Explore: Outgassing (low Pressure Environments)

high-vacuum environments. NASA and ESA maintain lists of materials with low-outgassing properties suitable for use in spacecraft, as outgassing products

interruption, this provides effective protection upon exposure to low-barometric pressure environments. However, breathing pure oxygen during flight alone (ascent

falls below this vapour pressure. Outgassing has the same effect as a leak and will limit the achievable vacuum. Outgassing products may condense on

Vacuum grease is a lubricant with low volatility and is used for applications in low pressure environments. Lubricants with higher volatility would evaporate

hydrogen sponge) create special outgassing problems. Outgassing from surfaces is a subtler problem. At extremely low pressures, more gas molecules are adsorbed

significantly over time, affected by many factors such as volcanism, outgassing, impact events, weathering and the evolution of life (particularly the

Materials for use in vacuum are materials that show very low rates of outgassing in vacuum and, where applicable, are tolerant to bake-out temperatures

(depending on specific composites), having very low outgassing compared to other fluids (vapour pressure of 6×10−8 Torr) and having a dielectric strength

atmosphere during its primordial epoch, either by accretion of matter or by outgassing of volatiles. The chemical interaction of the atmosphere with the solid

to maintain pressure are needed. Airliners operate with low internal relative humidity, often under 20%, especially on long flights. The low humidity is