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The ATEX directive consists of two EU directives describing what equipment and work environment is allowed in an environment with an explosive atmosphere. EC directive: Appareils destinés à être utilisés en ATmosphères EXplosibles. Mark for ATEX certified electrical equipment for explosive atmospheres.
As of July 2003, organizations in EU must follow the directives to protect employees from explosion risk in areas with an explosive atmosphere. EC, Minimum requirements for improving the safety and health protection of workers potentially at risk from explosive atmospheres. EU that is dedicated to the manufacturer has changed. EC will be removed and replaced by a new directive.
EU will be mandatory for manufacturer on 20 April 2016 as is stated in article 44 of the directive. EC of the European Parliament and of the Council of 9 July 2008 on a common framework for the marketing of products, in Brussels, 21. EC directive, the requirement is that Employers must classify areas where hazardous explosive atmospheres may occur into zones.
The classification given to a particular zone, and its size and location, depends on the likelihood of an explosive atmosphere occurring and its persistence if it does. Equipment and protective systems intended to be used in zoned areas must meet the requirements of the directive. Zone 0 and 20 require Category 1 marked equipment, zone 1 and 21 require Category 2 marked equipment and zone 2 and 22 require Category 3 marked equipment.