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  2. Suicide bag - Wikipedia

    en.wikipedia.org/wiki/Suicide_bag

    In 2015 author and right-to-die advocate Derek Humphry reported that Worthington Industries, the world's largest manufacturer of disposable helium cylinders, had announced that their helium cylinders will guarantee only 80% helium, with up to 20% air, making them inappropriate for use with a suicide bag in Humphry's opinion. [23]

  3. Euthanasia device - Wikipedia

    en.wikipedia.org/wiki/Euthanasia_device

    Nitschke described his device as a modification of the exit bag with helium method described in The Peaceful Pill Handbook. Helium was replaced by a cylinder of compressed nitrogen and a regulator to supply the nitrogen into a plastic bag. One advantage of this method was the availability of larger amounts of nitrogen and flow rates last longer.

  4. Matheson (compressed gas & equipment) - Wikipedia

    en.wikipedia.org/wiki/Matheson_(compressed_gas...

    Matheson Tri-Gas, Inc. produces industrial, medical, and specialty gases, and associated gas handling equipment, in North America.MATHESON offers semiconductor, medical, welding, atmospheric gases, rare gases delivered via pipelines, onsite generators, bulk tanks, and in gas cylinders to customers using gases in their labs, semiconductor fabs, hospitals, chemical plants, manufacturing and many ...

  5. Gas blending for scuba diving - Wikipedia

    en.wikipedia.org/wiki/Gas_blending_for_scuba_diving

    All helium, and some of the oxygen is provided by decanting or boosting from bulk cylinders. The amount of helium that must be decanted is very simple to calculate: Multiply the desired gas fraction of helium (F He) by the total filling pressure (P tot) to get partial pressure of helium (P He). In the case of the Tx 20/40, in a 230 bar cylinder ...

  6. Lifting gas - Wikipedia

    en.wikipedia.org/wiki/Lifting_gas

    A major advantage is that this gas is noncombustible. But the use of helium has some disadvantages, too: The diffusion issue shared with hydrogen (though, as helium's molecular radius (138 pm) is smaller, it diffuses through more materials than hydrogen [4]). Helium is expensive. Although abundant in the universe, helium is very scarce on Earth.

  7. JIM suit - Wikipedia

    en.wikipedia.org/wiki/JIM_suit

    A JIM suit used by NOAA is recovered from the water. The JIM suit is an atmospheric diving suit (ADS), which is designed to maintain an interior pressure of one atmosphere despite exterior pressures, eliminating the majority of physiological dangers associated with deep diving.

  8. Kenya gas truck explosion torches Nairobi cylinder ... - AOL

    www.aol.com/news/fire-gas-explosion-kenyan...

    By Humphrey Malalo and Thomas Mukoya. NAIROBI (Reuters) -A gas truck exploded in Kenya's capital Nairobi, sending a huge fireball into the night sky and causing a blaze that killed at least three ...

  9. Humphrey pump - Wikipedia

    en.wikipedia.org/wiki/Humphrey_Pump

    A 36" cylinder bore Humphrey pump was installed at Chester, Pennsylvania in 1927 by the Sun Shipbuilding and Dry Dock Company. The pump was used in dry dock operations and also for experimental purposes. It was designed as a 2-stroke engine to operate in a range of head from 20 to 150 ft (6 to 46 m).