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  • BS 6997:1990

    Current The latest, up-to-date edition.

    Specification for elastomeric toroidal sealing rings (\'O\'-rings) manufactured from acrylonitrile-butadiene rubbers complying with BS 6996

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  31-08-1990

    Publisher:  British Standards Institution

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

    Foreword
    Committees responsible
    Specification
    1. Scope
    2. Dimensions
    3. Surface imperfections
    4. Material
    5. Physical properties
    6. Packaging and storage
    7. Marking
    Appendix
    A. Method for the determination of compression set
    Table
    1. Physical properties

    Abstract - (Show below) - (Hide below)

    Requirements for the composition and physical properties of rings of five different hardness values, for use in particular in contact with mineral oils.

    Scope - (Show below) - (Hide below)

    This British Standard specifies requirements for the composition and physical properties of toroidal sealing rings (“O??-rings) manufactured from acrylonitrile-butadiene rubbers complying with BS 6996. The five hardness grades of acrylonitrile-butadiene rubbers used are B0 50, B0 60, B0 70, B0 80 and B0 90 of BS 6996.

    NOTE The titles of the publications referred to in this standard are listed on inside back cover.

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

    Committee PRI/54
    Development Note Supersedes 84/35373 DC (09/2005) Reviewed and confirmed by BSI, January 2011. (12/2010)
    Document Type Standard
    Publisher British Standards Institution
    Status Current

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

    BS 907:1965 Specification for dial gauges for linear measurement
    BS 903-A26:1969 Physical testing of rubber Determination of hardness
    BS 6996:1989 Specification for mineral oil resistant acrylonitrile-butadiene rubber compounds
    BS 903-A16:1987 Physical testing of rubber Determination of the effect of liquids
    BS 6442:1984 Specification for limits of surface imperfections on elastomeric toroidal sealing rings (\'O\'-rings)
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