• BS 2782-7:Method 722B:1996

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    Methods of testing plastics. Rheological properties Determination of the fluidity of plastics using capillary and slit-die rheometers

    Available format(s):  Hardcopy, PDF

    Superseded date:  23-03-2005

    Language(s):  English

    Published date:  15-07-1996

    Publisher:  British Standards Institution

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

    Committees responsible
    National foreword
    Method
    1 Scope
    2 Normative references
    3 Definitions
    4 General principles
    5 Apparatus
    6 Sampling
    7 Procedure
    8 Expression of results
    9 Precision
    10 Test report
    Tables
    1 Designation of test methods
    2 Maximum allowable temperature differences as a function of
         distance and as a function of time
    3 Typical test temperatures
    Figures
    1 Typical example of an extrusion rheometer used with
         capillary die
    2 Typical example of an extrusion rheometer used with a slit
         die
    3 Application of the Bagley correction method
    4 Schematic Bagley plot for capillary dies
    5 Schematic Bagley plot for slit dies
    A.1 Shear-rate ratio versus thickness-to-width ratio H/B
    Annexes
    A (informative) Method of correcting for the influence of H/B
         on the apparent shear rate
    B (informative) Measurement errors
    C (informative) Effect of flow conditions on measurement
         accuracy
    D (informative) Bibliography

    Abstract - (Show below) - (Hide below)

    Gives methods to determine fluidity of plastic melts subjected to shear stresses at rates and temperatures approximating to those arising in plastic processing.

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

    Committee PRI/21
    Development Note DRAFT FOR COMMENT 92/45392 DC
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

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

    ISO 6507-1:2005 Metallic materials Vickers hardness test Part 1: Test method
    ISO 468:1982 Surface roughness — Parameters, their values and general rules for specifying requirements
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