BS 2782-6:Method 640A:1979
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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
Hardcopy , PDF
English
31-08-1979
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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.
| Committee |
PRI/21
|
| DevelopmentNote |
Supersedes 78/55155 DC (06/2005)
|
| DocumentType |
Standard
|
| Pages |
8
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
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.
| Standards | Relationship |
| UNE-EN 16421:2015 | Identical |
| 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 |
| 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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