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  2. Hydrostatic head - Wikipedia

    en.wikipedia.org/wiki/Hydrostatic_head

    Hydrostatic head is also used as a measure of the waterproofing of a fabric, commonly in clothing and equipment used for outdoor recreation.It is measured as a length (typically millimetres), representing the maximum height of a vertical column of water that could be placed on top of the fabric before water started seeping through the weave.

  3. Hydrostatic test - Wikipedia

    en.wikipedia.org/wiki/Hydrostatic_test

    This type of test is suitable for containers such as boat fuel tanks, which are not pressure vessels but must work under the hydrostatic pressure of the contents. A hydrostatic test head is usually specified as a height above the tank top. The tank is pressurised by filling water to the specified height through a temporary standpipe if necessary.

  4. Marine diesel oil - Wikipedia

    en.wikipedia.org/wiki/Marine_diesel_oil

    MDO is widely used by medium speed and medium/high speed marine diesel engines. It is also used in the larger low speed and medium speed propulsion engine which normally burn residual fuel. [1] Those fuels result from a catalytic cracking and visbreaking refinery. [1] Marine diesel oil has been condemned for its nimiety of sulfur, so many ...

  5. Well kill - Wikipedia

    en.wikipedia.org/wiki/Well_kill

    It works on the principle that the hydrostatic head of the "kill fluid" or "kill mud" will be enough to suppress the pressure of the formation fluids. Well kills may be planned in the case of advanced interventions such as workovers, or be contingency operations. The situation calling for a well kill will dictate the method taken.

  6. Waterproofing - Wikipedia

    en.wikipedia.org/wiki/Waterproofing

    A water-resistant garment is similar, perhaps slightly more resistant to water but also not rated to resist a specific hydrostatic head. A garment described as waterproof will have a water-repellent coating, with the seams also taped to prevent water ingress there. Better waterproof garments have a membrane lining designed to keep water out but ...

  7. Nikwax Analogy - Wikipedia

    en.wikipedia.org/wiki/Nikwax_Analogy

    Unlike most "waterproof breathable" fabrics, Analogy can pass out liquid water as well as vapour. Unlike a conventional waterproof fabric, Analogy would fail a hydrostatic head test (if used to seal the bottom of a tube containing water, only a very short column could be supported). However, like fur, Analogy causes water to flow away from the ...

  8. AOL Mail

    mail.aol.com/d?reason=invalid_cred

    AOL Mail is free and helps keep you safe. From security to personalization, AOL Mail helps manage your digital life Start for free

  9. Ballast tank - Wikipedia

    en.wikipedia.org/wiki/Ballast_tank

    Cross section of a vessel with a single ballast tank at the bottom. A ballast tank is a compartment within a boat, ship or other floating structure that holds water, which is used as ballast to provide hydrostatic stability for a vessel, to reduce or control buoyancy, as in a submarine, to correct trim or list, to provide a more even load distribution along the hull to reduce structural ...