Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition
Patent
1996-04-04
1998-03-10
Pyon, Harold Y.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
422 72, 422 99, 422100, 422101, 422104, 128760, 128762, 604403, B01L 314
Patent
active
057258325
ABSTRACT:
The present invention concerns laboratory test tubes for the dosing of liquids. Connected to the opening of the test tube is an inner tube, which is shorter than the test tube. Between the test tube and the inner tube is an intermediate space of a constant retention volume. The intermediate space preferably has a width of between 0.5 mm and 1 mm. Also disclosed is a method of using the laboratory test tubes of the present invention for the resuspension of sediments obtained by centrifuging.
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