Primary standards

Chemistry: physical processes – Physical processes – Crystallization

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G01N 100

Patent

active

039972968

ABSTRACT:
Apparatus is supplied for providing a primary standard of a gas by sealing in a container a material which is the source of the gas in predetermined amounts. Upon releasing the gas from the material, sample aliquots are removed and are passed into the analytical equipment being used in the subject testing.

REFERENCES:
patent: 1321062 (1919-11-01), Lamb et al.
patent: 3119670 (1964-01-01), Mitchell et al.
patent: 3847551 (1974-11-01), Hutson
Central Scientific Co., Catalog J-300, 1962, p. 127.
Aloe Scientific Co., Catalog 103, 1952, pp. 1010, 1011.
Vaska, L., Science 140, 809 (1963).

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