An improved method for preparing gravimetric standard gas mixtures of helium-4 in nitrogen / by Nabil A. Bibawy and David E. Emerson.
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| Main Author: | |
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| Other Authors: | |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. (2401 E St., N.W., MS #9800, Washington 20241) :
U.S. Dept. of the Interior, Bureau of Mines,
1990.
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| Series: | Report of investigations (United States. Bureau of Mines) ;
9312. |
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| Item Description: | Distributed to depository libraries in microfiche. |
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| Physical Description: | 7 pages : illustrations ; 29 cm. |
| Bibliography: | Includes bibliographical references (page 7) |