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  • BS EN 60450:2004

    Current The latest, up-to-date edition.

    Measurement of the average viscometric degree of polymerization of new and aged cellulosic electrically insulating materials

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  31-10-2007

    Publisher:  British Standards Institution

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

    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms, definitions and symbols
      3.1 Terms and definitions
      3.2 Symbols
    4 Principle
    5 Apparatus and reagents
    6 Specimens
      6.1 Preparation of specimens
    7 Experimental procedure
      7.1 Measurement of water content of paper
      7.2 Determination of viscosity
    8 Test report
    Annex A (normative) Cuen solution
    Annex B (normative) Preparation of Cuen solution
    Annex C (normative) Procedure for the verification of the ratio
            c[En]/c[Cu] of the Cuen solution
    Annex D (informative) Numerical values of the product [nu].c as a
            function of nu[s] according to Martin's formula
    Annex ZA (normative) Normative references to international
             publications with their corresponding European
             publications
    Bibliography

    Abstract - (Show below) - (Hide below)

    Defines a standardized method for the determination of the average viscometric degree of polymerization (DP[nu]) of new and aged cellulosic electrically insulating materials.

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

    Committee GEL/112
    Development Note Supersedes BS 7836(1996) (08/2004) Supersedes 02/202266 DC (09/2004) Supersedes 06/30159403 DC. (10/2007)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

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

    EN 60814:1997 Insulating liquids - Oil-impregnated paper and pressboard - Determination of water by automatic coulometric Karl Fischer titration
    ASTM D 1795 : 2013 : REDLINE Standard Test Method for Intrinsic Viscosity of Cellulose
    ASTM D 4243 : 2016 : REDLINE Standard Test Method for Measurement of Average Viscometric Degree of Polymerization of New and Aged Electrical Papers and Boards
    ISO 287:2017 Paper and board — Determination of moisture content of a lot — Oven-drying method
    IEC 60814:1997 Insulating liquids - Oil-impregnated paper and pressboard - Determination of water by automatic coulometric Karl Fischer titration
    BS 6306-1:1982 Methods for determination of limiting viscosity number of cellulose in dilute solutions Cupri-ethylene-diamine (CED) method
    ISO 3105:1994 Glass capillary kinematic viscometers — Specifications and operating instructions
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