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calibration gas

См. также в других словарях:

  • Gas chromatography — A gas chromatograph with a headspace sampler Acronym GLC, GC Classification chromatography Analytes organic inorganic …   Wikipedia

  • Gas pycnometer — A gas pycnometer, a type of pycnometer, is a laboratory device used for measuring the density or more accurately the volume of solids, be they regularly shaped, porous or non porous, monolithic, powdered, granular or in some way comminuted,… …   Wikipedia

  • Gas porosity — Determining the true porosity of a gas filled formation has always been a problem. While gas is a hydrocarbon, similar to oil, the physical properties of the fluids are very different, making it very hard to correctly quantify the total amount of …   Wikipedia

  • Calibration curve — In analytical chemistry, a calibration curve is a general method for determining the concentration of a substance in an unknown sample by comparing the unknown to a set of standard samples of known concentration.The calibration curve is a plot of …   Wikipedia

  • Gas-liquid chromatography — Infobox chemical analysis name = Gas liquid chromatography caption =A gas chromatograph with a headspace sampler acronym = GLC, GC classification =chromatography analytes = organic inorganic must be volatile manufacturers = Agilent (a spin off of …   Wikipedia

  • Measurement microphone calibration — In order to take a scientific measurement with a microphone, its precise sensitivity must be known (in volts per Pascal). Since this may change over the lifetime of the device, it is necessary to regularly calibrate measurement microphones. This… …   Wikipedia

  • Electrochemical gas sensor — Electrochemical gas sensors are gas detectors that measure the volume of a target gas by oxidizing or reducing the target gas at an electrode and measuring the resulting current. ConstructionThe sensors contain two or three electrodes,… …   Wikipedia

  • Greenhouse gas — Simple diagram of greenhouse effect. A greenhouse gas (sometimes abbreviated GHG) is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect.[1] …   Wikipedia

  • Inert gas — Inert gases is also used in a narrower sense for noble gases. An inert gas is any gas that is not reactive with elements.Like the noble gases an inert gas is not necessarily elemental and are often molecular gases. Like the noble gases the… …   Wikipedia

  • Matheson (compressed gas & equipment) — Matheson Type incorporated subsidiary Industry Chemicals Founded 1927 (as Matheson Gas Products) Headquarters Basking Ridge, NJ, USA (HQ) …   Wikipedia

  • Tracer-gas leak testing method — As part of the recommended leak testing methods for nondestructive testing several tracer gas leak testing ones exist among which the methods of choice are: * Helium mass spectrometer or helium leak detection, providing the highest sensitivity *… …   Wikipedia

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