When.com Web Search

  1. Ads

    related to: coolant tester refractometer reviews problems pictures

Search results

  1. Results From The WOW.Com Content Network
  2. Refractometer - Wikipedia

    en.wikipedia.org/wiki/Refractometer

    There is also the Rayleigh Refractometer used (typically) for measuring the refractive indices of gases. In laboratory medicine, a refractometer is used to measure the total plasma protein in a blood sample and urine specific gravity in a urine sample. In drug diagnostics, a refractometer is used to measure the specific gravity of human urine.

  3. Antifreeze - Wikipedia

    en.wikipedia.org/wiki/Antifreeze

    Proper engine coolant and a pressurized coolant system obviate these shortcomings of water. With proper antifreeze, a wide temperature range can be tolerated by the engine coolant, such as −34 °F (−37 °C) to +265 °F (129 °C) for 50% (by volume) propylene glycol diluted with distilled water and a 15 psi pressurized coolant system.

  4. Refractometry - Wikipedia

    en.wikipedia.org/wiki/Refractometry

    A refractometer is the instrument used to measure refractive index ("RI"). Although refractometers are best known for measuring liquids, they are also used to measure gases and solids, such as glass and gemstones.

  5. Pensky–Martens closed-cup test - Wikipedia

    en.wikipedia.org/wiki/Pensky–Martens_closed-cup...

    This allows the development of an equilibrium between the liquid and the air volume. The ignition source is directed into the cup at regular intervals with simultaneous interruption of stirring. The test concludes upon observation of a flash that spreads throughout the inside of the cup. The corresponding temperature is the liquid's flash point.

  6. Digital handheld refractometer - Wikipedia

    en.wikipedia.org/wiki/Digital_handheld_refractometer

    A digital handheld refractometer is an instrument for measuring the refractive index of materials. Principle of operation Most ...

  7. Coolant - Wikipedia

    en.wikipedia.org/wiki/Coolant

    A coolant is a substance, typically liquid, that is used to reduce or regulate the temperature of a system. An ideal coolant has high thermal capacity, low viscosity, is low-cost, non-toxic, chemically inert and neither causes nor promotes corrosion of the cooling system. Some applications also require the coolant to be an electrical insulator.

  8. Abbe refractometer - Wikipedia

    en.wikipedia.org/wiki/Abbe_refractometer

    In the Abbe refractometer the liquid sample is sandwiched into a thin layer between an illuminating prism and a refracting prism. The refracting prism is made of a glass with a high refractive index (e.g., 1.75) and the refractometer is designed to be used with samples having a refractive index smaller than that of the refracting prism.

  9. Waterless coolant - Wikipedia

    en.wikipedia.org/wiki/Waterless_coolant

    Waterless coolant is most prominently used in the cooling systems for motorsports, classic car, ATVs, UTVs, snowmobiles and older cars. [4] Older cars often have non-pressurized cooling systems, and the water-based coolant can boil and overflow. Traditionally, this issue has been solved by topping off the radiator with water. This dilutes the ...