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  2. Tygon tubing - Wikipedia

    en.wikipedia.org/wiki/Tygon_Tubing

    Tygon 2275 High Purity Tubing is a plasticizer-free material that is often used in sterile filling and dispensing systems and diagnostic equipment. This formulation is also considered to have low absorption / adsorption properties, which minimizes the risk of fluid alteration.

  3. List of thermal conductivities - Wikipedia

    en.wikipedia.org/wiki/List_of_thermal_conductivities

    ≈Typical Air [31] Air in motor windings at normal pressure, Lasance approximations 360 Kelvins 10 −2 meters: 0.03039 10 −3 meters: 0.03038 10 −4 meters: 0.03031 10 −5 meters: 0.02959 List, TPRC Vol 3 page 512. [24] [28] 360 An investigator has reported some high values for the thermal conductivity of some metal air laminates both ...

  4. Primary standard - Wikipedia

    en.wikipedia.org/wiki/Primary_standard

    High equivalent weight (to minimize weighing errors) [3] Long lasting molar solution i.e. concentration remains unchanged for long periods of time; Non-toxicity; Ready and cheap availability (The last two are not as essential as the first four.) Some examples of primary standards for titration of solutions, based on their high purity, are ...

  5. Cryogenic gas plant - Wikipedia

    en.wikipedia.org/wiki/Cryogenic_gas_plant

    A cryogenic gas plant is an industrial facility that creates molecular oxygen, molecular nitrogen, argon, krypton, helium, and xenon at relatively high purity. [1] As air is made up of nitrogen, the most common gas in the atmosphere, at 78%, with oxygen at 19%, and argon at 1%, with trace gasses making up the rest, cryogenic gas plants separate air inside a distillation column at cryogenic ...

  6. Air-free technique - Wikipedia

    en.wikipedia.org/wiki/Air-free_technique

    Air- and water-free solvents are also necessary. If high-purity solvents are available in nitrogen-purged Winchesters, they can be brought directly into the glovebox. For use with Schlenk technique, they can be quickly poured into Schlenk flasks charged with molecular sieves, and degassed. More typically, solvent is dispensed directly from a ...

  7. Air separation - Wikipedia

    en.wikipedia.org/wiki/Air_separation

    Pure gases can be separated from air by first cooling it until it liquefies, then selectively distilling the components at their various boiling temperatures. The process can produce high purity gases but is energy-intensive. This process was pioneered by Carl von Linde in the early 20th century and is still used today to produce high purity ...

  8. AN/ARC-190 - Wikipedia

    en.wikipedia.org/wiki/AN/ARC-190

    The ARC-190 is a military HF radio that operates between 2-30 MHz and transmits at 300+ watts.It features a dual heterodyne receiver/transmitter that uses IF frequencies of 97.8 and 1.8 MHz, an antenna coupler that is pressurized to 7±1 PSI with dry nitrogen (air) which (1) prevents high voltage arcing, (2) prevents corrosion, (3) provides a uniform cooling medium, and one of various controls ...

  9. High Pressure Pure Air Generator - Wikipedia

    en.wikipedia.org/wiki/High_Pressure_Pure_Air...

    High Pressure Pure Air Generator (HiPPAG®) is a registered trade mark belonging to Ultra Electronics for a type of Pure Air Generating System (PAGS). [2] HiPPAG® is an integrated pure air compressor and filtration system, which continuously consumes atmospheric air during flight or on the ground, and then provides high pressure pure air to cryogenically cool the infrared detector in missile ...