AbstractPreventive and constructional measures against gas and dust explosions.Even during the planning of plant for processing potentially explosive products, process and constructional aspects should be accompanied by investigations on the products conducted with a view to obtaining as complete a picture as possible of the danger of explosion of the materials. These studies provide the basis for estimates of explosive risks in the plant and for decisions concerning the extent to which safety measures against the occurrence of explosions or the effects of explosions can be implemented. An explosion‐proof plant can be accomplished by preventive measures hindering an explosion, or by constructional measures suppressing the effects of an explosion. This paper is intended to be of assistance in the choice of explosion‐proofing equipm