ASTM-D2270 1998

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D2270-93(1998) Standard Practice for Calculating Viscosity Index From Kinematic Viscosity at 40 and 100°C

Published By	Publication Date	Number of Pages
ASTM	1998	7

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Description

ASTM D2270-93-Reapproved1998

Historical Standard: Standard Practice for Calculating Viscosity Index From Kinematic Viscosity at 40 and 100°C

ASTM D2270

Scope

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°C.

1.1.1 Procedure A -For petroleum products of viscosity index up to and including 100.

1.1.2 Procedure B -For petroleum products of which the viscosity index is 100 or greater.

1.2 Table 1 given in this practice applies to petroleum products with kinematic viscosities between 2 and 70 mm /s (cSt) at 100°C. Equations are provided for calculating viscosity index for petroleum products having kinematic viscosities above 70 mm /s (cSt) at 100°C.

1.3 The kinematic viscosity values are determined with reference to a value of 1.0038 mm /s (cSt) at 20.00°C 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.

1.4 The values stated in SI units are to be regarded as the standard.

Keywords

kinematic viscosity; viscosity index

ICS Code

ICS Number Code 75.080 (Petroleum products in general)

DOI: 10.1520/D2270-93R98

Additional information

Standard Title	D2270-93(1998) Standard Practice for Calculating Viscosity Index From Kinematic Viscosity at 40 and 100°C
Published Code	ASTM
Publication Date	1998
Pages Count	7