RI 6779 Method Of Analysis Of Impurities In Helium In The Parts-Per-Billion Range

The National Institute for Occupational Safety and Health (NIOSH)
G. W. Weems
Organization:
The National Institute for Occupational Safety and Health (NIOSH)
Pages:
8
File Size:
304 KB
Publication Date:
Jan 1, 1966

Abstract

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The Bureau of Mines combined preconcentrating techniques and mass spectrometry to develop a parts-per-billion general analysis of impurities in helium. The impurities are preconcentrated using a Bureau trace-impurity analyzer; 35-mm Hg pressure of helium is left in the concentration trap to sweep the impurities into the mass spectrometry and provide a 10-mm Hg sample pressure.
Citation

APA: G. W. Weems  (1966)  RI 6779 Method Of Analysis Of Impurities In Helium In The Parts-Per-Billion Range

MLA: G. W. Weems RI 6779 Method Of Analysis Of Impurities In Helium In The Parts-Per-Billion Range. The National Institute for Occupational Safety and Health (NIOSH), 1966.

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