A heat treatment device for the conversion of gaseous test samples into constituents determinable by a detector provides the possibility of obtaining the desired pyrolysis products even during the sampling, then feeding them directly to the detector. The device has a small structural shape, and is able to be carried and used easily and operated independently of an external energy supply. The heat treatment device is connectable to a number of different detectors. A container 1 through which the test gas can flow is provided with a chemical filler 5, 7, 8 capable of an exothermic reaction, and with a starter 4 initiating the reaction.
A device for detecting sulfuryl fluoride, in which the gas specimen to be examined is subjected to pyrolysis with ensuing detection of a pyrolysis product, is to be improved for the sake of achieving a mobile, economical structure. To attain this object, in a preliminary tube (1) for pyrolysis, there is a chemical layer (5) of pyrophoric iron, and as an indicator system for the pyrolysis product, a test tube (2) for hydrogen fluoride is used.
A device is disclosed for generating a high intensity localized heat. The device comprises a conduit defining a channel with a catalyst disposed near the end of the channel. The channel carries a gaseous mixture to the catalyst where the mixture reacts in the presence of the catalyst and generates heat.
The present invention relates to a device for conditioning a soil or rock sample polluted by hydrocarbons. It also allows conditioning of pure polluting products. The device comprises a receptacle (1) containing a soil or rock sample (3), and an adsorbent material (4a, 4b) for adsorbing hydrocarbons or derivatives. The soil, rock or pollutant sample is preferably surrounded by two adsorbent layers. The invention also relates to a method of analysis by pyrolysis of a soil or rock sample polluted by hydrocarbons wherein the device according to the invention is used.
