EN ISO 294-3:2020 PDF

Name: EN ISO 294-3:2020 — Plastics - Injection moulding of test specimens of thermoplastic materials - Part 3: Small plates (ISO 294-3:2020)
SKU: EN ISO 294-3:2020
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Plastics - Injection moulding of test specimens of thermoplastic materials - Part 3: Small plates (ISO 294-3:2020)

Название (английский):

EN ISO 294-3:2020

Plastics - Injection moulding of test specimens of thermoplastic materials - Part 3: Small plates (ISO 294-3:2020)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 16
Дата публикации:: 15 июля 2020 г.
Издание:: CEN EN 294 edition 2 version 1
ICS:: 83.080.20

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Описание (английский):

This document specifies two two-cavity moulds, the type D11 and D12 ISO moulds, for the injection moulding of small plates measuring 60 mm × 60 mm with a preferred thickness of 1 mm (type D11) or 2 mm (type D12), which can be used for a variety of tests. The moulds can additionally be fitted with inserts for studying the effects of weld lines on the mechanical properties (see Annex A).

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 294-3:2020 - Plastics - Injection moulding of test specimens of thermoplastic materials - Part 3: Small plates - specifies the design and use of two two-cavity ISO moulds (type D11 and D12) for producing small plate test specimens (60 mm × 60 mm). The standard defines preferred thicknesses (1 mm for D11, 2 mm for D12), mandatory mould features and measurement provisions (for example, for moulding shrinkage and weld-line studies). This part is intended for laboratories, quality control and R&D that require repeatable, standardized specimens from injection moulding.

Key Topics and Requirements

Specimen dimensions: plates of 60 × 60 mm; thickness D11 = 1.0 ± 0.1 mm, D12 = 2.0 ± 0.1 mm.

Mould configuration: two-cavity moulds with one-end gating; sprue diameter on nozzle side ≥ 4 mm.

Gate and runner geometry:

Gate length = 4.0 ± 0.1 mm.
Gate height = (75 ± 5) % of cavity height.
Runner length = 25–30 mm; runner depth equals plate thickness (h); runner width at gate ≥ (plate width + 6 mm).

Ejector and surface requirements: ejector pins must be outside the central 50 mm diameter test area; cavity surfaces polished per ISO 294-1 guidance.

Instrumentation: a flush pressure sensor position in the cavity is specified (mandatory for moulding shrinkage measurement per ISO 294-4).

Machine requirements: recommended minimum locking force derived from melt pressure (example: for pmax = 80 MPa the calculation gives ~880 kN).

Weld lines: moulds can accept inserts to create and study weld lines (Annex A).

Interchangeability: cavity plates and gate inserts designed for interchangeability in line with ISO 294-1.

Applications and Who Uses It

Material testing laboratories producing standardized thermoplastic specimens for mechanical testing (e.g., impact, puncture, tensile).

Quality control teams verifying batch-to-batch consistency, moulding shrinkage and dimensional control.

R&D and formulation scientists evaluating effects of processing, weld lines and orientation on mechanical properties.

Tooling and process engineers designing ISO-compliant moulds and setting injection parameters to obtain comparable specimens.

Certification and standards bodies that require harmonized specimen production for inter-lab comparability.

Keywords: EN ISO 294-3:2020, injection moulding, thermoplastic materials, small plates, D11, D12, test specimens, moulding shrinkage, weld lines, ISO mould.

Related Standards

ISO 294-1:2017 - General principles and multipurpose/bar specimens (moulding & procedure).

ISO 294-4 - Determination of moulding shrinkage (uses the pressure sensor position specified in 294-3).

ISO 6603-1 - Puncture impact testing (example test that uses the preferred specimen dimensions).

This standard ensures repeatable production of small-plate specimens for standardized testing and comparative evaluation of thermoplastic materials and processing effects.

EN ISO 294-3:2020 PDF

Abstract

Похожие стандарты

Overview

Key Topics and Requirements

Applications and Who Uses It

Related Standards

Технические детали

ISO 294-3:2020

Plastics — Injection moulding of test specimens of thermoplastic materials — Part 3: Small plates

ISO 294-1:2017

Plastics — Injection moulding of test specimens of thermoplastic materials — Part 1: General principles, and…

SIST EN ISO 294-1:2017

Plastics - Injection moulding of test specimens of thermoplastic materials - Part 1: General principles, and…

SIST EN ISO 294-4:2019

Plastics - Injection moulding of test specimens of thermoplastic materials - Part 4: Determination of mouldin…

SIST EN ISO 6603-1:2000

Plastics - Determination of puncture impact behaviour of rigid plastics - Part 1: Non-instrumented impact tes…