ASTM D5275-20
(Test Method)Standard Test Method for Fuel Injector Shear Stability Test (FISST) for Polymer Containing Fluids
Standard Test Method for Fuel Injector Shear Stability Test (FISST) for Polymer Containing Fluids
SIGNIFICANCE AND USE
4.1 This test method evaluates the percent viscosity loss for polymer-containing fluids resulting from polymer degradation in the high shear nozzle device. Minimum interference from thermal or oxidative effects are anticipated.
4.2 This test method is not intended to predict viscosity loss in field service for different polymer classes or for different field equipment. Some correlation for a specific polymer type in specific field equipment can be possible.
SCOPE
1.1 This test method covers the measurement of the percent viscosity loss at 100 °C of polymer-containing fluids using fuel injector shear stability test (FISST) equipment. The viscosity loss reflects polymer degradation due to shear at the nozzle.
Note 1: Test Method D2603 has been used for similar evaluation of this property. It has many of the same limitations as indicated in the significance statement. No detailed attempt has been undertaken to correlate the results by the sonic and the diesel injector methods.
Note 2: This test method was originally published as Procedure B of Test Methods D3945. The FISST method was made a separate test method after tests of a series of polymer-containing fluids showed that Procedures A and B of Test Methods D3945 often give different results.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.2.1 Exception—PSI is mentioned in parentheses for instruments that have only PSI gauges. Horsepower, HP, is listed in parentheses since the motor labels display this value.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 7.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D5275 − 20
Standard Test Method for
Fuel Injector Shear Stability Test (FISST) for Polymer
1
Containing Fluids
This standard is issued under the fixed designation D5275; 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* 2. Referenced Documents
2
1.1 This test method covers the measurement of the percent 2.1 ASTM Standards:
viscositylossat100 °Cofpolymer-containingfluidsusingfuel D445 Test Method for Kinematic Viscosity of Transparent
injector shear stability test (FISST) equipment. The viscosity and Opaque Liquids (and Calculation of Dynamic Viscos-
loss reflects polymer degradation due to shear at the nozzle. ity)
D2603 Test Method for Sonic Shear Stability of Polymer-
NOTE 1—Test Method D2603 has been used for similar evaluation of
Containing Oils
this property. It has many of the same limitations as indicated in the
D3945 Test Method for Shear Stability of Polymer-
significance statement. No detailed attempt has been undertaken to
correlate the results by the sonic and the diesel injector methods.
Containing Fluids Using a Diesel Injector Nozzle (With-
3
NOTE 2—This test method was originally published as Procedure B of
drawn 1998)
TestMethodsD3945.TheFISSTmethodwasmadeaseparatetestmethod
D7042 Test Method for Dynamic Viscosity and Density of
after tests of a series of polymer-containing fluids showed that Procedures
Liquids by Stabinger Viscometer (and the Calculation of
A and B of Test Methods D3945 often give different results.
Kinematic Viscosity)
1.2 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this
3. Summary of Test Method
standard.
3.1 The polymer-containing fluid is passed through a diesel
1.2.1 Exception—PSI is mentioned in parentheses for in-
injector nozzle at a shear rate that causes the less shear stable
struments that have only PSI gauges. Horsepower, HP, is listed
polymer molecules to degrade. The resultant degradation
in parentheses since the motor labels display this value.
reduces the kinematic viscosity of the fluid under test. The
1.3 This standard does not purport to address all of the
reduction in kinematic viscosity, reported as percent loss of the
safety concerns, if any, associated with its use. It is the
initial kinematic viscosity, is a measure of the shear stability of
responsibility of the user of this standard to establish appro-
the polymer-containing fluid.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
4. Significance and Use
Specific precautionary statements are given in Section 7.
4.1 This test method evaluates the percent viscosity loss for
1.4 This international standard was developed in accor-
polymer-containing fluids resulting from polymer degradation
dance with internationally recognized principles on standard-
in the high shear nozzle device. Minimum interference from
ization established in the Decision on Principles for the
thermal or oxidative effects are anticipated.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
4.2 This test method is not intended to predict viscosity loss
Barriers to Trade (TBT) Committee.
in field service for different polymer classes or for different
1 2
This test method is under the jurisdiction of ASTM Committee D02 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Subcommittee D02.07 on Flow Properties. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved May 1, 2020. Published May 2020. Originally the ASTM website.
3
approved in 1992. Last previous edition approved in 2017 as D5275 – 17. DOI: The last approved version of this historical standard is referenced on
10.1520/D5275-20. www.astm.org.
*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 ----------------------
D5275 − 20
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field equipment. Some correlation for a specific polymer type 9.2 Set the delivery rate of the pump to 534 cm 6
3
in specific field equipment can be possible. 12 cm /min by the procedur
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM 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: D5275 − 17 D5275 − 20
Standard Test Method for
Fuel Injector Shear Stability Test (FISST) for Polymer
1
Containing Fluids
This standard is issued under the fixed designation D5275; 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*
1.1 This test method covers the measurement of the percent viscosity loss at 100 °C of polymer-containing fluids using fuel
injector shear stability test (FISST) equipment. The viscosity loss reflects polymer degradation due to shear at the nozzle.
NOTE 1—Test Method D2603 has been used for similar evaluation of this property. It has many of the same limitations as indicated in the significance
statement. No detailed attempt has been undertaken to correlate the results by the sonic and the diesel injector methods.
NOTE 2—This test method was originally published as Procedure B of Test Methods D3945. The FISST method was made a separate test method after
tests of a series of polymer-containing fluids showed that Procedures A and B of Test Methods D3945 often give different results.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.2.1 Exception—PSI is mentioned in parentheses for instruments that have only PSI gauges. Horsepower, HP, is listed in
parentheses since the motor labels display this value.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 7.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
D2603 Test Method for Sonic Shear Stability of Polymer-Containing Oils
D3945 Test Method for SheerShear Stability of Ploymer-ContainingPolymer-Containing Fluids Using a Diesel Injector Nozzle
3
(Withdrawn 1998)
D7042 Test Method for Dynamic Viscosity and Density of Liquids by Stabinger Viscometer (and the Calculation of Kinematic
Viscosity)
3. Summary of Test Method
3.1 The polymer-containing fluid is passed through a diesel injector nozzle at a shear rate that causes the less shear stable
polymer molecules to degrade. The resultant degradation reduces the kinematic viscosity of the fluid under test. The reduction in
kinematic viscosity, reported as percent loss of the initial kinematic viscosity, is a measure of the shear stability of the
polymer-containing fluid.
4. Significance and Use
4.1 This test method evaluates the percent viscosity loss for polymer-containing fluids resulting from polymer degradation in
the high shear nozzle device. Minimum interference from thermal or oxidative effects are anticipated.
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.07 on Flow Properties.
Current edition approved May 1, 2017May 1, 2020. Published May 2017May 2020. Originally approved in 1992. Last previous edition approved in 20162017 as
D5275 – 16.D5275 – 17. DOI: 10.1520/D5275-17.10.1520/D5275-20.
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
*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 ----------------------
D5275 − 20
4.2 This test method is not intended to predict viscosity loss in field service for diffe
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