(EN) A detector and alarm for chemical agents in liq. droplet form comprises; a liq. droplet collector perpendicular to the falling droplet path comprising an air-permeable sheet which enhances the vaporisation of the droplets; a chamber fitted to the lower side of the sheet; and a conduit between the chamber and a smaple inlet prod.. The sheet pref. has uniform porosity and permeability and is held at above ambient temp. pref. by means of electrical filaments in the chamber.
Copyright 1997 KIPO
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