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ASTM D6022-01

Historical Revision

Standard Practice for Calculation of Permanent Shear Stability Index

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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.


SDO ASTM: ASTM International
Document Number D6022
Publication Date Nov. 10, 2001
Language en - English
Page Count 3
Revision Level 01
Supercedes
Committee D02.07
Publish Date Document Id Type View
Dec. 1, 2019 D6022-19 Revision
May 1, 2006 D6022-06 Revision
Nov. 10, 2001 D6022-01 Revision
Nov. 1, 2012 D6022-06R12 Reaffirmation