viscosity-temperature index

См. также в других словарях:

• Viscosity — For other uses, see Viscosity (disambiguation). Viscosity The substance above has lower viscosity than the substance below SI symbol: μ, η SI unit: Pa·s  …   Wikipedia

• Viscosity index — is a petroleum industry term. It is a lubricating oil quality indicator, an arbitrary measure for the change of kinematic viscosity with temperature. The viscosity of liquids decreases as temperature increases. The viscosity of a lubricant is… …   Wikipedia

• viscosity index — noun : an arbitrary number assigned as a measure of the constancy of the viscosity of a lubricating oil with change of temperature such that a high index indicates that the viscosity changes little with temperature * * * Auto., Mach. an arbitrary …   Useful english dictionary

• viscosity index — [1] (VI) A measure of how the viscosity of a liquid (especially oil) changes with temperature: the higher the VI, the smaller the change of viscosity with temperature [2] A measure of an oil s ability to resist changes in viscosity when heated …   Dictionary of automotive terms

• index — 1. [NA] SYN: i. finger. 2. A guide, standard, indicator, symbol, or number denoting the relation in respect to size, capacity, or function, of one part or thing to another. SEE ALSO: quotient, r …   Medical dictionary

• viscosity index — noun Date: 1929 an arbitrary number assigned as a measure of the constancy of the viscosity of a lubricating oil with change of temperature with higher numbers indicating viscosities that change little with temperature …   New Collegiate Dictionary

• viscosity index — Auto., Mach. an arbitrary scale for lubricating oils that indicates the extent of variation in viscosity with variation of temperature. [1935 40] * * * …   Universalium

• viscosity index — viscos′ity in dex n. mac aum an arbitrary scale for lubricating oils that indicates the extent of variation in viscosity with variation of temperature …   From formal English to slang

• viscosity index improver — An oil additive which reduces thinning at high temperature, thus improving the VI …   Dictionary of automotive terms

• Calculated Ignition Index — The Calculated Ignition Index (CII) is an index of the ignition quality of residual fuel oil.The running of all internal combustion engines is dependent on the ignition quality of the fuel. For spark ignition engines the fuel has an octane rating …   Wikipedia

• Calculated Carbon Aromaticity Index — The calculated carbon aromaticity index (CCAI) is an index of the ignition quality of residual fuel oil.The running of all internal combustion engines is dependent on the ignition quality of the fuel. For spark ignition engines the fuel has an… …   Wikipedia