ASTM-D445 2011

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D445-11a Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)

Published By	Publication Date	Number of Pages
ASTM	2011	13

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Description

1.1 This test method specifies a procedure for the determination of the kinematic viscosity, ? , of liquid petroleum products, both transparent and opaque, by measuring the time for a volume of liquid to flow under gravity through a calibrated glass capillary viscometer. The dynamic viscosity, ? , can be obtained by multiplying the kinematic viscosity, ? , by the density, ? , of the liquid.

Note 1For the measurement of the kinematic viscosity and viscosity of bitumens, see also Test Methods D2170 and D2171 .

Note 2ISO 3104 corresponds to Test Method D445.

1.2 The result obtained from this test method is dependent upon the behavior of the sample and is intended for application to liquids for which primarily the shear stress and shear rates are proportional (Newtonian flow behavior). If, however, the viscosity varies significantly with the rate of shear, different results may be obtained from viscometers of different capillary diameters. The procedure and precision values for residual fuel oils, which under some conditions exhibit non-Newtonian behavior, have been included.

1.3 The range of kinematic viscosities covered by this test method is from 0.2 to 300 000 mm ² /s (see Table A1.1) at all temperatures (see 6.3 and 6.4). The precision has only been determined for those materials, kinematic viscosity ranges and temperatures as shown in the footnotes to the precision section.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents
2	Terminology Summary of Test Method
3	Significance and Use Apparatus
4	FIG. 1
5	Reagents and Materials Certified Viscosity Reference Standards Calibration and Verification General Procedure for Kinematic Viscosity TABLE 1
6	Procedure for Transparent Liquids Procedure for Opaque Liquids
7	Cleaning of Viscometer Calculation Expression of Results Report Precision and Bias
8	Keywords
9	A1. VISCOMETER TYPES AND CERTIFIED VISCOSITY REFERENCE STANDARDS A1.1 Viscometer Types TABLE A1.1 TABLE A1.2
10	A2. KINEMATIC VISCOSITY TEST THERMOMETERS A2.1 Short-Range Specialized Thermometer A2.2 Calibration TABLE A2.1
11	TABLE A2.2 FIG. A2.1
12	A3. TIMER ACCURACY A3.1 A4. CALCULATION OF ACCEPTABLE TOLERANCE ZONE (BAND) TO DETERMINE CONFORMANCE WITH A CERTIFIED REFERENCE MATERIAL A4.1 A4.2 A4.3 A4.4 A4.5

Additional information

Standard Title	D445-11a Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
Published Code	ASTM
Publication Date	2011
Pages Count	13

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ASTM-D445 2011

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