SS-EN-ISO-294-4 Plastics - Injection moulding of test specimens of thermoplastic materials - Part 4: Determination of moulding shrinkage (ISO 294-4:2018)

SS-EN-ISO-294-4 - 2019 EDITION - CURRENT
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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.

To find similar documents by classification:

23.020.30 (Gas pressure vessels, gas cylinders Steam pressure vessels, see 27.060.30 Steel for pressure purposes, see 77.140.30)

83.080.20 (Thermoplastic materials)

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Designation Name

SS-EN ISO 294-4:2019

Revision Level

2019 EDITION

Status

Current

Publication Date

Feb. 18, 2019

Language(s)

English

Page Count

24

International Equivalent

EN ISO 294-4:2019(IDT); ISO 294-4:2018(IDT)