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4 results returnedA method for determining helium in water
Gravimetric preparation of primary standard gas mixtures in the parts per trillion range
Analysis for impurities in helium using the helium ionization detector
A method for the calibration of class 2 and class 4 standards of mass
Published Year
Subject
- Helium--Analysis (4) *
- Analytical chemistry--Quantitative (1)
- Chemistry, Analytic--Quantitative (1)
- Gas chromatography (1)
- Standards of mass--Calibration (1)
- Water--Analysis (1)
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