Norm

NEN-EN-ISO 294-4:2019 en

Kunststoffen - Het spuitgieten van proefstukken van thermoplastische materialen - Deel 4: Bepaling van de vormkrimp

53,43 64,65 Incl BTW

Over deze norm

Status Definitief
Aantal pagina's 9
Commissie Kunststoffen
Gepubliceerd op 01-02-2019
Taal Engels
NEN-EN-ISO 294-4 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.

Details

ICS-code 83.080.20
Nederlandse titel Kunststoffen - Het spuitgieten van proefstukken van thermoplastische materialen - Deel 4: Bepaling van de vormkrimp
Engelse titel Plastics - Injection moulding of test specimens of thermoplastic materials - Part 4: Determination of moulding shrinkage
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