Standard Practice for
Definition and Determination of Thermionic Constants of
This standard is issued below the fixed designation f eighty three; the wide variety immediately following the designation indicates the 12 months of unique
adoption or, within the case of revision, the yr of last revision. a number of in parentheses indicates the yr of remaining reapproval. a superscript
epsilon (e) shows an editorial trade because the final revision or reapproval.
click below to download Astm F 83 – 71 (Reapproved 2002) pdf free
click here to download Astm F 79 – 69 (Reapproved 2000) pdf free