Dräger Safety Ag&co. Kgaa

Armin Schulten

Andreas Mohrmann

Silke Guga

Holger Bohm

Bettina Runge

Michael Rosert

Benjamin Brandenburg

Katja Stern

Bernd Siemensmeyer

A device for gas analysis includes a detector tube () and can be used in the area of explosive or combustible gases. A filter material, which consists of a granular, porous material and has an impregnation for absorbing toxic gases, is provided between the detector tube () and a pump ().

Filtration system for gas analysis

An improved detection reaction for benzene in gas analysis with a gas detector tube formed of a carrier material impregnated with gold(III) oxide in a display layer.

Gas detector tube for determining benzene

A device and a method are provided for determining chlorine dioxide, especially in the presence of chlorine as a foreign gas. In the device the gas sample is exposed at first to a reagent for removing chlorine and subsequently to an indicator or to an electrochemical cell for the qualitative and/or quantitative determination of chlorine dioxide. The reagent for removing chlorine is or contains cyclohexylsulfamic acid and/or salts thereof. The device, through which flow can take place may be a test tube.

Device for determining chlorine dioxide and method

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 () for pyrolysis, there is a chemical layer () of pyrophoric iron, and as an indicator system for the pyrolysis product, a test tube () for hydrogen fluoride is used.

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Lübeck, Germany

Armin Schulten