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  • BS 2782-7 Method 733A:1991

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Methods of testing plastics. Rheological properties Determination of viscosity number of polyamides

    Available format(s):  Hardcopy, PDF

    Superseded date:  15-07-1996

    Language(s):  English

    Published date:  29-11-1991

    Publisher:  British Standards Institution

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

    National foreword
    Committees responsible
    Method
    1 Scope and field of application
    2 References
    3 Definition
    4 Principle
    5 Reagents
    6 Apparatus
    7 Preparation of test sample
    8 Calculation of mass of test portion
    9 Selection of solvent
    10 Procedure
    11 Expression of results
    12 Repeatability and reproducibility
    13 Interconversion of the viscosity numbers determined
        in different solvents
    14 Test report
    Figures
    1 Ubbelohde viscometer
    2 Calibration lines for the interconversion of the
        viscosity numbers of PA 6, 66, 69, and 610 in 90 %
        (m/m) formic acid solution and in 96 % (m/m)
        sulfuric acid solution
    3 Calibration lines for the interconversion of the
        viscosity numbers of PA 612 and 6(3)T in 96 % (m/m)
        sulfuric acid solution and in m-cresol

    Abstract - (Show below) - (Hide below)

    Method for the determination of dilute solutions in certain specified solvents.

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

    Committee PRI/21
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

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

    BS 7029-2:1993 Method of specifying thermoplastics injection mouldings Additional requirements for polycarbonate, polyamide and polyethylene mouldings

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

    ISO 599:1985 Plastics Polyamide homopolymers Determination of matter extractable by boiling methanol
    ISO 1628-1:2009 Plastics Determination of the viscosity of polymers in dilute solution using capillary viscometers Part 1: General principles
    ISO 1874-1:2010 Plastics Polyamide (PA) moulding and extrusion materials Part 1: Designation system and basis for specification
    ISO 1042:1998 Laboratory glassware One-mark volumetric flasks
    ISO 960:1988 Plastics — Polyamides (PA) — Determination of water content
    ISO 3105:1994 Glass capillary kinematic viscometers — Specifications and operating instructions
    ISO 3451-4:1998 Plastics — Determination of ash — Part 4: Polyamides
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