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Viscosity index calculator cst12/16/2023 If you have the viscosity in centiPoise, divide the centiPoise value by the oils viscosity to get centiStokes. The viscosity in centiStokes at 40☌ and the viscosity index of the oil are used as input. Viscosity Index Calculator This calculator uses centiStokes (cSt), which are equivalent to mm2/s. On the other hand, the kinematic viscosity tells about the speed the fluid reaches when a particular force is applied to the fluid. Use this calculator to find the viscosity in centiStokes of an oil at a temperature of 100☌. One with a VI of 100 and one with a VI of 0. viscosity index (VI), which can aid in defining a lubricant. When choosing between the two viscosities, it is worth noting that dynamic viscosity tells us about the force required to move the fluid at a certain speed. for the unknown oil: Y cinematic viscosity 100 C and U cinematic viscosity 40 C. cSt (kinematic viscosity in centistokes), and absolute viscosity. In the first row table 1, Enter kinematic viscosity (KV) at 40C, In the same way enter kinematic viscosity 100C in the second row. Kinematic viscosity 1 mm 2 /s at 40C Kinematic viscosity. To calculate viscosity index we need viscosity of an oil both at 40C and 100C. viscosity at 40 and 100C Calculator for viscosity index (VI) according to ASTM D2270 and ISO 2909. Here’s a really nerdy table that uses the much tighter Centistoke (Cst) testing scale, so we can compare brands with accuracy.The larger the force or stress needed to move the plate, the more viscous the fluid is. Standard practice for viscosity index (VI) calculation as per ASTM D2270 and ISO 2909. The Viscosity of low VI oils change significantly with temperature The Viscosity of high VI oils changes much less with temperature 30 120 VI 50 0 100 150 0 VI 200 250 40 50 60 70 80 Temperature, ☌ 90 100 110 300 K i n ema t i V is c o s i t y, m. But, due to the international SAE standard being so loose, one oil company’s 5Wt can be the same viscosity as another’s 7.5Wt. Viscosity Index Viscosity Index (VI) defines the viscosity relationship with temperature. Any warranties as to the quality of marine. The viscosity index of the hydraulic oil determined with relation (1) is 58 higher. Low shear rate kinematic viscosity at 100C. This document is supplied for information only and is not part of any contract for the supply of marine fuels. Viscosity index calculation was per formed with a computer. It decreases with rising temperature, i.e. So what oil should you use in your suspension? Most suspension units use approximately a 5Wt (SAE). additional calculation of the Viscosity Index (VI) with just one filling. Products & Service Tools & Apps Viscosity Index Calculator Viscosity index calculator The viscosity of a fluid is its resistance to flow and is highly influenced by temperature. Buying the right oil for your bike is very important as it can effect performance and the amount of wear-and-tear your bike receives.
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