Skip to content
Please enter a keyword to search

  • BS 2782-6:Method 640A:1979

    Current The latest, up-to-date edition.

    Methods of testing plastics. Dimensional properties Determination of shrinkage of test specimens in the form of bars of compression moulded thermosetting moulding materials

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  31-08-1979

    Publisher:  British Standards Institution

    Add To Cart

    Abstract - (Show below) - (Hide below)

    Gives a method of determining the moulding shrinkage and shrinkage after heat treatment of thermosetting moulding materials, parameters used for the production control of thermosetting materials and for checking uniformity of manufacture. Initial shrinkage of thermosetting materials is important for the construction of compression moulds, whilst post-shrinkage for establishing the suitability of the moulding material for the manufacture of moulded pieces with accurate dimensions.

    Scope - (Show below) - (Hide below)

    This International Standard specifies a method of determining the moulding shrinkage and the shrinkage after heat treatment of thermosetting moulding materials.

    These characteristics are useful for the production control of thermosetting materials and for checking uniformity of manufacture. Furthermore, knowledge of the initial shrinkage of thermosetting materials is important for the construction of compression moulds, and that of post-shrinkage for establishing the suitability of the moulding material for the manufacture of moulded pieces with accurate dimensions.

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

    Committee PRI/21
    Development Note Supersedes 78/55155 DC (06/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Current

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

    BS 7825-3.6:1997 Calibration of rubber and plastics test equipment. Calibration schedules Dimensional properties
    BS 5734-2:1980 Polyester moulding compounds for electrical and other purposes Specification for dough moulding compounds for electrical purposes
    BS 8499:2017 Specification for domestic gas meter boxes and meter bracket
    BS 7008-1:1988 Acquisition and presentation of comparable data for basic properties of plastics. Method for single-point data
    BS 8499:2009 Specification for domestic gas meter boxes and meter bracket
    BS 5734-4:1980 Polyester moulding compounds for electrical and other purposes Specification for sheet moulding compounds for electrical purposes
    BS 5734-5:1990 Polyester moulding compounds for electrical and other purposes Specification for sheet moulding compounds for mechanical purposes
    BS 5734-4:1990 Polyester moulding compounds for electrical and other purposes Specification for sheet moulding compounds for electrical purposes
    BS 1322:1981 Specification for aminoplastic moulding materials
    BS 5734-3:1990 Polyester moulding compounds for electrical and other purposes Specification for dough moulding compounds for mechanical purposes
    BS 5734-2:1990 Polyester moulding compounds for electrical and other purposes Specification for dough moulding compounds for electrical purposes
    BS 771-2:1980 Phenolic moulding materials Specification for physical properties of type L2 material
    BS 5734-3:1980 Polyester moulding compounds for electrical and other purposes Specification for dough moulding compounds for mechanical purposes
    BS 5734-5:1980 Polyester moulding compounds for electrical and other purposes Specification for sheet moulding compounds for mechanical purposes
    BS 7010:1988 Code of practice for a system of tolerances for the dimensions of plastics mouldings
    09/30160438 DC : DRAFT JAN 2009 BS 8499 - SPECIFICATION FOR DOMESTIC GAS METER BOXES AND METER BRACKET

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

    BS 2782-0:GEN INTRO(1975) : LATEST
    BS 2782-9 Method 902A:1977 Methods of testing plastics. Sampling and test specimen preparation Compression moulding test specimens of thermosetting materials
    View more information

    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective