1.2 This standard does not apply to petroleum products with kinematic viscosities less than 2.0 mm2/s (cSt) at 100☌. 1.1.2 Procedure B-For petroleum products of which the viscosity index is 100 or greater.
Astm d2270 viscosity index iso#
Referenced Documents 2.1 ASTM Standards: 3 D 341 Test Method for Viscosity-Temperature Charts for Liquid Petroleum Products D 445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and the Calculation of Dynamic Viscosity) D 1695 Terminology of Cellulose and Cellulose Derivatives 2.2 ISO Standards: ISO 2909 Petroleum Products-Calculation of Viscosity Index from Kinematic Viscosity Petroleum Products-Transparent and Opaque Liquids-Determination of Kinematic Viscosity and Calculation of Dynamic Viscosity4 2.3 Energy Institute Standard: IP 71 Determination of Kinematic Viscosity and Calculation of Dynamic Viscosity5 1.1.1 Procedure A-For petroleum products of viscosity index up to and including 100. NOTE 1-The results obtained from the calculation of VI from kinematic viscosities determined at 40 and 100☌ are virtually the same as those obtained from the former VI system using kinematic viscosities determined at 37.78 and 98.89☌. Scope 1.1 This practice2 covers 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☌. 1.4 The values stated in SI units are to be regarded as the standard.
The determination of the kinematic viscosity of a petroleum product shall be carried out in accordance with Test Methods D 445, IP 71, ISO 3104, or ISO 2909. 1.3 The kinematic viscosity values are determined with reference to a value of 1.0034 mm2/s (cSt) at 20.00☌ for distilled water. This standard has been approved for use by agencies of the Department of Defense.
A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. A number in parentheses indicates the year of last reapproval. An American National Standard British Standard 4459 Designation: D 2270 – 04 Designation: 226/91 (95) Standard Practice for Calculating Viscosity Index from Kinematic Viscosity at 40 and 100☌1 This standard is issued under the fixed designation D 2270 the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.
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