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Homepage>ASTM Standards>ASTM F0083-71R18 - Standard Practice for Definition and Determination of Thermionic Constants of Electron Emitters
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Released: 2018-04-10

ASTM F0083-71R18

Standard Practice for Definition and Determination of Thermionic Constants of Electron Emitters

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Language:English
Released:2018-04-10
Pages:6
Standards number:ASTM F0083-71R18
Standard number:F0083-71R18
Released:01.03.2018
Status:Active
Pages:6
Section:10.04
Keywords:electron emitters; electron tube materials; thermionic constants; work function ;
DESCRIPTION

1.1 This practice covers the definition and interpretation of the commonly used thermionic constants of electron emitters (1, 2, 3),2 with appended standard methods of measurement.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.