Assertion: oxygen | /r/HasProperty | held at pressure
Facets:
value: due to the risks of fire
type: CAUSE
value: rarely
type: DEGREE
Source sentences:
text: Oxygen is rarely held at pressures higher than 200 bars (3,000 psi), due to the risks of fire triggered by high temperatures caused by adiabatic heating when the gas changes pressure when moving from one vessel to another.