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  2. Viscosity index - Wikipedia

    en.wikipedia.org/wiki/Viscosity_index

    That is, the two oils with viscosity Y at 100 °C and a VI of 0 and 100 would have at 40 °C the viscosities of L and H respectively. These L and H values can be found in tables in ASTM D2270 [4] and are incorporated in online calculators. [5]

  3. List of viscosities - Wikipedia

    en.wikipedia.org/wiki/List_of_viscosities

    The viscosity of an aqueous solution can either increase or decrease with concentration depending on the solute and the range of concentration. For instance, the table below shows that viscosity increases monotonically with concentration for sodium chloride and calcium chloride , but decreases for potassium iodide and cesium chloride (the ...

  4. Viscosity - Wikipedia

    en.wikipedia.org/wiki/Viscosity

    The following table illustrates the range of viscosity values observed in common substances. Unless otherwise noted, a temperature of 25 °C and a pressure of 1 atmosphere are assumed. The values listed are representative estimates only, as they do not account for measurement uncertainties, variability in material definitions, or non-Newtonian ...

  5. Dimensionless numbers in fluid mechanics - Wikipedia

    en.wikipedia.org/wiki/Dimensionless_numbers_in...

    Dimensionless numbers (or characteristic numbers) have an important role in analyzing the behavior of fluids and their flow as well as in other transport phenomena. [1] They include the Reynolds and the Mach numbers, which describe as ratios the relative magnitude of fluid and physical system characteristics, such as density, viscosity, speed of sound, and flow speed.

  6. Isopropyl alcohol (data page) - Wikipedia

    en.wikipedia.org/wiki/Isopropyl_alcohol_(data_page)

    Toggle the table of contents. Isopropyl alcohol (data page) ... Index of refraction, n D: ... Viscosity [1] 4.5646 mPa·s at 0°C

  7. Naphthenic oil - Wikipedia

    en.wikipedia.org/wiki/Naphthenic_oil

    Viscosity index (ASTM D2270 [11]) is a measure of the extent of viscosity change with temperature; the higher the VI, the less the change. VI is calculated from viscosity measurements at 40°C and 100°C. The viscosities of paraffinic and naphthenic base oils have very different behavior with temperature change.

  8. SAE J300 - Wikipedia

    en.wikipedia.org/wiki/SAE_J300

    A 10W-30 oil must pass the SAE J300 viscosity grade requirements for both 10W and 30, and all limitations placed on the viscosity grades, such as the requirement that a 10W oil must fail the 5W requirements. Viscosity index improvers (VIIs) are special polymer additives added to oil, usually to improve cold weather performance in passenger ...

  9. Power-law fluid - Wikipedia

    en.wikipedia.org/wiki/Power-law_fluid

    A Newtonian fluid is a power-law fluid with a behaviour index of 1, where the shear stress is directly proportional to the shear rate: = These fluids have a constant viscosity, μ, across all shear rates and include many of the most common fluids, such as water, most aqueous solutions, oils, corn syrup, glycerine, air and other gases.

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