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  • ASTM
    E2900-12 Standard Practice for Spacecraft Hardware Thermal Vacuum Bakeout
    Edition: 2012
    $93.60
    Unlimited Users per year

Description of ASTM-E2900 2012

ASTM E2900-12

Historical Standard: Standard Practice for Spacecraft Hardware Thermal Vacuum Bakeout




ASTM E2900

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 Code

ICS Number Code 49.140 (Space systems and operations)


DOI: 10.1520/E2900-12

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About ASTM

ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide.

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