A Method and Apparatus for Concentrating Trace Impurities in Analyzing Grade-A Helium

  • C. G. Kirkland
  • L. W. Brandt
  • W. M. Deaton
Conference paper
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 6)


Increasing demand for helium containing less than 50 ppm total impurities for missile and atomic energy applications requires reliable determination of the trace impurities in Grade-A helium,** The impurities should be identified and their concentrations should be known within a tolerance of 1 ppm.


Liquid Helium Total Impurity Trace Impurity Fixed Orifice Cryogenic Engineer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 1961

Authors and Affiliations

  • C. G. Kirkland
    • 1
  • L. W. Brandt
    • 1
  • W. M. Deaton
    • 1
  1. 1.U.S. Bureau of MinesAmarilloUSA

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