Oxygen tank

An oxygen tank is an oxygen storage vessel, which is either held under pressure in gas cylinders, or as liquid oxygen in a cryogenic storage tank.

Uses

Oxygen tanks are used to store gas for:

Breathing oxygen is delivered from the storage tank to users by use of the following methods: oxygen mask, nasal cannula, full face diving mask, diving helmet, demand valve, oxygen rebreather, built in breathing system (BIBS), oxygen tent, and hyperbaric oxygen chamber.

Contrary to popular belief scuba divers very rarely carry oxygen tanks. The vast majority of divers breathe air or nitrox stored in a diving cylinder. A small minority breathe trimix, heliox or other exotic gases. Some of these may carry pure oxygen for accelerated decompression or as a component of a rebreather. Some shallow divers, particularly naval divers, use oxygen rebreathers or have done so historically.

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. Medical use liquid oxygen airgas tanks are typically 350 psi (24 bar).

All equipment coming into contact with high pressure oxygen must be "oxygen clean" and "oxygen compatible", to reduce the risk of fire.[2][3] "Oxygen clean" means the removal of any substance that could act as a source of ignition. "Oxygen compatible" means that internal components must not burn readily or degrade easily in a high pressure oxygen environment.

In some countries there are legal and insurance requirements and restrictions on the use, storage and transport of pure oxygen. Oxygen tanks are normally stored in well-ventilated locations, far from potential sources of fire and concentrations of people.

gollark: Why would they not:- look at stuff from orbit beforehand, or send unmanned probes- have at least basic weaponry available for defense against possibly hostile native life- have waaaay better medical technology and/or environmental protection stuff, thus making the deinosuchi not very threatening
gollark: Oh, and they need good shielding against high-velocity particles, which might work okay against some weapons fire.
gollark: Any drive capable of bringing you up to ridiculous fractions of lightspeed will have a horribly dangerous exhaust, the power sources necessary could also run tons of weapons, and you can use said drive things to, I don't know, accelerate asteroids to high velocities and crash them into planets.
gollark: Ah, but their ships themselves would have to be weapons to travel interstellarly.
gollark: Technologically speaking.

See also

References
  1. "Breather". Spokane Daily Chronicle. (Washington). AP photo. November 13, 1948. p. 8.
  2. NAVSEA (2005). "Cleaning and gas analysis for diving applications handbook". NAVSEA Technical Manual. NAVAL SEA SYSTEMS COMMAND. SS521-AK-HBK-010. Retrieved 2008-09-05.
  3. Rosales, KR; Shoffstall, MS; Stoltzfus, JM (2007). "Guide for Oxygen Compatibility Assessments on Oxygen Components and Systems". NASA, Johnson Space Center Technical Report. NASA/TM-2007-213740. Retrieved 2008-09-05.
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