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  2. National Board of Boiler and Pressure Vessel Inspectors

    en.wikipedia.org/wiki/National_Board_of_Boiler...

    Pressure-retaining items can be registered with the National Board, requiring certain uniform quality standards be achieved certifying the manufacturing, testing, and inspection process. To obtain a certification the registered items have to be inspected by National Board-commissioned inspectors and built to required standards.

  3. 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 ...

  4. Trinity Industries - Wikipedia

    en.wikipedia.org/wiki/Trinity_Industries

    At the time Trinity Steel manufactured butane tanks in a Dallas County mule barn. In 1958 Trinity Steel merged with Dallas Tank Company, which was also founded in 1933, and Ray Wallace became the new firm's president and first chief executive officer. At the time Trinity had revenues reaching $2.5 million and employed 200 workers.

  5. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    In the United States, federal licensure is generally handled by EPA certified (for installation and service of HVAC devices). Many U.S. states have licensing for boiler operation. Some of these are listed as follows: Arkansas [46] Georgia [47] Michigan [48] Minnesota [49] Montana [50] New Jersey [51] North Dakota [52] Ohio [53] Oklahoma [54 ...

  6. Gas cylinder - Wikipedia

    en.wikipedia.org/wiki/Gas_cylinder

    The term cylinder in this context is sometimes confused with tank, the latter being an open-top or vented container that stores liquids under gravity, though the term scuba tank is commonly used to refer to a compressed gas cylinder used for breathing gas supply to an underwater breathing apparatus.

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  8. EN 417 - Wikipedia

    en.wikipedia.org/wiki/EN_417

    Pierceable gas cylinder Gas cylinder with Lindal B188 valve.. EN 417 is a European Standard concerning non-refillable metallic cartridges for liquefied petroleum gases.The standard specifies material, construction, inspection and marking requirements for cartridges with or without a valve, for use with portable appliances which comply with the requirements of EN 521.

  9. Battelle Memorial Institute - Wikipedia

    en.wikipedia.org/wiki/Battelle_Memorial_Institute

    Battelle serves the following: Agribusiness: cannabis research, encapsulation, formulation, environmental fate, spray drift and droplet characterization; Ecology and environment: scientific data packages for researchers, air, water and soil analysis, assessment and remediation

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