Cardoso, Arnaldo Alves [UNESP]Locateli, Ana Flávia [UNESP]Carloni Filho, João [UNESP]Franco, Reinaldo [UNESP]2022-04-282022-04-281996-12-01Ecletica Quimica, v. 21, n. 0, p. 111-117, 1996.0100-4670http://hdl.handle.net/11449/224605A dynamic system for stablishing a known standard gas mixture is necessary for many studies such as development and testing of analytical methods. A permeation tube can be used for this purpose. The work described here shows the construction, operation and calibration of a simple permeation tube which can be used to obtain large amounts of a standard gas.111-117porPermeation tubeStandard gas analysisStandard gas generationTest atmospheresArtigo2-s2.0-2542531614