• ISO 20844:2015

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    Petroleum and related products Determination of the shear stability of polymer-containing oils using a diesel injector nozzle

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  French, English

    Published date:  09-01-2015

    Publisher:  International Organization for Standardization

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    Abstract - (Show below) - (Hide below)

    ISO 20844:2015 specifies a method to assess the resistance to shear stresses applied to mineral oils, synthetic oils, and other fluids containing polymers, when passed through a specified diesel injector nozzle. The shear stability is measured by the change in viscosity of the fluid under test, brought about by the polymer degradation during stress. Under normal circumstances, this International Standard is applied to hydraulic fluids of categories HR and HV as defined in ISO 67434[1] and specified in ISO 11158 [2], but it may also be applied to fire-resistant hydraulic fluids within categories HFA, HFB, HFC, and HFD, with modified conditions as specified in ISO 12922[3].

    No formal correlation has been established between the viscosity loss, or the absence of viscosity loss, obtained using the procedures described in this International Standard and that of oils and fluids in actual service. However, it provides standardized conditions for the evaluation of polymer stability under minimized thermal and oxidative stresses. It is normally used by manufacturers of fluids and additives, and users, as a means of ranking existing and potential formulations.

    NOTE Changes to properties other than viscosity are specified in some specifications, but these are not covered by the procedures specified in this International Standard.

    General Product Information - (Show below) - (Hide below)

    Committee ISO/TC 28
    Development Note Supersedes ISO/DIS 20844. (09/2015)
    Document Type Standard
    Publisher International Organization for Standardization
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS ISO 24254 : 2007 LUBRICANTS, INDUSTRIAL OILS AND RELATED PRODUCTS (CLASS L) - FAMILY E (INTERNAL COMBUSTION ENGINE OILS) - SPECIFICATIONS FOR OILS FOR USE IN FOUR-STROKE CYCLE MOTORCYCLE GASOLINE ENGINES AND ASSOCIATED DRIVETRAINS (CATEGORIES EMA AND EMB)
    BS ISO 26422 : 2014 PETROLEUM AND RELATED PRODUCTS - DETERMINATION OF SHEAR STABILITY OF LUBRICATING OILS CONTAINING POLYMERS - METHOD USING A TAPERED ROLLER BEARING
    09/30196499 DC : 0 BS ISO 26422 - PETROLEUM AND RELATED PRODUCTS - DETERMINATION OF SHEAR STABILITY OF LUBRICATING OILS CONTAINING POLYMERS - METHOD USING A TAPERED ROLLER BEARING
    08/30178054 DC : DRAFT FEB 2008 BS EN ISO 12922 - LUBRICANTS, INDUSTRIAL OILS AND RELATED PRODUCTS (CLASS L) - FAMILY H (HYDRAULIC SYSTEMS) - SPECIFICATIONS FOR CATEGORIES HFAE, HFAS, HFB, HFC, HFDR AND HFDU
    15/30310648 DC : 0 BS ISO 15380 - LUBRICANTS, INDUSTRIAL OILS AND RELATED PRODUCTS (CLASS L) - FAMILY H (HYDRAULIC SYSTEMS) - SPECIFICATIONS FOR HYDRAULIC FLUIDS IN CATEGORIES HETG, HEPG, HEES AND HEPR
    04/30127170 DC : DRAFT DEC 2004 ISO 24254 - LUBRICANTS, INDUSTRIAL OILS AND RELATED PRODUCTS (CLASS L) - FAMILY E (INTERNAL COMBUSTION ENGINE OILS) - SPECIFICATIONS FOR OILS FOR USE IN FOUR-STROKE CYCLE MOTORCYCLE GASOLINE ENGINES AND ASSOCIATED DRIVETRAINS
    14/30290161 DC : 0 BS ISO 26422 - PETROLEUM AND RELATED PRODUCTS - DETERMINATION OF SHEAR STABILITY OF LUBRICATING OILS CONTAINING POLYMERS - METHOD USING A TAPERED ROLLER BEARING
    DIN ISO 15380:2004-05 LUBRICANTS, INDUSTRIAL OILS AND RELATED PRODUCTS (CLASS L) - FAMILY H (HYDRAULIC SYSTEMS) - SPECIFICATIONS FOR CATEGORIES HETG, HEPG, HEES AND HEPR
    BS ISO 15380:2016 Lubricants, industrial oils and related products (class L). Family H (Hydraulic systems). Specifications for hydraulic fluids in categories HETG, HEPG, HEES and HEPR
    ISO 15380:2016 Lubricants, industrial oils and related products (class L) Family H (Hydraulic systems) Specifications for hydraulic fluids in categories HETG, HEPG, HEES and HEPR
    ISO 26422:2014 Petroleum and related products Determination of shear stability of lubricating oils containing polymers Method using a tapered roller bearing
    ISO 24254:2007 Lubricants, industrial oils and related products (class L) Family E (internal combustion engine oils) Specifications for oils for use in four-stroke cycle motorcycle gasoline engines and associated drivetrains (categories EMA and EMB)
    DIN EN ISO 12922:2013-04 LUBRICANTS, INDUSTRIAL OILS AND RELATED PRODUCTS (CLASS L) - FAMILY H (HYDRAULIC SYSTEMS) - SPECIFICATIONS FOR HYDRAULIC FLUIDS IN CATEGORIES HFAE, HFAS, HFB, HFC, HFDR AND HFDU (ISO 12922:2012)
    ISO 12922:2012 Lubricants, industrial oils and related products (class L) Family H (Hydraulic systems) Specifications for hydraulic fluids in categories HFAE, HFAS, HFB, HFC, HFDR and HFDU
    EN ISO 12922 : 2012 LUBRICANTS, INDUSTRIAL OILS AND RELATED PRODUCTS (CLASS L) - FAMILY H (HYDRAULIC SYSTEMS) - SPECIFICATIONS FOR HYDRAULIC FLUIDS IN CATEGORIES HFAE, HFAS, HFB, HFC, HFDR AND HFDU (ISO 12922:2012)
    UNE-EN ISO 12922:2013 Lubricants, industrial oils and related products (class L) - Family H (Hydraulic systems) - Specifications for hydraulic fluids in categories HFAE, HFAS, HFB, HFC, HFDR and HFDU (ISO 12922:2012)
    BS EN ISO 12922:2012 LUBRICANTS, INDUSTRIAL OILS AND RELATED PRODUCTS (CLASS L) - FAMILY H (HYDRAULIC SYSTEMS) - SPECIFICATIONS FOR HYDRAULIC FLUIDS IN CATEGORIES HFAE, HFAS, HFB, HFC, HFDR AND HFDU
    I.S. EN ISO 12922:2012 LUBRICANTS, INDUSTRIAL OILS AND RELATED PRODUCTS (CLASS L) - FAMILY H (HYDRAULIC SYSTEMS) - SPECIFICATIONS FOR HYDRAULIC FLUIDS IN CATEGORIES HFAE, HFAS, HFB, HFC, HFDR AND HFDU (ISO 12922:2012)
    UNI EN ISO 12922 : 2013 LUBRICANTS, INDUSTRIAL OILS AND RELATED PRODUCTS (CLASS L) - FAMILY H (HYDRAULIC SYSTEMS) - SPECIFICATIONS FOR HYDRAULIC FLUIDS IN CATEGORIES HFAE, HFAS, HFB, HFC, HFDR AND HFDU

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 3170:2004 Petroleum liquids Manual sampling
    ISO 12922:2012 Lubricants, industrial oils and related products (class L) Family H (Hydraulic systems) Specifications for hydraulic fluids in categories HFAE, HFAS, HFB, HFC, HFDR and HFDU
    ISO 4113:2010 Road vehicles Calibration fluids for diesel injection equipment
    ISO 11158:2009 Lubricants, industrial oils and related products (class L) Family H (hydraulic systems) Specifications for categories HH, HL, HM, HV and HG
    ISO 6743-4:2015 Lubricants, industrial oils and related products (class L) Classification Part 4: Family H (Hydraulic systems)
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