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ASTM D2270-93(1998)

Historical Reaffirmation

Standard Practice for Calculating Viscosity Index from Kinematic Viscosity at 40 °C and 100 °C

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1.1 This practice specifies the procedures for calculating the viscosity index of petroleum products, such as lubricating oils, and related materials from their kinematic viscosities at 40 and 100&#176C.<b> </b></p> <p>1.1.1 Procedure A -For petroleum products of viscosity index up to and including 100. </p> <p>1.1.2 Procedure B -For petroleum products of which the viscosity index is 100 or greater. </p> <p>1.2 Table 1 given in this practice applies to petroleum products with kinematic viscosities between 2 and 70 mm<b> </b>/s (cSt) at 100&#176C.<b> </b> Equations are provided for calculating viscosity index for petroleum products having kinematic viscosities above 70 mm<b> </b>/s (cSt) at 100&#176C.</p> <p>1.3 The kinematic viscosity values are determined with reference to a value of 1.0038 mm<b> </b>/s (cSt) at 20.00&#176C for distilled water. The determination of the kinematic viscosity of a petroleum product shall be carried out in accordance with Test Methods D445, IP 71, ISO 3104, or ISO 2909.</p> <p>1.4 The values stated in SI units are to be regarded as the standard.</p>


SDO ASTM: ASTM International
Document Number D2270
Publication Date April 10, 1998
Language en - English
Page Count 6
Revision Level 93(1998)
Supercedes
Committee D02.07
Publish Date Document Id Type View
May 1, 2024 D2270-24 Revision
Oct. 1, 2010 D2270-10E01 Revision
Oct. 1, 2010 D2270-10 Revision
Nov. 1, 2004 D2270-04 Revision
Jan. 1, 2016 D2270-10R16 Reaffirmation
April 10, 1998 D2270-93R98 Reaffirmation