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ATEX risk management in flammable gas, vapour or dust extraction networks

Maîtrise des risques d'explosion d'atmosphères explosives (ATEX) dans les réseaux de captage à la source de gaz, vapeurs ou poussières inflammables

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Abstract

The survey of explosive atmospheres (ATEX) explosions in workplaces shows that flammable gas, vapour or dust extraction networks and their associated equipment are involved in a significant proportion of accidents, even though their primary function is to reduce the worker exposure either to hazardous substances or to the explosion risk. Indeed, by collecting flammable substances, an ATEX may occur in the extraction network, a separation device or a fan. Whether dust or gases or vapours are considered, the risk that an ATEX can occur in networks and related equipment can be evaluated and reduced. It is therefore necessary to take into account the physical phenomena involved in the ATEX formation and the physical and chemical characteristics of the products. Once this risk is assessed, it is possible to classify remaining hazardous areas according to regulatory definitions. Then, prevention measures and protection facilities must be implemented in order to avoid harmful effects on workers.
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Dates and versions

ineris-00971056 , version 1 (02-04-2014)

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Agnès Janes, Jacques Chaineaux. ATEX risk management in flammable gas, vapour or dust extraction networks. 10. International Conference on Industrial Ventilation, Sep 2012, Paris, France. ⟨ineris-00971056⟩

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