermal protective clothing
Most test methods use skin burn prediction to evaluate the thermal protective performance of clothing. In this paper, we reviewed different burn prediction methods used in clothing evaluation. The empirical criterion and the mathematical model were analyzed in detail as well as their relationship and limitations. Using an empirical criterion, the onset of skin burn is determined by the accumulated skin surface energy in certain periods. On the other hand, the mathematical model, which indicates denatured collagen, is more complex, which involves a heat transfer model and a burn model. Further studies...

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