scope:

This guideline describes the state of the art pursuant to the legal definitions of § 3 (6) of the BImSchG in conjunction with the addendum to § 3 (6) of the BImSchG and of § 3 (10) of the Gefahrstoffverordnung. As far as these texts are concerned, the state of the art is that state of development of progressive techniques, equipment and modes of operation which makes the practical suitability of measures for controlling emissions and for protecting occupational health appear certain. In determining the state of the art, particular consideration shall be given to comparable techniques, equipment and modes of operation which have been successfully tested in practical application. The guidelines are applied to measures for explosion protection in dust extraction installations where, during specified normal use, combustible dust/air mixtures, vapour/air mixtures or hybrid mixtures occur or may be formed.