Accession Number : AD0444499


Title :   PREPARATION OF ACCURATE TEST GAS MIXTURES


Corporate Author : GENERAL DYNAMICS/ASTRONAUTICS SAN DIEGO CA


Personal Author(s) : Bartle, E R ; Meckstroth, E A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/444499.pdf


Report Date : Jul 1964


Pagination or Media Count : 27


Abstract : Chemical kinetic studies of CO2 formation led to the requirement of preparing accurately known, prescribed test gas mixtures. Techniques were developed for the purifying reagent grade gas components to minimize undesirable impurities, the accurate determination of resulting mole concentrations and the ability to add small prescribed minor constituents to a test gas mixture. Concentrations may be determined with 1% using partial pressure measurements for C 7% and within 2% using gas chromatographic analysis for C 50 ppm. A series of test gas mixtures of argon diluted CO, O2 and H2 have been prepared and the concentrations found to be within 2% of that desired. Presently mixtures are being prepared where the H2 concentration will be held constant and equal to 110 ppm.


Descriptors :   *MIXTURES , *GASES , *CARBON DIOXIDE , IMPURITIES , HYDROGEN , OXYGEN , PURIFICATION , ARGON , LABORATORY EQUIPMENT , SHOCK TUBES , CHROMATOGRAPHIC ANALYSIS , CARBON COMPOUNDS , LOW PRESSURE , MONOXIDES , PREPARATION , REACTION KINETICS


Subject Categories : Physical Chemistry


Distribution Statement : APPROVED FOR PUBLIC RELEASE