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  2. Testing and inspection of diving cylinders - Wikipedia

    en.wikipedia.org/wiki/Testing_and_inspection_of...

    After a cylinder passes the test, the test date, (or the test expiry date in some countries such as Germany), is punched into the shoulder of the cylinder for easy verification at fill time. [note 1] The international standard for the stamp format is ISO 13769, Gas cylinders - Stamp marking. [1]

  3. Gas cylinder - Wikipedia

    en.wikipedia.org/wiki/Gas_cylinder

    A gas cylinder quad, also known as a gas cylinder bundle, is a group of high pressure cylinders mounted on a transport and storage frame. There are commonly 16 cylinders, each of about 50 litres capacity mounted upright in four rows of four, on a square base with a square plan frame with lifting points on top and may have fork-lift slots in the ...

  4. Group GT3 - Wikipedia

    en.wikipedia.org/wiki/Group_GT3

    A group of cars at the Snetterton Circuit, featuring three Group GT3 manufacturers. Group GT3, known technically as Cup Grand Touring Cars [1] and commonly referred to as simply GT3, is a set of regulations maintained by the Fédération Internationale de l'Automobile (FIA) for grand tourer racing cars designed for use in various auto racing series throughout the world.

  5. Standing loss - Wikipedia

    en.wikipedia.org/wiki/Standing_loss

    Standing loss, or standing losses, is a non-technical term to define energy losses in a system, usually associated with heat and hot water storage systems. It is the amount of energy lost through heat transfer to the surrounding environment; as such it is directly related to how well insulated a system is.

  6. Diving regulator - Wikipedia

    en.wikipedia.org/wiki/Diving_regulator

    A diving regulator or underwater diving regulator is a pressure regulator that controls the pressure of breathing gas for underwater diving.The most commonly recognised application is to reduce pressurized breathing gas to ambient pressure and deliver it to the diver, but there are also other types of gas pressure regulator used for diving applications.

  7. NASCAR rules and regulations - Wikipedia

    en.wikipedia.org/wiki/NASCAR_rules_and_regulations

    NASCAR logo. The National Association for Stock Car Auto Racing (NASCAR) makes and enforces numerous rules and regulations that transcend all racing series.. NASCAR issues a different rule book for each racing series; however, rule books are published exclusively for NASCAR members and are not made available to the public. [1]

  8. Reverse-flow cylinder head - Wikipedia

    en.wikipedia.org/wiki/Reverse-flow_cylinder_head

    The main advantage of the reverse-flow cylinder head is that both the entering inlet charge and the exiting exhaust gas cause a tendency to swirl in the same direction in the combustion chamber. [1] In a crossflow head the inlet and exhaust gases promote swirl in opposite directions so that during overlap the swirl changes directions.

  9. Fluting (firearms) - Wikipedia

    en.wikipedia.org/wiki/Fluting_(firearms)

    Fluted and non-fluted chamber in a blowback firearm Cutaway model of the chamber with gas relief flutes (left) and roller-delayed action of the G3 battle rifle. In the barrel chamber, fluting refers to gas relief flutes/grooves used to ease the extraction of cartridges. They may also come in annular and helical forms. [5]