ASTM D6795-10
(Test Method)Standard Test Method for Measuring the Effect on Filterability of Engine Oils After Treatment with Water and Dry Ice and a Short (30-min) Heating Time
Standard Test Method for Measuring the Effect on Filterability of Engine Oils After Treatment with Water and Dry Ice and a Short (30-min) Heating Time
SIGNIFICANCE AND USE
It is normal for some of the combustion products of an internal combustion engine to penetrate into the engine lubricant and be retained in it.
When an engine is run for a period of time and then stored over a long period of time, the by-products of combustion may be retained in the oil in a liquefied state.
Under these circumstances, precipitates can form that impair the filterability of the oil the next time the engine is run.
This test method subjects the test oil and the new oil to the same treatments such that the loss of filterability can be determined.
Reference oils, on which the data obtained by this test method is known, are available.
This test method requires that a reference oil also be tested and results reported. Two oils are available, one known to give a low and one known to give a high data value for this test method.
Note 1—When the new oil test results are to be offered as candidate oil test results for a specification, such as Specification D4485, the specification will state maximum allowable loss of filterability (flow reduction) of the test oil as compared to the new oil.
SCOPE
1.1 This test method covers the determination of the tendency of an oil to form a precipitate that can plug an oil filter. It simulates a problem that may be encountered in a new engine run for a short period of time, followed by a long period of storage with some water in the oil.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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.
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Designation: D6795 − 10
StandardTest Method for
Measuring the Effect on Filterability of Engine Oils After
Treatment with Water and Dry Ice and a Short (30-min)
1
Heating Time
This standard is issued under the fixed designation D6795; 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.
INTRODUCTION
Any properly equipped laboratory, without outside assistance, can use the procedure described in
2
this test method. However, theASTM Test Monitoring Center (TMC) provides reference oils and an
assessmentofthetestresultsobtainedonthoseoilsbythelaboratory(seeAnnexA1).Bythesemeans,
the laboratory will know whether their use of the test method gives results statistically similar to those
obtainedbyotherlaboratories.Furthermore,variousagenciesrequirethatalaboratoryutilizetheTMC
services in seeking qualification of oils against specifications. For example, the U.S. Army imposes
such a requirement in connection with several Army engine lubricating oil specifications.
Accordingly, this test method is written for use by laboratories that utilize the TMC services.
Laboratories that choose not to use those services may simply ignore those portions of the test method
that refer to the TMC.
This test method may be modified by means of information letters issued by the TMC. In addition,
the TMC may issue supplementary memoranda related to the test method (see Annex A1).
3
For other information, refer to the research report of this test method.
1. Scope 2. Referenced Documents
4
1.1 This test method covers the determination of the ten- 2.1 ASTM Standards:
dency of an oil to form a precipitate that can plug an oil filter. D1193 Specification for Reagent Water
Itsimulatesaproblemthatmaybeencounteredinanewengine D4057 Practice for Manual Sampling of Petroleum and
run for a short period of time, followed by a long period of Petroleum Products
storage with some water in the oil. D4485 Specification for Performance of Active API Service
Category Engine Oils
1.2 The values stated in SI units are to be regarded as
D5844 Test Method for Evaluation of Automotive Engine
standard. No other units of measurement are included in this
Oils for Inhibition of Rusting (Sequence IID) (Withdrawn
standard.
5
2003)
1.3 This standard does not purport to address all of the
D5862 Test Method for Evaluation of Engine Oils in Two-
safety concerns, if any, associated with its use. It is the
Stroke Cycle Turbo-Supercharged 6V92TADiesel Engine
responsibility of the user of this standard to establish appro- 5
(Withdrawn 2009)
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
3. Terminology
3.1 Definitions:
1
This test method is under the jurisdiction of ASTM Committee D02 on
3.1.1 calibrate, v—todeterminetheindicationoroutputofa
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
device (e.g., thermometer, manometer, engine) with respect to
D02.B0 on Automotive Lubricants.
Current edition approved May 1, 2010. Published June 2010. Originally
that of a standard.
approved in 2002. Last previous edition approved in 2008 as D6795–08. DOI:
10.1520/D6795-10.
2 4
ASTM Test Monitoring Center, 6555 Penn Ave., Pittsburgh, PA 152006-4489. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
This test method is supplemented by Information Letters and Memoranda issued by contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
theASTM Test Monitoring Center. Users of this test method can contact theASTM Standards volume information, refer to the standard’s Document Summary page on
Test Monitoring Center to obtain the most recent of these. the ASTM website.
3 5
Supporting data have been filed at ASTM International Headquarters and may The last approved version of this historical standard is referenced on
be obtained by requesting Research Report RR:D02-1529. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6795 − 10
3.1.2 calibration test, n—a test, using a coded reference oil, 5.5 Reference oils, on which the data obtained by this test
conducted as specified in the test method. method is known, are available.
3.1.2.1 Discussion—The test result is used to determine the
5.6 This test method requires that a reference oil also be
suitability of the testing facility/laboratory to conduct such
tested and results reported. Two oils are available, one known
tests on non-reference oils.
to give a low and one known to giv
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D6795–08 Designation:D6795–10
Standard Test Method for
Measuring the Effect on Filterability of Engine Oils After
Treatment with Water and Dry Ice and a Short (30-min)
1
Heating Time
This standard is issued under the fixed designation D6795; 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.
INTRODUCTION
Any properly equipped laboratory, without outside assistance, can use the procedure described in
2
this test method. However, theASTM Test Monitoring Center (TMC) provides reference oils and an
assessmentofthetestresultsobtainedonthoseoilsbythelaboratory(seeAnnexA1).Bythesemeans,
the laboratory will know whether their use of the test method gives results statistically similar to those
obtainedbyotherlaboratories.Furthermore,variousagenciesrequirethatalaboratoryutilizetheTMC
services in seeking qualification of oils against specifications. For example, the U.S. Army imposes
such a requirement in connection with several Army engine lubricating oil specifications.
Accordingly, this test method is written for use by laboratories that utilize the TMC services.
Laboratories that choose not to use those services may simply ignore those portions of the test method
that refer to the TMC.
This test method may be modified by means of information letters issued by the TMC. In addition,
the TMC may issue supplementary memoranda related to the test method (see Annex A1).
3
For other information, refer to the research report of this test method.
1. Scope
1.1 This test method covers the determination of the tendency of an oil to form a precipitate that can plug an oil filter. It
simulates a problem that may be encountered in a new engine run for a short period of time, followed by a long period of storage
with some water in the oil.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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.
2. Referenced Documents
4
2.1 ASTM Standards:
D1193 Specification for Reagent Water
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4485 Specification for Performance of Engine Oils
D5844 Test Method for Evaluation of Automotive Engine Oils for Inhibition of Rusting (Sequence IID)
D5862 Test Method for Evaluation of Engine Oils in Two-Stroke Cycle Turbo-Supercharged 6V92TA Diesel Engine
E344Terminology Relating to Thermometry and Hydrometry Test Method for Evaluation of Engine Oils in Two-Stroke Cycle
Turbo-Supercharged 6V92TA Diesel Engine
1
This test method is under the jurisdiction ofASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.B0 on
Automotive Lubricants.
Current edition approved Dec.May 1, 2008.2010. Published January 2009.June 2010. Originally approved in 2002. Last previous edition approved in 20072008 as
D6795–02(2007).D6795–08. DOI: 10.1520/D6795-108.
2
ASTM Test Monitoring Center, 6555 Penn Ave., Pittsburgh, PA 152006-4489. This test method is supplemented by Information Letters and Memoranda issued by the
ASTM Test Monitoring Center. Users of this test method can contact the ASTM Test Monitoring Center to obtain the most recent of these.
3
Supporting data have been filed at ASTM International Headquarters and may be obtained by requesting Research Report RR:D02-1529.
4
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D6795–10
3. Terminology
3.1 Definitions:
3.1.1 calibrate, v—to determine the indication or output of a measuring device (e.g., thermometer, manometer, engine) with
respect to that of a standard. E344
3.1.2 calibration test, n—a test, using a coded reference oil, conducted as specified in the test method.
3.1.2.1 Discussion—The test result
...
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