ASTM D6022-01
Historical Standard: ASTM D6022-01 Standard Practice for Calculation of Permanent Shear Stability Index
SUPERSEDED (see Active link, below)
ASTM D6022
1. Scope
1.1 This practice specifies the procedure for the calculation of Permanent Shear Stability Index (PSSI) of an additive using viscosities before and after a shearing procedure.
1.2 PSSI is calculated for a single blend component and can then be used to estimate the effects of that component on finished lubricant blends.
1.3 This practice is applicable to many products and may use data from many different test methods. The calculation is presented in its most general form in order not to restrict its use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D2603 Test Method for Sonic Shear Stability of Polymer-Containing Oils
D4485 Specification for Performance of Active API Service Category Engine Oils
D5119 Test Method for Evaluation of Automotive Engine Oils in the CRC L-38 Spark-Ignition Engine
D5275 Test Method for Fuel Injector Shear Stability Test (FISST) for Polymer Containing Fluids
D5621 Test Method for Sonic Shear Stability of Hydraulic Fluids
D6278 Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus
D7109 Test Method for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus at 30 and 90 Cycles
CEC Standards
CECL45 T 93 Viscosity Shear Stability of Transmission Lubricants (KRL)Keywords
permanent shear stability index; shear; shear stability index; viscosity loss ;
ICS Code
ICS Number Code 17.060 (Measurement of volume, mass, density, viscosity)
DOI: 10.1520/D6022-01
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