FIELD: gas testing. SUBSTANCE: device has control unit, gas line, selective and nonselective converters with holes for gas intake and release installed in gas line, pump for pumping gas through connected to co control unit, metering system and pneumatic-electric communication system. Metering system includes metering chamber connected to gas line and fitted with pressure transducer joined to control unit and shut-off valve mounted at outlet of gas line. Pneumatic-electric communication system has capability for connection to metering chamber and control unit of either selective converter or nonselective converter. Device also comprises thermal desorber carrying the heating element connected to control unit and duct for intake of products of thermal desorption communicating with holes of converters for gas intake. EFFECT: simplified design, increased operational reliability. 2 cl, 1 dwg
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