ISO 294-4

Plastics - Injection Moulding of Test Specimens of Thermoplastic Materials - Part 4: Determination of Moulding Shrinkage

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Organization: ISO
Publication Date: 1 December 2018
Status: active
Page Count: 16
ICS Code (Thermoplastic materials): 83.080.20
scope:

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.

Document History

ISO 294-4
December 1, 2018
Plastics - Injection Moulding of Test Specimens of Thermoplastic Materials - Part 4: Determination of Moulding Shrinkage
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...
November 15, 2007
Plastics — Injection moulding of test specimens of thermoplastic materials — Part 4: Determination of moulding shrinkage TECHNICAL CORRIGENDUM 1
This part of ISO 294 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...
December 15, 2001
Plastics - Injection Moulding of Test Specimens of Thermoplastic Materials - Part 4: Determination of Moulding Shrinkage
This part of ISO 294 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...
April 15, 1997
Plastics - Injection Moulding of Test Specimens of Thermoplastic Materials - Part 4: Determination of Moulding Shrinkage
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References

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