ASTM-D2270 2004

$40.63

D2270-04 Standard Practice for Calculating Viscosity Index From Kinematic Viscosity at 40 and 100°C

Published By	Publication Date	Number of Pages
ASTM	2004	6

Guaranteed Safe Checkout

Category: ASTM

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

Description

ASTM D2270-04

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

ASTM D2270

Scope

1.1 This practice 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^oC.

Note 1 — The results obtained from the calculation of VI from kinematic viscosities determined at 40 and 100^oC are virtually the same as those obtained from the former VI system using kinematic viscosities determined at 37.78 and 98.89^oC.

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 This standard does not apply to petroleum products with kinematic viscosities less than 2.0 mm²/s (cSt) at 100^oC. Table 1 given in this practice applies to petroleum products with kinematic viscosities between 2 and 70 mm²/s (cSt) at 100^oC. Equations are provided for calculating viscosity index for petroleum products having kinematic viscosities above 70 mm²/s (cSt) at 100^oC.

Note 2 – 1 cSt = 1 mm²/s = 10⁶m²/s.

1.2.1 In cases where kinematic viscosity data are not available at temperatures of 40 and 100^oC, an estimate may be made of the viscosity index by calculating the kinematic viscosity at temperatures of 40 and 100^oC from data obtained at other temperatures. Such viscosity index data may be considered as suitable for information only and not for specification purposes. See Test Method D 341, Annex A1.

1.3 The kinematic viscosity values are determined with reference to a value of 1.0034 mm²/s (cSt) at 20.00^oC for distilled water. 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.

1.4 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/D2270-04

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents
2	TABLE 1
3	Terminology Significance and Use Procedure A—Oils of Viscosity Index Up to and Including 100 Procedure B—Oils of Viscosity Index of 100 and Greater
4	Report Precision and Bias Keywords TABLE 2
5	X1. VISCOSITY INDEX CALCULATIONS FROM KINEMATIC VISCOSITIES AT NON-STANDARD TEMPERATURES X1.1 X1.2 X2. ANOTHER COMPUTATIONAL METHOD X2.1 X2.2 X2.3 TABLE 3 TABLE X2.1
6	X2.4 X2.5

Additional information

Standard Title	D2270-04 Standard Practice for Calculating Viscosity Index From Kinematic Viscosity at 40 and 100°C
Published Code	ASTM
Publication Date	2004
Pages Count	6