BS EN ISO 294-4:2019 Plastics. Injection moulding of test specimens of thermoplastic materials. Determination of moulding shrinkage

BS EN ISO 294-4:2019

Plastics. Injection moulding of test specimens of thermoplastic materials. Determination of moulding shrinkage

Status : Current   Published : February 2019

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PDF

Format
HARDCOPY



What is this standard about?

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.

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.

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.




Standard NumberBS EN ISO 294-4:2019
TitlePlastics. Injection moulding of test specimens of thermoplastic materials. Determination of moulding shrinkage
StatusCurrent
Publication Date11 February 2019
Normative References(Required to achieve compliance to this standard)ISO 294-3:2002, ISO 294-1:2017
Informative References(Provided for Information)ISO 2577, ISO 175
ReplacesBS EN ISO 294-4:2003
International RelationshipsEN ISO 294-4:2019,ISO 294-4:2018
DescriptorsInjection moulding, Polymers, Moulded materials, Shrinkage tests, Plastics and rubber technology, Specimen preparation, Shrinkage, Moulding (process), Dimensional changes, Thermoplastic polymers, Plastics, Dimensional measurement, Test specimens
ICS83.080.20
Title in FrenchPlastiques. Moulage par injection des éprouvettes de matériaux thermoplastiques Détermination du retrait au moulage
Title in GermanKunststoffe. Spritzgießen von Probekörpern aus Thermoplasten Bestimmung der Verarbeitungsschwindung
CommitteePRI/82
ISBN978 0 580 92865 9
PublisherBSI
FormatA4
DeliveryYes
Pages18
File Size568 KB
Price£130.00


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