An improved method for preparing gravimetric standard gas mixtures of helium-4 in nitrogen /
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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., Miss. #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. |
| Subjects: |