The viscosity index is not defined and may not be reported for oils of kinematic viscosity of less than 2.0 mm2/s (cSt) at 100☌.ĥ.1.2 If the kinematic viscosity is above 70 mm 2/s (cSt) at 100☌, calculate the values of L and H as follows: Measured values that are not listed, but are within the range of Table 1, may be obtained by linear interpolation. Procedure A - For Oils of Viscosity Index Up to and Including 100ĥ.1.1 If the kinematic viscosity of the oils at 100☌ is less than or equal to 70 mm2/s (cSt), extract from Table 1 the corresponding values for L and H. ASTM D2270 for calculating viscosity index from kinematic viscosity at 40 and 100☌ĥ.
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