• ASTM D2270-04

ASTM D2270-04

Standard Practice for Calculating Viscosity Index From Kinematic Viscosity at 40 and 100 degrees C

ASTM International, 11/01/2004

Publisher: ASTM

File Format: PDF

$30.00$60.00


Published:01/11/2004

Pages:6

File Size:1 file , 67 KB

Note:This product is unavailable in Russia, Ukraine, Belarus

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 100oC.

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

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 100oC. Table 1 given in this practice applies to petroleum products with kinematic viscosities between 2 and 70 mm²/s (cSt) at 100oC. Equations are provided for calculating viscosity index for petroleum products having kinematic viscosities above 70 mm²/s (cSt) at 100oC.

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 100oC, an estimate may be made of the viscosity index by calculating the kinematic viscosity at temperatures of 40 and 100oC 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 20.00oC 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.

More ASTM standard pdf

ASTM D1792-17(2023)

ASTM D1792-17(2023)

Standard Test Method for Long-Term Removability Properties of Emulsion Floor Polishes

$25.00 $50.00

ASTM D8268-19(2023)

ASTM D8268-19(2023)

Standard Practice for Rubber Compounding Materials—Evaluation of Recycled Vulcanizate Particulate Rubber

$27.00 $55.00

ASTM D7361-07(2023)

ASTM D7361-07(2023)

Standard Test Method for Accelerated Compressive Creep of Geosynthetic Materials Based on Time-Temperature Superposition Using the Stepped Isothermal Method

$28.00 $57.00

ASTM D7440-23

ASTM D7440-23

Standard Practice for Characterizing Uncertainty in Air Quality Measurements

$34.00 $69.00