Standard Historical Last Updated: Aug 16, 2017 Track Document
ASTM E296-70(1999)

Standard Practice for Ionization Gage Application to Space Simulators

Standard Practice for Ionization Gage Application to Space Simulators E0296-70R99 ASTM|E0296-70R99|en-US Standard Practice for Ionization Gage Application to Space Simulators Standard new BOS Vol. 15.03 Committee E21
$ 83.00 In stock

Scope

1.1 The purpose of this practice is to provide application criteria, definitions, and supplemental information to assist the user in obtaining meaningful vacuum ionization gage measurements below 10 N/m (10 torr) in space-simulation facilities. Since a variety of influences can alter observed vacuum measurements, means of identifying and assessing potential problem areas receive considerable attention. This practice must be considered informational, for it is impossible to specify a means of applying the vacuum-measuring equipment to guarantee accuracy of the observed vacuum measurement. Therefore, the user's judgment is essential so that if a problem area is identified, suitable steps can be taken to either minimize the effect, correct the observed readings as appropriate, or note the possible error in the observation.

1.2 While much of the discussion is concerned with the application of hot-cathode ionization gages, no exclusion is made of cold-cathode designs. Since a great deal more experience with hot-cathode gages is available and hot-cathode devices are used in the majority of applications, the present emphasis is fully warranted.

1.3 The values stated in inch-pound units are to be regarded as the standard. The metric equivalents of inch-pound units may be approximate.

Price:
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Book of Standards Volume: 15.03
Developed by Subcommittee: E21.04
Pages: 13
DOI: 10.1520/E0296-70R99
ICS Code: 49.140