Abstract

ISO 294-5:2017 specifies a mould (designated the type F ISO mould) for the injection moulding of plates with a preferred size of 80 mm × 120 mm and a minimum size of 80 mm × ≥90 mm and with a preferred thickness of 2 mm for single-point and multi-point data acquisition. It has been found to provide the maximum anisotropic properties, with only a slight sensitivity to the rate of injection. Whenever possible, a two cavity mould is intended to be used. For the design of plastic parts, this will provide upper and lower bounds for the tensile properties. Matching the plate thickness to a given part thickness is not a suitable criterion because of the effect of mould filling rate and part geometry on anisotropy.

Begin

2022-12-13

WI

00249A56

Planned document number

DIN EN ISO 294-5

Project number

05402267

Responsible national committee

NA 054-01-02 AA - Mechanical properties and preparation of test specimens  

Responsible european committee

CEN/TC 249 - Plastics  

Responsible international committee

ISO/TC 61/SC 9/WG 18 - Preparation of test specimens  

draft standard

Plastics - Injection moulding of test specimens of thermoplastic materials - Part 5: Preparation of standard specimens for investigating anisotropy (ISO/DIS 294-5:2024); German and English version prEN ISO 294-5:2024
2024-12
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previous edition(s)

Plastics - Injection moulding of test specimens of thermoplastic materials - Part 5: Preparation of standard specimens for investigating anisotropy (ISO 294-5:2017); German version EN ISO 294-5:2017
2018-03

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