ASTM D6278-07
(Test Method)Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus
Standard Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus
SIGNIFICANCE AND USE
This test method evaluates the percent viscosity loss for polymer-containing fluids resulting from polymer degradation in the high shear nozzle device. Thermal or oxidative effects are minimized.
This test method is used for quality control purposes by manufacturers of polymeric lubricant additives and their customers.
This test method is not intended to predict viscosity loss in field service in different field equipment under widely varying operating conditions, which may cause lubricant viscosity to change due to thermal and oxidative changes as well as by the mechanical shearing of polymer. However, when the field service conditions, primarily or exclusively, result in the degradation of polymer by mechanical shearing, there may be a correlation between the results from this test method and results from the field.
SCOPE
1.1 This test method covers the evaluation of the shear stability of polymer-containing fluids. The test method measures the percent viscosity loss at 100°C of polymer-containing fluids when evaluated by a diesel injector apparatus procedure that uses European diesel injector test equipment. The viscosity loss reflects polymer degradation due to shear at the nozzle.
Note 1—Test Method D 2603 has been used for similar evaluation of shear stability; limitations are as indicated in the significance statement. No detailed attempt has been undertaken to correlate the results of this test method with those of the sonic shear test method.
Note 2—This test method uses test apparatus as defined in CEC L-14-A-93. This test method differs from CEC-L-14-A-93 in the period of time required for calibration.
Note 3—Test Method D 5275 also shears oils in a diesel injector apparatus but may give different results.
Note 4—This test method has different calibration and operational requirements than withdrawn Test Method D 3945.
Note 5—Test Method D 7109 is a similar procedure that measures shear stability at both 30 and 90 injection cycles. This test method uses 30 injection cycles only.
1.2 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. Specific precautionary statements are given in Section 8.
General Information
Relations
Buy Standard
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
Designation: D6278 − 07
StandardTest Method for
Shear Stability of Polymer Containing Fluids Using a
1
European Diesel Injector Apparatus
This standard is issued under the fixed designation D6278; 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* D5275 Test Method for Fuel Injector Shear Stability Test
(FISST) for Polymer Containing Fluids
1.1 This test method covers the evaluation of the shear
D6299 Practice for Applying Statistical Quality Assurance
stability of polymer-containing fluids. The test method mea-
and Control Charting Techniques to Evaluate Analytical
suresthepercentviscositylossat100°Cofpolymer-containing
Measurement System Performance
fluids when evaluated by a diesel injector apparatus procedure
D7109 Test Method for Shear Stability of Polymer Contain-
thatusesEuropeandieselinjectortestequipment.Theviscosity
ing Fluids Using a European Diesel Injector Apparatus at
loss reflects polymer degradation due to shear at the nozzle.
30 and 90 Cycles
NOTE 1—Test Method D2603 has been used for similar evaluation of
3
shear stability; limitations are as indicated in the significance statement. 2.2 Coordination European Council (CEC) Standard:
Nodetailedattempthasbeenundertakentocorrelatetheresultsofthistest
CEC L-14-A-93 Evaluation of the Mechanical Shear Sta-
method with those of the sonic shear test method.
bility of Lubricating Oils Containing Polymers
NOTE 2—This test method uses test apparatus as defined in CEC
L-14-A-93.This test method differs from CEC-L-14-A-93 in the period of
time required for calibration. 3. Terminology
NOTE 3—Test Method D5275 also shears oils in a diesel injector
3.1 Definitions:
apparatus but may give different results.
NOTE 4—This test method has different calibration and operational
3.1.1 kinematic viscosity, n—a measure of the resistance to
requirements than withdrawn Test Method D3945.
flow of a fluid under gravity.
NOTE5—TestMethodD7109isasimilarprocedurethatmeasuresshear
stability at both 30 and 90 injection cycles. This test method uses 30 3.2 Definitions of Terms Specific to This Standard:
injection cycles only.
3.2.1 calibration pressure, n—the recorded gauge pressure
1.2 This standard does not purport to address all of the
when calibration fluid RL34 or RL233 undergoes a viscosity
2
safety concerns, if any, associated with its use. It is the
loss of 2.75 to 2.85 mm /s when the recorded gauge pressure is
responsibility of the user of this standard to establish appro-
within the range of 13.0 to 18.0 MPa.
priate safety and health practices and determine the applica-
3.2.2 viscosityloss,n—thelossinviscositydeterminedfrom
bility of regulatory limitations prior to use. Specific precau-
the difference in kinematic viscosity at 100°C of pre-sheared
tionary statements are given in Section 8.
and post-sheared fluid.
2. Referenced Documents
3.2.3 percent viscosity loss, n—viscosity loss, as defined in
2
2.1 ASTM Standards:
3.2.2, divided by the pre-sheared viscosity, and reported as a
D445 Test Method for Kinematic Viscosity of Transparent
percent.
and Opaque Liquids (and Calculation of Dynamic Viscos-
ity)
4. Summary of Test Method
D2603 Test Method for Sonic Shear Stability of Polymer-
Containing Oils 4.1 A polymer-containing fluid is passed through a diesel
injector nozzle at a shear rate that causes polymer molecules to
1 degrade. The resultant degradation reduces the kinematic
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
viscosity of the fluid under test. The percent viscosity loss is a
D02.07 on Flow Properties.
measure of the mechanical shear stability of the polymer-
Current edition approved Dec. 1, 2007. Published January 2008. Originally
containing fluid.
approved in 1998. Last previous edition approved in 2002 as D6278–02. DOI:
10.1520/D6278-07.
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 th
Standards volume information, refer to the standard’s Document Summary page on Available from CEC Secretariat, Madou Plaza, 25 floor, Place Madou 1,
the ASTM website. B-1210 Brussels, Belgium.
*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
1
---------------------- Page: 1 ----------------------
D6278 − 07
5. Significance and Use chamber,(2)inFig.A1.1,isdefinedinmoredetailinFig.A1.3.
To minimize foam generation, the spray chamber i
...
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.
An American National Standard
Designation:D6278–02 Designation:D6278–07
Standard Test Method for
Shear Stability of Polymer Containing Fluids Using a
1
European Diesel Injector Apparatus
This standard is issued under the fixed designation D 6278; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This test method covers the evaluation of the shear stability of polymer-containing fluids. The test method measures the
percent viscosity loss at 100°C of polymer-containing fluids when evaluated by a diesel injector apparatus procedure that uses
European diesel injector test equipment. The viscosity loss reflects polymer degradation due to shear at the nozzle.
NOTE 1—Test Method D 2603 has been used for similar evaluation of shear stability; limitations are as indicated in the significance statement. No
detailed attempt has been undertaken to correlate the results of this test method with those of the sonic shear test method.
NOTE 2—This test method uses test apparatus as defined in CEC L-14-A-93. This test method differs from CEC-L-14-A-93 in the period of time
required for calibration.
NOTE 3—Test Method D 5275 also shears oils in a diesel injector apparatus but may give different results.
NOTE4—ThistestmethodhasdifferentcalibrationandoperationalrequirementsthanTestMethodD3945. 4—Thistestmethodhasdifferentcalibration
and operational requirements than withdrawn Test Method D 3945.
NOTE 5—Test Method D 7109 is a similar procedure that measures shear stability at both 30 and 90 injection cycles.This test method uses 30 injection
cycles only.
1.2 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. Specific precautionary statements are given in Section 8.
2. Referenced Documents
2
2.1 ASTM Standards:
D 445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and the Calculation of Dynamic Viscosity)
2
D 2603Test Method for Sonic Shear Stability of Polymer-Containing Oils
D3945Test Method for Shear Stability of Polymer-Containing Fluids Using a Diesel Injector Nozzle Test Method for Sonic
Shear Stability of Polymer-Containing Oils
D 5275 Test Method for Fuel Injector Shear Stability Test (FISST) for Polymer Containing Fluids
D 6299 Practice for Applying Statistical Quality Assurance Techniques to Evaluate Analytical Measurement System
Performance
D 7109 Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus at 30 and
90 Cycles
3
2.2 Coordination European Council (CEC) Standard:
CEC L-14-A-93 Evaluation of the Mechanical Shear Stability of Lubricating Oils Containing Polymers
3. Terminology
3.1 Definitions:
3.1.1 kinematic viscosity, n—a measure of the resistance to flow of a fluid under gravity.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 calibration pressure, n—the recorded gauge pressure when calibration fluid RL34 or RL233 undergoes a viscosity loss
2
of 2.75 to 2.85 mm /s when the recorded gauge pressure is within the range of 13.0 to 18.0 MPa.
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.07 on
Flow Properties.
Current edition approved April 10, 2002. Published June 2002. Originally published as D6278–98. Last previous edition D6278–98.
Current edition approved Dec. 1, 2007. Published January 2008. Originally approved in 1998. Last previous edition approved in 2002 as D 6278–02.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 05.01.volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Annual Book of ASTM Standards, Vol 05.02.
3 th
Available from CEC Secretariat, Madou Plaza, 25 floor, Place Madou 1, B-1210 Brussels, Belgium.
*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.
1
---------------------- Page: 1 ----------------------
D6278–07
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.