Smallest mass changes can be determined and accelerated tests can be carried out. By online mass spectroscopy with a quadrupole the species of the outgassing or evaporated particles can be analysed. 

Different test procedures are available:

1. Dynamic test: The temperature is increased with constant rate until heavy mass loss is gained.
2. Static test: Temperature is increased as fast as possible to a certain level and then held constant, until a constant sublimation rate is gained.
3. Kinetic outgassing test: Stepwise increase of temperature: In steps of e.g. 25°C the temperature is increased and held constant for e.g. 24hours for long-term TML prediction (ECSS-Q-TM-70-52A)
4. Vapour pressure test: The vapour pressure of an outgassing material is calculated using Langmuir’s equations and Clausius Clapeyron equation.

Measurement of mass in thermal vacuum of material samples is done according to the customers temperature profile. Optional a TQCM (thermal quartz crystal microbalance) with IRRAS (infrared reflection absorption spectroscopy) of the trapped material can be attached. Tests according to ECSS-Q-TM-70-52A (longterm outgassing prediction) can be done.

Testoutput:

• mass loss in vacuum over time
• mass loss in vacuum over temperature
• residual gas analysis (RGA)
• optional: frequency of TQCM
• optional: IRRAS of trapped material on TQCM

Advanced outgassing measurements are done at AAC since the 1990s, when AAC was part of the Austrian Institute of Technology. Since then, the facility has been upgraded regularly to meet the rising needs of accuracy. Over the last decades AAC has gained a lot of experience in outgassing testing and improved the measurement methods.

AAC is audited according to ISO 9001.

Tests according to kinetic outgassing of materials for space (ECSS-Q-TM-70-52A) can be done. 

AAC headquarter is located in Austria, close to Vienna.