Transcript SME Initiative.- Achievements & Main Milestones

SME initiative
Thermal Vacuum Stability
ASTM E595 / SP-R-0022
• This test method is a screening
technique to determine the
volatile content of materials
when exposed to a vacuum
environment
• Three parameters are measured:
– TML: Total Mass Loss
– CVCM: Collected Volatile
Condensable Materials
– WVR: Water Vapor regained
May 2000
MAPTIS Presentation
46
SME initiative
Thermal Vacuum Stability
ASTM E595 / SP-R-0022
• Typical Specimen
– 100 to 300 mg as 1.5 to 3 mm cubes
– Organic, polymeric, and inorganic
materials
• Test Conditions
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125°C for 24 hours
at least 7x10-3 Pa vacuum
Collector at 25°C
Pre and post condition exposure to
23°C and 50% RH for 24 hours
• Acceptance Criteria
– TML of < 1%
– CVCM of < 0.1%
May 2000
MAPTIS Presentation
47