ISO 294-4:2018
Current
The latest, up-to-date edition.
Plastics — Injection moulding of test specimens of thermoplastic materials — Part 4: Determination of moulding shrinkage
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English, French
20-12-2018
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This document specifies a method of determining the moulding shrinkage and post-moulding shrinkage of injection-moulded test specimens of thermoplastic material in the directions parallel to and normal to the direction of melt flow.
For the determination of shrinkage of thermosets, see ISO 2577[2].
Moulding shrinkage as defined in this document excludes the effects of humidity uptake. This is included in post-moulding shrinkage and thus in total shrinkage. For cases when post-moulding shrinkage is caused by the uptake of humidity only, see ISO 175[1].
Moulding shrinkage as defined in this document represents the so-called free shrinkage with unrestricted deformation of the cooling plates in the mould during the hold period. It is considered, therefore, as the maximum value of any restricted shrinkage.
| Committee |
ISO/TC 61/SC 9
|
| DocumentType |
Standard
|
| Pages |
9
|
| PublisherName |
International Organization for Standardization
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| Status |
Current
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| Supersedes |
| Standards | Relationship |
| NEN-EN-ISO 294-4:2019 en | Identical |
| BS EN ISO 294-4:2019 | Identical |
| PN-EN ISO 294-4:2019 | Identical |
| UNI EN ISO 294-4:2019 | Identical |
| SS-EN ISO 294-4 : 2019 | Identical |
| ÖNORM EN ISO 294-4 : 2019 03 15 | Identical |
| EN ISO 294-4:2019 | Identical |
| DS/EN ISO 294-4:2019 | Identical |
| I.S. EN ISO 294-4:2019 | Identical |
| SN EN ISO 294-4:2019 | Identical |
| DIN EN ISO 294-4:2019-04 | Identical |
| NS-EN ISO 294-4:2019 | Identical |
| UNE-EN ISO 294-4:2019 | Identical |
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