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What Is ATEX Directive 94/9/EC?
The ATEX Directive 94/9/EC is a directive adopted by the European Union (EU) to facilitate free trade in the EU by aligning the technical and legal requirements in the member states for products intended for use in potentially explosive atmospheres. CENELEC design standards are still used.
When Does the ATEX Directive Go Into Effect?
The ATEX Directive took effect on a voluntary basis on march 1, 1996.
Effective July 1, 2003, all products placed on the market or put into service in the EU for use in potentially explosive atmospheres must comply with the ATEX directive.
Products Covered by the ATEX Directive
This directive covers "Equipment" and "Protective Systems" which may be used in potentially explosive atmospheres created by the presence of flammable gases vapors, mists or dust. "Equipment" is any item which contains or constitutes a potential ignition source and which requires special measures to be incorporated in its design and/or its installation in order to prevent the ignition source from initiating an explosion in the surrounding atmospheres. Also included in the term "equipment" are safety or control devices installed outside of the hazardous area but having an explosion protection function. A wide range of products comes within the definition of equipment, including electric motors, compressors, diesel engines, lighting fittings, control and communication devices and monitoring and detection equipment. "Protective Systems" are items which prevent an explosion that has been initiated from spreading or causing damage. They included flame arrestors, quenching systems, pressure relief panels and fast-acting shut-off valves.
The directive excludes the following types of products:
- Medical devices
- Products for use in the presence of explosives
- Products for domestic use
- Personal protective equipment
- Sea-going vessels and mobile off-shore units
- Means of transport, except vehicles for use in potentially explosive atmospheres
- Military equipment
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