Abstract

ISO 26422:2011 specifies a method of determining the shear stability of polymer-containing lubricating oils, including pressure fluids, by the four-ball tester as specified in ISO 20623, but using a tapered roller bearing. The test results allow prediction of the in-service permanent viscosity loss.


General information 

  • Status
     : Withdrawn
    Publication date
     : 2011-03
  • Edition
     : 1
    Number of pages
     : 9
  • Technical Committee
     : ISO/TC 28 Petroleum and related products, fuels and lubricants from natural or synthetic sources
  • ICS
     :
    75.100 Lubricants, industrial oils and related products

Life cycle

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