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ISO 26422:2011Withdrawn

Petroleum and related products — Determination of shear stability of lubricating oils containing polymers — Method using a tapered roller bearing

Pétrole et produits connexes — Détermination de la stabilité au cisaillement des huiles lubrifiantes contenant des polymères — Méthode avec roulement à rouleaux coniques

This edition has been replaced by ISO 26422:2014.

Abstract / scope

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.

Life cycle

Replaced by

ISO 26422:2014PublishedPetroleum and related products — Determination of shear stability of lubricating oils containing polymers — Method using a tapered roller bearingInternational Standard · Published 4 Dec 2014 · ISO/TC 28