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- Hydrogen_leak_testing abstract "Hydrogen leak testing is the normal way in which a hydrogen pressure vessel or installation is checked for leaks or flaws. There are various tests.The Hydrostatic test, The vessel is filled with a nearly incompressible liquid - usually water or oil - and examined for leaks or permanent changes in shape. The test pressure is always considerably more than the operating pressure to give a margin for safety, typically 150% of the operating pressure.The Burst test, The vessel is filled with a gas and tested for leaks. The test pressure is always considerably more than the operating pressure to give a margin for safety, typically 200% or more of the operating pressure.The Helium leak test, The leak detection method uses helium (the lightest inert gas) as a tracer gas and detects it in concentrations as small as one part in 10 million. The helium is selected primarily because it penetrates small leaks readily. Usually a vacuum inside the object is created with an external pump connected to the instrument. Alternatively helium can be injected inside the product while the product itself is enclosed in a vacuum chamber connected to the instrument. In this case Burst and leakage tests can be combined in one operation. The Hydrogen sensor, The object is filled with a mixture of 5% hydrogen/ 95% nitrogen, (below 5.7% hydrogen is non-flammable (ISO-10156). This is called typically a sniffing test. The handprobe connected to the microelectronic hydrogen sensors is used to check the object. An audiosignal increases in proximity of a leak. Detection of leaks go down to 5x10-7 cubic centimeters per second [1]. Compared to the helium test: hydrogen is cheaper than helium, no need for a vacuum, the instrument could be cheaper.".
- Hydrogen_leak_testing wikiPageExternalLink mst6_5_s31.pdf.
- Hydrogen_leak_testing wikiPageExternalLink hydrogen-sensor.
- Hydrogen_leak_testing wikiPageExternalLink hydrogen-leak-detector-7689-258533.html.
- Hydrogen_leak_testing wikiPageExternalLink www.leakpedia.com.
- Hydrogen_leak_testing wikiPageExternalLink SingleArticle~ContentId~11957~pub~IA.html.
- Hydrogen_leak_testing wikiPageExternalLink hydrogensensor.html.
- Hydrogen_leak_testing wikiPageID "6302572".
- Hydrogen_leak_testing wikiPageRevisionID "585022026".
- Hydrogen_leak_testing hasPhotoCollection Hydrogen_leak_testing.
- Hydrogen_leak_testing subject Category:Hydrogen.
- Hydrogen_leak_testing subject Category:Hydrogen_technologies.
- Hydrogen_leak_testing subject Category:Nondestructive_testing.
- Hydrogen_leak_testing subject Category:Tests.
- Hydrogen_leak_testing type Abstraction100002137.
- Hydrogen_leak_testing type Act100030358.
- Hydrogen_leak_testing type Activity100407535.
- Hydrogen_leak_testing type Application100949134.
- Hydrogen_leak_testing type Cognition100023271.
- Hydrogen_leak_testing type Event100029378.
- Hydrogen_leak_testing type Experiment105798043.
- Hydrogen_leak_testing type HigherCognitiveProcess105770664.
- Hydrogen_leak_testing type HydrogenTechnologies.
- Hydrogen_leak_testing type Inquiry105797597.
- Hydrogen_leak_testing type Occupation100582388.
- Hydrogen_leak_testing type ProblemSolving105796750.
- Hydrogen_leak_testing type Process105701363.
- Hydrogen_leak_testing type Profession100609953.
- Hydrogen_leak_testing type PsychologicalFeature100023100.
- Hydrogen_leak_testing type Technology100949619.
- Hydrogen_leak_testing type Tests.
- Hydrogen_leak_testing type Thinking105770926.
- Hydrogen_leak_testing type Trial105799212.
- Hydrogen_leak_testing type Use100947128.
- Hydrogen_leak_testing type YagoPermanentlyLocatedEntity.
- Hydrogen_leak_testing comment "Hydrogen leak testing is the normal way in which a hydrogen pressure vessel or installation is checked for leaks or flaws. There are various tests.The Hydrostatic test, The vessel is filled with a nearly incompressible liquid - usually water or oil - and examined for leaks or permanent changes in shape.".
- Hydrogen_leak_testing label "Hydrogen leak testing".
- Hydrogen_leak_testing label "Wasserstoffdetektor".
- Hydrogen_leak_testing sameAs Wasserstoffdetektor.
- Hydrogen_leak_testing sameAs m.0g03m8.
- Hydrogen_leak_testing sameAs Q386462.
- Hydrogen_leak_testing sameAs Q386462.
- Hydrogen_leak_testing sameAs Hydrogen_leak_testing.
- Hydrogen_leak_testing wasDerivedFrom Hydrogen_leak_testing?oldid=585022026.
- Hydrogen_leak_testing isPrimaryTopicOf Hydrogen_leak_testing.