ASTM D2274-03a
(Test Method)Standard Test Method for Oxidation Stability of Distillate Fuel Oil (Accelerated Method)
Standard Test Method for Oxidation Stability of Distillate Fuel Oil (Accelerated Method)
SIGNIFICANCE AND USE
This test method provides a basis for the estimation of the storage stability of middle distillate fuels such as No. 2 fuel oil.
The test method may not provide a prediction of the quantity of insolubles that will form in field storage over any given period of time. The amount of insolubles formed in such field storage is subject to the specific conditions which are too variable for this test method to predict accurately.
Test Method D 2274 yields results more rapidly than Test Method D 4625, the 43°C bottle test. However, as a result of the significantly elevated temperature and the pure oxygen atmosphere, the nature and amount of insolubles may deviate to a greater extent than Test Method D 4625 from those formed in field storage.
SCOPE
1.1 This test method covers the measurement of the inherent stability of middle distillate petroleum fuels under specified oxidizing conditions at 95°C.
Note 1—Fuels used in establishing the precision measures for this test method were described as gas oil, diesel fuel, No. 2 heating oil, and DFM, a Navy distillate fuel suitable for diesels, boilers, and gas turbines. (The term DFM is no longer used when referring to fuel meeting MIL-F-16884 requirements; rather it is called F76 as it conforms to NATO F76 requirements.) While the test method may be used for fuels outside the range of these fuels, the precision measures may not apply.
1.2 This test method is not applicable to fuels containing residual oil or significant amounts of components derived from non-petroleum sources.
1.3 The values given in acceptable SI units are to be regarded as the standard. The values in parentheses are for information only.
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
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Standards Content (Sample)
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An American National Standard
Designation:D2274–03a
Designation:388/97
Standard Test Method for
Oxidation Stability of Distillate Fuel Oil (Accelerated
1
Method)
This standard is issued under the fixed designation D 2274; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope D 4057 Practice for Manual Sampling of Petroleum and
Petroleum Products
1.1 Thistestmethodcoversthemeasurementoftheinherent
D 4177 Practice for Automatic Sampling of Petroleum and
stability of middle distillate petroleum fuels under specified
Petroleum Products
oxidizing conditions at 95°C.
D 4625 Test Method for Distillate Fuel Storage Stability at
NOTE 1—Fuels used in establishing the precision measures for this test
43°C (110°F)
method were described as gas oil, diesel fuel, No. 2 heating oil, and DFM,
3
2.2 Military Specification:
a Navy distillate fuel suitable for diesels, boilers, and gas turbines. (The
MIL-F-16884 Fuel, Navy Distillate
term DFM is no longer used when referring to fuel meeting MIL-F-16884
requirements; rather it is called F76 as it conforms to NATO F76
3. Terminology
requirements.) While the test method may be used for fuels outside the
range of these fuels, the precision measures may not apply. 3.1 Definitions of Terms Specific to This Standard:
3.1.1 adherent insolubles (formerly adherent gum)—
1.2 This test method is not applicable to fuels containing
material which is produced in the course of stressing distillate
residual oil or significant amounts of components derived from
fuel under the conditions of this test and which adheres to the
non-petroleum sources.
glassware after fuel has been flushed from the system.
1.3 The values given in acceptable SI units are to be
3.1.2 filterable insolubles—material, which is produced in
regarded as the standard. The values in parentheses are for
the course of stressing distillate fuel under the conditions of
information only.
this test, which is capable of being removed from the fuel by
1.4 This standard does not purport to address all of the
filtration.This includes both material suspended in the fuel and
safety concerns, if any, associated with its use. It is the
material easily removed from the oxidation cell and oxygen
responsibility of the user of this standard to establish appro-
delivery tube with hydrocarbon solvent.
priate safety and health practices and determine the applica-
3.1.3 inherent stability—the resistance to change when
bility of regulatory limitations prior to use.
exposed to air, but in the absence of other environmental
2. Referenced Documents factors such as water, or reactive metallic surfaces and dirt.
2
3.1.4 total insolubles—sum of the adherent and filterable
2.1 ASTM Standards:
insolubles.
D 381 Test Method for Gum Content in Fuels by Jet
3.1.5 zero time—the time the first of a batch of oxidation
Evaporation
cells is placed in the heating bath.
D 943 Test Method for Oxidation Characteristics of Inhib-
3.1.5.1 Discussion—This is the time taken as the start of the
ited Mineral Oils
16 h of residence in the heating bath.
D 1193 Specification for Reagent Water
4. Summary of Test Method
4.1 A 350-mL volume of filtered middle distillate fuel is
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This test method is under the jurisdiction of Committee D02 on Petroleum
agedat95°C(203°F)for16hwhileoxygenisbubbledthrough
Products and Lubricants and is the direct responsibility of Subcommittee D02.14 on
the sample at a rate of 3 L/h.After aging, the sample is cooled
Stability and Cleanliness of Liquid Fuels.
Current edition approved Nov. 1, 2003. Published December 2003. Originally to approximately room temperature before filtering to obtain
approved in 1964. Last previous edition approved in 2003 as D 2274–03.
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
3
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the ASTM website. Ave., Philadelphia, PA 19111-5098. Attn: NPODS
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D2274–03a
FIG. 1 Oxidation Cell
the filterable insolubles quantity. Adherent insolubles are then coils of copper and steel are used, it is important that any
removed from the oxidation cell and associated glassware with residues that could contain these metals be eliminated from t
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