ASTM D8210-18
(Test Method)Standard Test Method for Automatic Determination of Low-Temperature Viscosity of Automatic Transmission Fluids, Hydraulic Fluids, and Lubricants Using a Rotational Viscometer
Standard Test Method for Automatic Determination of Low-Temperature Viscosity of Automatic Transmission Fluids, Hydraulic Fluids, and Lubricants Using a Rotational Viscometer
SIGNIFICANCE AND USE
5.1 The low-temperature, low-shear-rate viscosity of automatic transmission fluids, gear oils, torque and tractor fluids, power steering fluids, and hydraulic oils are of considerable importance to the proper operation of many mechanical devices. Low-temperature viscosity limits of these fluids are often specified to ensure their suitability for use and are cited in many specifications.
5.2 The manual test method, Test Method D2983, was developed to determine whether an automatic transmission fluid (ATF) would meet low-temperature performance criterion originally defined using a particular model viscometer.4 The viscosity range covered in the original ATF performance correlation studies was from less than 1000 mPa·s to more than 60 000 mPa·s. The success of the ATF correlation and the development of this test method has over time been applied to other fluids and lubricants such as gear oils, hydraulic fluids, and so forth.
5.3 The viscosity determined by this test method using option A was found to be statistically indistinguishable from Test Method D2983 – 16 measurements based on the ILS data to establish this test method’s precision.
5.4 Due to the shorter time at test temperature, results from the abbreviated thermal conditioning (Option B) may differ from results obtained with the 14 h soak at test temperature (Option A). For the samples used in developing this test method, results obtained with the abbreviated procedure (Option B) tended to be less than 14 h soak (Option A). This difference seemed to be larger for products that contained high wax base stock.
SCOPE
1.1 This test method automates the determination of low temperature, low-shear-rate viscosity of driveline and hydraulic fluids, such as automatic transmission fluids, gear oils, hydraulic fluids, and other lubricants. It utilizes a thermoelectrically temperature-controlled sample chamber along with a programmable rotational viscometer. This test method covers a viscosity range of 300 mPa·s to 900 000 mPa·s measured at temperatures from –40 °C to –10 °C.
1.2 The precision data were determined at –40 °C and –26 °C for a viscosity range of 6380 mPa·s to 255 840 mPa·s.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard except those noted below.
1.3.1 Exception—The test method uses the SI unit, milliPascal-second (mPa·s), as the unit of viscosity. (1 cP = 1 mPa·s).
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
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Standards Content (Sample)
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Designation: D8210 − 18
Standard Test Method for
Automatic Determination of Low-Temperature Viscosity of
Automatic Transmission Fluids, Hydraulic Fluids, and
1
Lubricants Using a Rotational Viscometer
This standard is issued under the fixed designation D8210; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope D341 Practice for Viscosity-Temperature Charts for Liquid
Petroleum Products
1.1 This test method automates the determination of low
D2983 Test Method for Low-Temperature Viscosity of Au-
temperature, low-shear-rate viscosity of driveline and hydrau-
tomaticTransmission Fluids, Hydraulic Fluids, and Lubri-
lic fluids, such as automatic transmission fluids, gear oils,
cants using a Rotational Viscometer
hydraulic fluids, and other lubricants. It utilizes a thermoelec-
D5293 Test Method for Apparent Viscosity of Engine Oils
trically temperature-controlled sample chamber along with a
and Base Stocks Between –10 °C and –35 °C Using
programmable rotational viscometer.This test method covers a
Cold-Cranking Simulator
viscosity range of 300 mPa·s to 900 000 mPa·s measured at
D6708 Practice for StatisticalAssessment and Improvement
temperatures from –40 °C to –10 °C.
of Expected Agreement Between Two Test Methods that
1.2 The precision data were determined at –40 °C and
Purport to Measure the Same Property of a Material
–26 °C for a viscosity range of 6380 mPa·s to 255 840 mPa·s.
D7962 Practice for Determination of Minimum Immersion
1.3 The values stated in SI units are to be regarded as Depth and Assessment of Temperature Sensor Measure-
ment Drift
standard. No other units of measurement are included in this
standard except those noted below. E644 Test Methods for Testing Industrial Resistance Ther-
mometers
1.3.1 Exception—The test method uses the SI unit,
milliPascal-second (mPa·s), as the unit of viscosity. (1 cP = E2877 Guide for Digital Contact Thermometers
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1 mPa·s).
2.2 ISO Standard:
ISO 17025 General requirements for the competence of
1.4 This standard does not purport to address all of the
testing and calibration laboratories
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3. Terminology
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
3.1 Definitions:
1.5 This international standard was developed in accor-
3.1.1 digital contact thermometer (DCT), n—an electronic
dance with internationally recognized principles on standard-
device consisting of a digital display and associated tempera-
ization established in the Decision on Principles for the
ture sensing probe.
Development of International Standards, Guides and Recom-
3.1.1.1 Discussion—This device consists of a temperature
mendations issued by the World Trade Organization Technical
sensor connected to a measuring instrument; this instrument
Barriers to Trade (TBT) Committee.
measures the temperature-dependent quantity of the sensor,
computes the temperature from the measured quantity, and
2. Referenced Documents
provides a digital output. This digital output goes to a digital
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2.1 ASTM Standards:
displayand/orrecordingdevicethatmaybeinternalorexternal
to the device. These devices are referred to as “digital
thermometers.”
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This test method is under the jurisdiction of ASTM Committee D02 on
3.1.1.2 Discussion—PET is an acronym for portable elec-
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Subcommittee D02.07 on Flow Properties.
tronic thermometer, a subset of digital contact thermometers
Current edition approved July 1, 2018. Published September 2018. DOI:
(DCT).
10.1520/D8210-18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
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D8210 − 18
3.2 Definitions of Terms Specific to This Standard: 5.2 The manual test method, Test Method D2983, was
3.2.1 reference viscosity, n—the viscosity of Newtonian developed to determine whether an automatic transmission
reference fluid whose values were determined by the use of a fluid (ATF) would meet low-temperature perform
...
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