ASTM D2602-86

Test Method for Apparent Viscosity of Engine Oils at Low Temperature Using the Cold-Cranking Simulator (Withdrawn 1993)

General Information

• Status: Withdrawn
• ICS: 75.100 - Lubricants, industrial oils and related products
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.07.0B - High Temperature Rheology of Non-Newtonian Fluids

Standards Content (Sample)

ASTM D2602 86 II 0757530 O026255 7 //-SC* a"/
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Designation: D 2602 i 86
An American National Standard
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AMERICAN SOCIETY FOR TESTING AND MATERIALS
1916 Race SI., Philadelphia. Pa. 19103
Designation: 350/81
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
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If not listed in the current combined index, will appear in the next edition.
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Standard Test Method for
APPARENT VISCOSITY OF ENGINE OILS AT LOW
TEMPERATURE USING THE COLD-CRANKING SIMULATORI
This standard is issued under the fixed designation D 2602: 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 melhoti was adopted as an ASTM-IP Slanàard.
to predict flow rates to rocker arm bearings. or other
1. scope
engine locations at low temperatures.
1.1 This test method covers the laboratory
NOTE 4-Originally many specifications using the
determination of apparent viscosity of engine oils
cold cranking simulator were set at O"F (-i7.78"C).
Around 1977 many of these specifications were
at O"F (-17.8"C) and at high shear rates. The
changed to -i 8°C. At all places in this test method. the
results are related to engine-cranking character-
use of - i 8°C may be substituted for O"F (- I7.78"C). If
istics of engine oils (Notes 1, 2 and 3).
-18'C is used. the calibration of the sensor and the
1.2 The values stated in inch-pound units are
calibration of the viscometric cell must be carried out
at -i 8'C using standard oils with known viscosities at
to be regarded as the standard. The values given
-18°C. Section 12 on Precision and Bias applies to
in parentheses are for information only.
measurements made at -18°C as well as O"F
1.3 This standard ma-v involve hazardous ma-
(- 17.78'C).
terials, operations, and equipment. This standard
does not piirport to address all of the safety prob-.
2. Terminology
lems associated with its use. It is the responsibil-
2.1 Definitions:
ity ofthe user of this standard to establish appro-
2.1.2 viscosity-the ratio between the applied
priate safity and health practices and determine
shear stress and rate of shear, It is sometimes
the applicability of regulatory limitations prior to
called the coefficient of dynamic viscosity. This
use.
coefficient is thus a measure of the resistance to
NOTE ¡-The CRC test oils used to establish this
flow of the liquid. In the SI the unit of viscosity
test method cover the range from 600 to 8400 CP (mPa.
is the pascal-second; for practical use a submul-
s) at O"F (-17.8"C) and 2000 to 20 000 CP (mPa-s) at
tiple (miIlipascal-second) is more convenient.
-20°F (-28.9"C). Precision data for this test method
1 mPa.s and is customanly
are based only on the data at O'F. The centipoise is
NOTE 2-The detailed relations between the appar-
used.
ent viscosities determined by this test method and
2.1.3 Nenitonian oil or Jiiid-an oil or fluid
enginexranking performance as determined by the Co-
that exhibits a constant viscosity at all shear rates.
ordinating Research Council (CRC) L-49 test are shown
2.1.4 non-Newtonian oil or fluid-an oil or
in Appendixes I and II of Test Method D2602. See
also CRC Report No. 409 (available from Coordinating
fluid that exhibits a viscosity which varies with
Research Council, Inc.; 2 i9 Perimeter Center Parkway,
changing shear stress or shear rate.
be aware that
Atlanta, GA 30346). It is important to
2.1.5 apparent viscosity-the determined vis-
the CRC L-49 test is much less standardized and precise
cosity obtained by use of the method under de-
than this test method. Therefore, apparent viscosity
test method may not predict
values obtained by this scription. Since many engine oils are non-New-
accurately the engine-cranking viscosities in individual
engines, even though the correlation with average en-
' This test method is under the jurisdiction of ASTM Com-
gine results is satisfactory.
mittee D-2 on Petroleum Products and Lubricants and is the
NOTE 3-Since this test method was developed
direct responsibility of Subcommittee W2.07 on How Proper-
solely for use in relation to engine cranking character-
ties.
istics of engine oils, the apparent viscosity values ob-
Current edition approved Oct. 3 I. 1986. Published December
tained should not be used to predict other types of
1986. Originally published as D 2602 - 67 T. Last previous edi-
performance. For example, the method is not suitable tion D 2602 - 75 (1980).

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ASTM D2602 86 = 0759510 0026256 O
D 2602
indicates the test temperature.
tonian at low temperature, apparent viscosity
5.3 Circirlating System, for supplying suitable
may vary with shear rate.
liquid coolant to the stator
...