This new style European directive covers equipment and protective systems that may be used in areas endangered by potentially explosive atmospheres created by the presence of flammable gases, vapours, mists or dusts.
Further details are available from the links below:
Understanding ATEX (PDF 42K)
Mike Nash from IML explains some of the key issues
Useful on- line version of this journal from IML Group
www.newapproach.org/directiveList.asp
www.eotc.be/newapproach/EC_Guide/index.htm