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ASTM-D445 2004

$40.63

D445-04e2 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and the Calculation of Dynamic Viscosity)

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ASTM 2004 10
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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 D 2170 and D 2171.

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 ) at all temperatures (see and ). The precision has only been determined for those materials, kinematic viscosity ranges and temperatures as shown in the footnotes to the precision section.

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

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
2 Terminology
Summary of Test Method
Significance and Use
Apparatus
3 Reagents and Materials
Certified Viscosity Reference Standards
Calibration and Verification
4 General Procedure for Kinematic Viscosity
Procedure for Transparent Liquids
TABLE 1
5 Procedure for Opaque Liquids
Cleaning of Viscometer
Calculation
6 Expression of Results
Report
Precision
7 Keywords
A1. VISCOMETER TYPES AND CERTIFIED VISCOSITY REFERENCE STANDARDS
A1.1 Viscometer Types
TABLE A1.1
8 A2. KINEMATIC VISCOSITY TEST THERMOMETERS
A2.1 Short-Range Specialized Thermometer
A2.2 Calibration
TABLE A1.2
TABLE A2.1
TABLE A2.2
9 FIG. A2.1
10 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
ASTM-D445 2004
$40.63