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  • BS 7677:1993

    Current The latest, up-to-date edition.

    Recommendations for classification of imperfections in pipe joint rings

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  15-07-1993

    Publisher:  British Standards Institution

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

    Committees responsible
    National foreword
    Introduction
    Recommendations
    1 Scope
    2 Normative references
    3 Classification of imperfections
    4 Maximum acceptable limits for imperfections
    Annex
    A (informative) Bibliography
    Table
    1 Classification of surface imperfections in zones not
       involved in the sealing function
    Figures
    1 Flash
    2 Off-register
    3 Mismatch
    4 Backrind and parting-line indentation
    5 Excessive trimming
    6 Flow marks
    7 Surface depression

    Abstract - (Show below) - (Hide below)

    Describes and classifies imperfections in the rubber joint rings for pipelines. Also includes detailed diagrams.

    Scope - (Show below) - (Hide below)

    This International Standard describes and classifies imperfections in rubber joint rings for pipelines.

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

    Committee PRI/70
    Development Note Also numbered as ISO 9691 Supersedes 91/40185 DC (10/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

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

    ISO 6447:1983 Rubber seals Joint rings used for gas supply pipes and fittings Specification for material
    ISO 6448:1985 Rubber seals Joint rings used for petroleum product supply pipes and fittings Specification for material
    ISO 4633:2015 Rubber seals — Joint rings for water supply, drainage and sewerage pipelines — Specification for materials
    ISO 2781:2008 Rubber, vulcanized or thermoplastic Determination of density
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