ASTM D97-05

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An American National Standard
Designation:D97–05
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 Several ASTM test methods offering alternative proce-
2.2 Energy Institute Standards:
dures for determining pour points using automatic apparatus
5
Specifications for IP Standard Thermometers
areavailable.Noneofthemsharethesamedesignationnumber
as Test Method D97. When an automatic instrument is used,
3. Terminology
the ASTM test method designation number specific to the
3.1 Definitions:
technique shall be reported with the results. A procedure for
3.1.1 black oil, n—lubricant containing asphaltic materials.
testing the pour point of crude oils is described inTest Method
Blackoilsareusedinheavy-dutyequipmentapplications,such
D5853.
as mining and quarrying, where extra adhesiveness is desired.
1.3 This standard does not purport to address all of the
3.1.2 cylinder stock, n—lubricant for independently lubri-
safety concerns, if any, associated with its use. It is the
cated engine cylinders, such as those of steam engines and air
responsibility of the user of this standard to establish appro-
compressors. Cylinder stock are also used for lubrication of
priate safety and health practices and determine the applica-
valves and other elements in the cylinder area.
bility of regulatory limitations prior to use.
3.1.3 pour point, n—in petroleum products, the lowest
2. Referenced Documents temperature at which movement of the test specimen is
3 observed under prescribed conditions of test.
2.1 ASTM Standards:
3.1.4 residual fuel, n—a liquid fuel containing bottoms
D117 Guide for Sampling, Test Methods, and Specifica-
remaining from crude distillation or thermal cracking; some-
tions for Electrical Insulating Oils of Petroleum Origin
times referred to as heavy fuel oil.
3.1.4.1 Discussion—Residual fuels comprise Grades 4, 5,
1
This test method is under the jurisdiction of ASTM Committee D02 on
and 6 fuel oils, as defined in Specification D396.
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.07 on Flow Properties.
4. Summary of Test Method
CurrenteditionapprovedJune1,2005.PublishedJuly2005.Originallyapproved
4.1 After preliminary heating, the sample is cooled at a
in 1927, replacing D47. Last previous edition approved in 2004 as D97–04.
In the IP, this test method is under the jurisdiction of the Standardization
specified rate and examined at intervals of 3°C for flow
Committee. This test method was adopted as a joint ASTM-IP Standard in 1965.
characteristics. The lowest temperature at which movement of
2
Statements defining this test and its significance when applied to electrical
the specimen is observed is recorded as the pour point.
insulating oils of mineral origin will be found in GuideD117.
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 Annual 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.
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D97–05
NOTE—Dimensions are in millimetres (not to scale).
FIG. 1 Apparatus for Pour Point Test
5. Significance and Use 6.7) so that not more than 25 mm projects out of the cooling
medium, and shall be capable of being cleaned.
5.1 The pour point of a petroleum specimen is an index of
6.5 Disk, cork or felt, 6 mm thick t
...