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  2. Confined space - Wikipedia

    en.wikipedia.org/wiki/Confined_space

    A confined space is a space with limited entry ... Confined space training outlines the skills and ... oxygen concentration is considered safe if it is between 19.5% ...

  3. Immediately dangerous to life or health - Wikipedia

    en.wikipedia.org/wiki/Immediately_dangerous_to...

    The OSHA definition is arguably broad enough to include oxygen-deficient circumstances in the absence of "airborne contaminants", as well as many other chemical, thermal, or pneumatic hazards to life or health (e.g., pure helium, super-cooled or super-heated air, hyperbaric or hypo-baric or submerged chambers, etc.).

  4. Oxygen compatibility - Wikipedia

    en.wikipedia.org/wiki/Oxygen_compatibility

    In an oxygen system the presence of oxygen is implied, and in a sufficiently high partial pressure of oxygen, most materials can be considered fuel. Potential ignition sources are present in almost all oxygen systems, but fire hazards can be mitigated by controlling the risk factors associated with the oxygen, fuel, or heat, which can limit the ...

  5. Asphyxiant gas - Wikipedia

    en.wikipedia.org/wiki/Asphyxiant_gas

    Only where elevated concentrations of asphyxiant gases displace the normal oxygen concentration does a hazard exist. Examples are: Environmental gas displacement Confined spaces, combined with accidental gas leaks, such as mines, [1] submarines, [2] [3] refrigerators, [4] or other confined spaces [5]

  6. Confined space rescue - Wikipedia

    en.wikipedia.org/wiki/Confined_space_rescue

    Confined space rescue is a subset of technical rescue operations that involves the rescue and recovery of victims trapped in a confined space or in a place only accessible through confined spaces, such as underground vaults, storage silos, storage tanks, or sewers. A warning label on a storage tank, indicating that it is a confined space.

  7. Life-support system - Wikipedia

    en.wikipedia.org/wiki/Life-support_system

    The life support system provides a nitrogen/oxygen atmosphere at sea level partial pressures. The atmosphere is then regenerated through KO2 cylinders, which absorb most of the CO2 and water produced by the crew biologically and regenerates the oxygen, the LiOH cylinders then absorb the leftover CO2.

  8. Hypoxic air technology for fire prevention - Wikipedia

    en.wikipedia.org/wiki/Hypoxic_air_technology_for...

    Sensors continuously measure the levels of oxygen. These sensors provide real-time data to the control system, ensuring that the oxygen level is reduced to a safe level for fire prevention without compromising human safety. Distribution Network: This network delivers nitrogen-enriched air into the protected environment(s).

  9. Potable water diving - Wikipedia

    en.wikipedia.org/wiki/Potable_water_diving

    Diving teams may require confined space training and working at heights certification and must follow the appropriate standards or code of practice for this work. [1] The diver should wear a diving harness, connected to a safety rope, so that in case of an emergency the dive tender can pull the diver up.

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