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BS 2782-6:Method 640A:1979

BS 2782-6:Method 640A:1979

Current

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

NO CONTENTS SECTION

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.

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.

Committee
PRI/21
DevelopmentNote
Supersedes 78/55155 DC (06/2005)
DocumentType
Standard
Pages
8
PublisherName
British Standards Institution
Status
Current

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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

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

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