ASTM D5275-20
Standard Test Method for Fuel Injector Shear Stability Test (FISST) for Polymer Containing Fluids

Standard No.

ASTM D5275-20

Release Date

2020

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D5275-20

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.

ASTM D5275-20 Referenced Document

• ASTM D2603 Test Method for Sonic Shear Stability of Polymer-Containing Oils
• ASTM D3945 
• ASTM D445 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (the Calculation of Dynamic Viscosity)
• ASTM D7042 Standard Test Method for Dynamic Viscosity and Density of Liquids by Stabinger Viscometer (and the Calculation of Kinematic Viscosity)*， 2021-11-01 Update

ASTM D5275-20 history

• 2020 ASTM D5275-20 Standard Test Method for Fuel Injector Shear Stability Test (FISST) for Polymer Containing Fluids
• 2017 ASTM D5275-17 Standard Test Method for Fuel Injector Shear Stability Test (FISST) for Polymer Containing Fluids
• 2016 ASTM D5275-16 Standard Test Method for Fuel Injector Shear Stability Test (FISST) for Polymer Containing Fluids
• 2011 ASTM D5275-11 Standard Test Method for Fuel Injector Shear Stability Test (FISST) for Polymer Containing Fluids
• 2003 ASTM D5275-03 Standard Test Method for Fuel Injector Shear Stability Test (FISST) for Polymer Containing Fluids
• 1992 ASTM D5275-92(1998)e1 Standard Test Method for Fuel Injector Shear Stability Test (FISST) for Polymer Containing Fluids