Standard Test Method for Kinematic Viscosity of Asphalts (Bitumens)

SCOPE
1.1 This test method covers procedures for the determination of kinematic viscosity of liquid asphalts (bitumens), road oils and distillation residues of liquid asphalts (bitumens) all at 60°C (140°F) and of asphalt cements at 135°C (275°F) (Note 1) in the range from 6 to 100 000 mm2/s (cSt).
1.2 Results of this test method can be used to calculate viscosity when the density of the test material at the test temperature is known or can be determined. See for the method of calculation.
Note 1—This test method is suitable for use at other temperatures and at lower kinematic viscosities, but the precision is based on determinations on liquid asphalts and road oils at 60°C (140°F) and on asphalt cements at 135°C (275°F) only in the viscosity range from 30 to 6000 mm 2/s (cSt).
1.3 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.

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Publication Date
09-Dec-2001
Drafting Committee
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ASTM D2170-01 - Standard Test Method for Kinematic Viscosity of Asphalts (Bitumens)
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 2170 – 01
Designation: 319/84 (89)
Standard Test Method for
1
Kinematic Viscosity of Asphalts (Bitumens)
This standard is issued under the fixed designation D 2170; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope D 2162 Test Method for Basic Calibration of Master Vis-
3
cometers and Viscosity Oil Standards
1.1 This test method covers procedures for the determina-
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D 2493 Viscosity-Temperature Chart for Asphalts
tion of kinematic viscosity of liquid asphalts (bitumens), road
5
E 1 Specification for ASTM Thermometers
oils and distillation residues of liquid asphalts (bitumens) all at
E 77 Test Method for Inspection and Verification of Ther-
60°C (140°F) and of asphalt cements at 135°C (275°F) (Note
5
2
mometers
1) in the range from 6 to 100 000 mm /s (cSt).
1.2 Results of this test method can be used to calculate
3. Terminology
viscosity when the density of the test material at the test
3.1 Definitions:
temperature is known or can be determined. See Annex A1 for
3.1.1 density—the mass per unit volume of liquid and the
the method of calculation.
3 3
cgs unit of density is 1 g/cm . The SI unit of density is 1 kg/m .
NOTE 1—This test method is suitable for use at other temperatures and
3.1.2 kinematic viscosity—the ratio of the viscosity to the
at lower kinematic viscosities, but the precision is based on determinations
density of a liquid. It is a measure of the resistance to flow of
on liquid asphalts and road oils at 60°C (140°F) and on asphalt cements
a liquid under gravity. The SI unit of kinematic viscosity is
2
at 135°C (275°F) only in the viscosity range from 30 to 6000 mm /s (cSt).
2 2
m /s; for practical use, a submultiple (mm /s) is more conve-
1.3 This standard does not purport to address all of the 2
nient. The cgs unit of kinematic viscosity is 1 cm /s and is
−2
safety concerns, if any, associated with its use. It is the
called a stokes (symbol St). The centistokes (1 cSt = 10 St) is
responsibility of the user of this standard to establish appro- 2
1mm /s and is often used.
priate safety and health practices and determine the applica-
3.1.3 Newtonian liquid—a liquid in which the rate of shear
bility of regulatory limitations prior to use.
is proportional to the shearing stress. The constant ratio of the
shearing stress to the rate of shear is the viscosity of the liquid.
2. Referenced Documents
If the ratio is not constant, the liquid is non-Newtonian.
2.1 ASTM Standards:
3.1.4 viscosity—the ratio between the applied shear stress
C 670 Practice for Preparing Precision and Bias Statements
and rate of shear is called the coefficient of viscosity. This
2
for Test Methods for Construction Materials
coefficient is a measure of the resistance to flow of a liquid. It
D 92 Test Method for Flash and Fire Points by Cleveland
is commonly called the viscosity of the liquid. The cgs unit of
3
Open Cup 2
viscosity is 1 g/cm·s (1 dyne·s/cm ) and is called a poise (P).
D 341 Viscosity-Temperature Charts for Liquid Petroleum
2
The SI unit of viscosity is 1 Pa·s (1 N·s/m ) and is equivalent
3
Products
to 10 P.
D 445 Test Method for Kinematic Viscosity of Transparent
and Opaque Liquids (and the Calculation of Dynamic
4. Summary of Test Method
3
Viscosity)
4.1 The time is measured for a fixed volume of the liquid to
D 446 Specifications and Operating Instructions for Glass
flow through the capillary of a calibrated glass capillary
3
Capillary Kinematic Viscometers
viscometer under an accurately reproducible head and at a
closely controlled temperature. The kinematic viscosity is then
1
This test method is under the jurisdiction of ASTM Committee D04 on Road
calculated by multiplying the efflux time in seconds by the
and Paving Materials and is the direct responsibility of Subcommittee D04.44 on
viscometer calibration factor.
Rheological Tests. In the IP this test method is under the jurisdiction of the
Standardization Committee.
Current edition approved Oct. 10, 2001. Published November 2001. Originally
published as D 2170 – 63 T. Last previous edition D 2170 – 95.
2 4
Annual Book of ASTM Standards, Vol 04.02. Annual Book of ASTM Standards, Vol 04.03.
3 5
Annual Book of ASTM Standards, Vol 05.01. Annual Book of ASTM Standards, Vol 14.03.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D 2170
5. Significance and Use device graduated in divisions of 0.1 s or less and accurate to
withi
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