Mechanical Specification

Molecular Contamination


Domain(s)
Space
System(s)
Satellite
Specialty
MECH
Profile(s)
CH, COMM, EXP, PS, RP, SMAC
Specification Type
Recommendation
Citation(s)
ASTM E595_2007

For all components that will be in the vicinity of an optical payload and anywhere that contamination at the molecular level is an issue, all parts and materials must comply with ASTM E 595 for less than 1% Total Mass Loss (TML) and 0.1% CVCM.

Thermal bake-out of all components shall be completed at 80C, and for 24 hours after the pressure is at 1×10-6 torr or less.


ASTM E595_2007

"Standard Test Method for Total Mass Loss and Collected Volatile Condensable Materials from Outgassing in a Vacuum Environment". ASTM E595, 15.03, ASTM International, West Conshohocken, PA, 2007, Standard Test Method for Total Mass Loss and Collected Volatile Condensable Materials from Outgassing in a Vacuum Environment.