ASTM-E2900 › Historical Revision Information
Standard Practice for Spacecraft Hardware Thermal Vacuum Bakeout
The following bibliographic material is provided to assist you with your purchasing decision:
Scope
1.1 This practice establishes methods for thermal vacuum bakeout of spacecraft and spacecraft components.
1.2 This practice defines the equipment, environment, and certification criteria for each type of bakeout.
1.3 The methods defined in this practice are intended to reduce component outgassing rates to levels necessary to meet mission performance requirements of the contamination sensitive hardware. Times, temperatures, and configurations contained in this document have been found to provide satisfactory results. Experienced operators may find that other, similar times, temperatures and configurations have provided satisfactory results. If deviations from these criteria are deemed appropriate, they should be detailed in the bakeout report.
1.4 This practice describes three bakeout methods: Method A, using prescribed time and pressure criteria; Method B, using prescribed QCM stabilization rate criteria; and Method C, which measures the QCM deposition rate.
1.5 Determination of the acceptable molecular outgassing, selection of the bakeout method, and determination of the specific test completion criteria are the responsibility of the user organization.
1.6 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 and health practices and determine the applicability of regulatory limitations prior to use.
Keywords
contamination; contamination sensitivity; NVR; outgassing; outgassing rate; QCM; spacecraft testing; thermal vacuum testing; thermal vacuum bakeout; TQCM; vacuum bakeout; ICS Number Code 49.140 (Space systems and operations)
To find similar documents by ASTM Volume:
15.03 (Space Simulation; Aerospace and Aircraft; Composite Materials)
To find similar documents by classification:
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Document Number
ASTM-E2900-12
Revision Level
2012 EDITION
Status
Superseded
Modification Type
New
Publication Date
Dec. 1, 2012
Document Type
Practice
Page Count
10 pages
Committee Number
E21.05