ASTM D97-05a

Standard Test Method for Pour Point of Petroleum Products

SCOPE
1.1 This test method is intended for use on any petroleum product. A procedure suitable for black specimens, cylinder stock, and nondistillate fuel oil is described in 8.8. A procedure for testing the fluidity of a residual fuel oil at a specified temperature is described in Appendix X1.
1.2 Currently there is no ASTM test method for automated Test Method D 97 pour point measurements.
1.3 Several ASTM test methods offering alternative procedures for determining pour points using automatic apparatus are available. None of them share the same designation number as Test Method D 97. When an automatic instrument is used, the ASTM test method designation number specific to the technique shall be reported with the results. A procedure for testing the pour point of crude oils is described in Test Method D 5853.
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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Jun-2005
• ICS: 75.080 - Petroleum products in general
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.07 - Flow Properties

Relations

• Replaces: ASTM D97-05 - Standard Test Method for Pour Point of Petroleum Products
• Effective Date: 01-Jul-2005
• Replaced By: ASTM D97-06 - Standard Test Method for Pour Point of Petroleum Products
• Effective Date: 01-Nov-2006
• Referred By: ASTM D6923-23 - Standard Test Method for Evaluation of Engine Oils in a High Speed, Single-Cylinder Diesel Engine—Caterpillar 1R Test Procedure
• Effective Date: 01-Jul-2005
• Referred By: ASTM D5966-22 - Standard Test Method for Evaluation of Engine Oils for Roller Follower Wear in Light-Duty Diesel Engine
• Effective Date: 01-Jul-2005
• Referred By: ASTM D8074-22 - Standard Test Method for Evaluation of Diesel Engine Oils in DD13 Diesel Engine
• Effective Date: 01-Jul-2005
• Referred By: ASTM F2161-21 - Standard Guide for Instrument and Precision Bearing Lubricants—Part 1 Oils
• Effective Date: 01-Jul-2005
• Referred By: ASTM F715-07(2023) - Standard Test Methods for Coated Fabrics Used for Oil Spill Control and Storage
• Effective Date: 01-Jul-2005
• Referred By: ASTM D6922-13(2018) - Standard Test Method for Determination of Homogeneity and Miscibility in Automotive Engine Oils
• Effective Date: 01-Jul-2005
• Referred By: ASTM D117-22 - Standard Guide for Sampling, Test Methods, and Specifications for Electrical Insulating Liquids
• Effective Date: 01-Jul-2005
• Referred By: ASTM D7549-23 - Standard Test Method for Evaluation of Heavy-Duty Engine Oils under High Output Conditions—Caterpillar C13 Test Procedure
• Effective Date: 01-Jul-2005
• Referred By: ASTM D6074-15(2022) - Standard Guide for Characterizing Hydrocarbon Lubricant Base Oils
• Effective Date: 01-Jul-2005
• Referred By: ASTM D7346-15(2021) - Standard Test Method for No Flow Point and Pour Point of Petroleum Products and Liquid Fuels
• Effective Date: 01-Jul-2005
• Referred By: ASTM D7826-23a - Standard Guide for Evaluation of New Aviation Gasolines and New Aviation Gasoline Additives
• Effective Date: 01-Jul-2005
• Referred By: ASTM D6749-02(2018) - Standard Test Method for Pour Point of Petroleum Products (Automatic Air Pressure Method)
• Effective Date: 01-Jul-2005
• Referred By: ASTM D5346-17(2021) - Standard Test Method for Determination of the Pour Point of Petroleum Oil Used in Fatliquors and Softening Compounds
• Effective Date: 01-Jul-2005

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
Designation:D97–05a
Designation: 15/95
Standard Test Method for
1
Pour Point of Petroleum Products
ThisstandardisissuedunderthefixeddesignationD97;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
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* D396 Specification for Fuel Oils
D1659 Test Method for Maximum FluidityTemperature of
1.1 This test method is intended for use on any petroleum
4
2
Residual Fuel Oil
product. A procedure suitable for black specimens, cylinder
D2500 TestMethodforCloudPointofPetroleumProducts
stock,andnondistillatefueloilisdescribedin8.8.Aprocedure
D3245 TestMethodforPumpabilityofIndustrialFuelOils
for testing the fluidity of a residual fuel oil at a specified
D5853 Test Method for Pour Point of Crude Oils
temperature is described in Appendix X1.
E1 Specification forASTM Liquid-in-GlassThermometers
1.2 Currently there is no ASTM test method for automated
2.2 Energy Institute Standards:
Test Method D97 pour point measurements.
5
Specifications for IP Standard Thermometers
1.3 Several ASTM test methods offering alternative proce-
dures for determining pour points using automatic apparatus
3. Terminology
areavailable.Noneofthemsharethesamedesignationnumber
3.1 Definitions:
as Test Method D97. When an automatic instrument is used,
3.1.1 black oil, n—lubricant containing asphaltic materials.
the ASTM test method designation number specific to the
Blackoilsareusedinheavy-dutyequipmentapplications,such
technique shall be reported with the results. A procedure for
as mining and quarrying, where extra adhesiveness is desired.
testing the pour point of crude oils is described inTest Method
3.1.2 cylinder stock, n—lubricant for independently lubri-
D5853.
cated engine cylinders, such as those of steam engines and air
1.4 This standard does not purport to address all of the
compressors. Cylinder stock are also used for lubrication of
safety concerns, if any, associated with its use. It is the
valves and other elements in the cylinder area.
responsibility of the user of this standard to establish appro-
3.1.3 pour point, n—in petroleum products, the lowest
priate safety and health practices and determine the applica-
temperature at which movement of the test specimen is
bility of regulatory limitations prior to use.
observed under prescribed conditions of test.
2. Referenced Documents 3.1.4 residual fuel, n—a liquid fuel containing bottoms
3 remaining from crude distillation or thermal cracking; some-
2.1 ASTM Standards:
times referred to as heavy fuel oil.
D117 Guide for Sampling, Test Methods, and Specifica-
3.1.4.1 Discussion—Residual fuels comprise Grades 4, 5,
tions for Electrical Insulating Oils of Petroleum Origin
and 6 fuel oils, as defined in Specification D396.
4. Summary of Test Method
1
This test method is under the jurisdiction of ASTM Committee D02 on
4.1 After preliminary heating, the sample is cooled at a
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
specified rate and examined at intervals of 3°C for flow
D02.07 on Flow Properties.
Current edition approved July 1, 2005. Published August 2005. Originally
characteristics. The lowest temperature at which movement of
approved in 1927, replacing D47. Last previous edition approved in 2005 as
the specimen is observed is recorded as the pour point.
D97–05.
In the IP, this test method is under the jurisdiction of the Standardization
5. Significance and Use
Committee. This test method was adopted as a joint ASTM-IP Standard in 1965.
2
Statements defining this test and its significance when applied to electrical
5.1 The pour point of a petroleum specimen is an index of
insulating oils of mineral origin will be found in GuideD117.
the lowest temperature of its utility for certain applications.
3
Reagent Chemicals, American Chemical Society Specifications, American
Chemical Society, Washington, DC. For suggestions on the testing of reagents not
listed by the American Chemical Society, see Analar Standards for Laboratory
4
Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia Withdrawn.
5
and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville, MethodsforAnalysisandTesting,IPStandardsforPetroleumanditsProducts,
MD. Part I, Vol 2.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D97–05a
NOTE—Dimensions are in millimetres (not to scale).
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