Assertion: oxygen's pressure | /r/CapableOf | exceed 1.4 bar
Facets:
Source sentences:
text: Diving below 56 m (184 ft) on air would expose a diver to increasing danger of oxygen toxicity as the partial pressure of oxygen exceeds 1.4 bar (140 kPa), so a gas mixture must be used which contains less than 21% oxygen (a hypoxic mixture).