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2. DHL Balloon - Wikipedia

   en.wikipedia.org/wiki/DHL_Balloon

   The DHL Balloon was first located on Tan Quee Lan Street in the Downtown Core of Singapore, near the New 7th Storey Hotel and Bugis MRT station. [1] [2] Launched at a cost of $2.5 million, the DHL Balloon was a joint venture by Aerophile Balloon Singapore Pte Ltd and Vertical Adventure Pte Ltd, and took one year to plan. [1]

3. Gas blending for scuba diving - Wikipedia

   en.wikipedia.org/wiki/Gas_blending_for_scuba_diving

   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, this would be 230 bar x 40% = 92 bar (or for a 3,000 psi fill, it would require 3,000 x 40% ...

4. Worthington Enterprises - Wikipedia

   en.wikipedia.org/wiki/Worthington_Enterprises

   Worthington Enterprises, Inc. is a global diversified metals manufacturing company based in Columbus, Ohio.It is a steel processor and manufacturer of pressure vessels, such as propane, oxygen and helium tanks, hand torches, refrigerant and industrial cylinders, camping cylinders, exploration, recovery and production products for global energy markets; water system tanks for storage, treatment ...

5. 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 ...

6. Strange Connecticut laws, such as receiving a $99 fine for ...

   www.aol.com/strange-connecticut-laws-receiving...

   The law prevents the release of ten or more "helium or lighter-than-air gas balloons" into the atmosphere during a 24-hour period. Though the release of balloons may seem harmless, ...

7. Trimix (breathing gas) - Wikipedia

   en.wikipedia.org/wiki/Trimix_(breathing_gas)

   Partial pressure blending is done by decanting oxygen and helium into the diving cylinder and then topping up the mix with air from a diving air compressor. To ensure an accurate mix, after each helium and oxygen transfer, the mix is allowed to cool, its pressure is measured and further gas is decanted until the correct pressure is achieved ...

8. 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]

9. Helium storage and conservation - Wikipedia

   en.wikipedia.org/wiki/Helium_storage_and...

   Helium storage and conservation is a process of maintaining supplies of helium and preventing wasteful loss. Helium is commercially produced as a byproduct of natural gas extraction. Until the mid-1990s, the United States Bureau of Mines operated a large scale helium storage facility to support government requirements for helium.