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2 results returnedA method for the calibration of class 2 and class 4 standards of mass
An improved method for preparing gravimetric standard gas mixtures of helium-4 in nitrogen
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Subject
- Gases (1)
- Helium (1)
- Helium--Analysis (1)
- Mixing (1)
- Nitrogen (1)
- Standards of mass--Calibration (1)
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