2013-08-01 12:00 - Messages

Gloves, Arc Flash, and the New ASTM Test Method

For years, we have heard the question, "What about gloves in arc flash?" The reason this question wasn't answered sooner is complicated, but the standard is now available. ASTM F2675-13, Test Method For Determining Arc Ratings of Hand Protective Products Developed and Used for Electrical Arc Flash Protection, is an ASTM International standard with an approval date of June 1, 2013, that was expected to be published by ASTM International within the month of July. Testing is already progressing, with more than 25 types of gloves tested in the past few years now having a specific standard to target.

Source : http://ohsonline.com/Articles/2013/08/01/Gloves-Arc-Flash-ASTM-Test-Method.aspx

The Use of Respirators to Reduce Inhalation of Airborne Biological Agents

Respiratory protection devices are an important element of an overall contagion control strategy when infectious biological aerosols are potentially present in an occupational environment. In health care facilities, N95 class FFR certified by the National Institute for Occupational Safety and Health (NIOSH) are typically the minimum class of respiratory protection recommended. In contrast, studies exist that suggest that surgical masks normally used in health care settings may be equally effective in reducing disease transmission. The “respirator versus surgical mask” debate continues in both health care and non-health care settings.
This article describes and evaluates the findings of recent studies examining the role of respirators and surgical masks in reducing disease transmission. Established principles of evaluating respiratory protective device performance are used to explain inconclusive results. This article also makes recommendations to maximize respiratory protection from biological aerosols.

Source : Janssen L, Ettinger H, Graham S, Shaffer R, Zhuang Z. J Occup Environ Hyg. 2013 Aug;10(8):D97-D103. http://dx.doi.org/10.1080/15459624.2013.799964.

Assessment of subjective and objective measurement systems of earplug attenuation on an individual - RR975

Systems that measure earplug attenuation for individual wearers are commercially available and the work detailed in this report aimed to assess the performance and test the reliability of two types of available system: objective measurement and subjective equal loudness. Systems were chosen to represent a type of system rather than a specific model of device and because they: were commercially available through leading manufacturers; were designed for use by operators with a minimal level of training or expertise; could be used with a range of earplugs; and were typical of the state of the art. Both systems investigated were found to have benefits and limitations. A number of recommendations are presented

Source : http://www.hse.gov.uk/research/rrpdf/rr975.pdf

Prémédia, un logiciel pour évaluer l'efficacité des appareils de protection respiratoire

Certains appareils de protection respiratoire (APR) sont équipés de cartouches absorbantes dont l'efficacité est limitée dans le temps. Cette durée de fonctionnement dépend du type de cartouche ainsi que des conditions dans lesquelles travaille l'utilisateur. Dans l'optique d'aider ce dernier à estimer le temps d'utilisation d'une cartouche, l'INRS a mis au point Prémédia, logiciel de calcul prédictif disponible gratuitement en ligne.

Source : https://premedia.inrs.fr/Premedia/jsp/Accueil.jsp

Access equipment for construction work at height in residential properties - RR978

The construction sector has a high rate of fatalities resulting from falls from height, especially among workers employed in small firms. The sector consists mainly of micro-small and medium-sized enterprises (SMEs) with a large number of self-employed and is peripatetic in its make-up, with employment often short-term and occurring within the informal economy. The aim of this project was to identify reasonably practical measures to reduce the number of deaths of workers in micro enterprises (MEs), and those who work as sole traders, in carrying out repairs at height on residential properties. Desk-based research was used to review the types of access equipment that are commercially available as well as to review the fall from heights statistics, and for a brief review of the literature on working at heights. A qualitative method involving semi-structured interviews and a thematic analysis was used to obtain perceptions and information on work practices from a sample of workers from micro enterprises and those who are self-employed and work as sole traders.

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