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  • DIN ISO 6618 E : 2015

    Current The latest, up-to-date edition.

    PETROLEUM PRODUCTS AND LUBRICANTS - DETERMINATION OF ACID OR BASE NUMBER - COLOUR-INDICATOR TITRATION METHOD (ISO 6618:1997)

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2015

    Publisher:  German Institute for Standardisation (Deutsches Institut für Normung)

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    Table of Contents - (Show below) - (Hide below)

    National foreword
    National Annex NA (informative) - Bibliography
    National Annex NB (informative) - Guidance on using
                      Annex B - Determination of pHr-range
                      of p-naphtholbenzein indicator
    1 Scope
    2 Normative references
    3 Definitions
    4 Principle
    5 Reagents and materials
    6 Apparatus
    7 Preparation of used oil sample
    8 Determination of acid number
    9 Determination of base number
    10 Determination of strong acid number
    11 Calculation
    12 Expression of results
    13 Precision
    14 Test report
    Annex A (normative) - Specification for p-naphtholbenzein
    Annex B (normative) - Determination of pHr range of
            p-naphtholbenzein indicator

    Abstract - (Show below) - (Hide below)

    Defines a colour-indicator titration method for the determination of acidic or basic constituents in petroleum products and lubricants soluble in mixtures of toluene and propan-2-ol.

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

    Development Note Supersedes DIN 51558-1 E. (08/2015)
    Document Type Standard
    Publisher German Institute for Standardisation (Deutsches Institut für Normung)
    Status Current
    Supersedes

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

    ISO 3771:2011 Petroleum products — Determination of base number — Perchloric acid potentiometric titration method
    DIN 51639-1:2014-11 TESTING OF LUBRICANTS - TEST METHODS - PART 1: DETERMINATION OF TOTAL BASE NUMBER
    ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
    ISO 6619:1988 Petroleum products and lubricants — Neutralization number — Potentiometric titration method
    DIN ISO 3696:1991-06 WATER FOR ANALYTICAL LABORATORY USE - SPECIFICATION AND TEST METHODS
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