Gas dosimeter construction

Details Gas dosimeter construction Gas dosimeter construction

1984-05-31

1985-07-09

Spitzer, Robert

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422 59, 422 88, 422102, 422104, G01N 122

Patent

active

045281602

ABSTRACT:
A housing contains a diffusion indicator tube provided with a predetermined breaking point and the housing has an upper part and a lower part joined together by a film hinge. To open the inserted diffusion indicator tube its predetermined breaking point is positioned opposite the film hinge. By bending the housing parts, the break-off end breaks off the test tube at the predetermined breaking point, thereby opening the reaction section. The parts of the test tube are removed, and then the reaction section is pushed into the upper part, now with its closed end first, whereupon it is snapped into the lower part. Its opening at the bottom shoulder of the lower part is exposed to the ambient atmosphere which diffuses into it. In the presence of the gas to be monitored there will be discoloration due to reaction. The discoloration can be observed continuously through the open side of the holding means.

REFERENCES:
patent: 3474003 (1969-10-01), Hirsch
patent: 3507623 (1970-04-01), McConnaughey
patent: 3626762 (1971-12-01), Gilford
patent: 4159304 (1979-06-01), Shono
patent: 4389372 (1983-06-01), Lalin
patent: 4481297 (1984-11-01), Zucal et al.

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