BS 2782-9:Method 940B:1989
Current
The latest, up-to-date edition.
Methods of testing plastics. Sampling and test specimen preparation Preparation of test specimens of amorphous thermoplastics with a specified reversion by injection moulding rectangular plates
Hardcopy , PDF
English
28-02-1989
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A method for obtaining specimens with high or low levels of reversion (shrinkage in response to heat treatment).
| Committee |
PRI/21
|
| DevelopmentNote |
Also numbered as ISO 2557-2 Supersedes BS 2782-9.940B(1981) (06/2005)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This part of ISO 2557 specifies the procedure for the preparation of test specimens with predominantly monoaxial orientation in the form of rectangular plates, made from rigid amorphous thermoplastic material. Cellular plastic materials and fibre-containing plastic materials are excluded.
The rectangular plates may be used for impact testing by the falling weight method.
Bars cut from the plate in different directions may serve as test specimens for the determination of the dependence of mechanical strength upon the degree and direction of the predominant orientation in the plate.
| BS 2782-0:1982 | Methods of testing plastics Introduction |
| BS 2782-9 Method 930A:1977 | Methods of testing plastics. Sampling and test specimen preparation Preparation of test specimens by machining |
| BS 2782-9 Method 940B:1981 | Methods of testing plastics. Sampling and test specimen preparation Preparation of test specimens of amorphous thermoplastic moulding material with a defined level of shrinkage in the form of rectangular plates by injection moulding |
| BS 2782-9 Method 940A:1981 | Methods of testing plastics. Sampling and test specimen preparation Preparation of test specimens of amorphous thermoplastic moulding material with a defined level of shrinkage in the form of parallelepipedic bars by compression moulding and injection moulding |
| BS 2782-9 Method 910A:1977 | Methods of testing plastics. Sampling and test specimen preparation Injection moulding test specimens of thermoplastic materials |
| BS 1755-1:1982 | Glossary of terms used in the plastics industry Polymer and plastics technology |
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