NF EN ISO 294-1
Plastics - Injection moulding of test specimens of thermoplastic materials - Part 1 : general principles, and moulding of multipurpose and bar test specimens
ISO 294-1:2017 specifies the general principles to be followed when injection moulding test specimens of thermoplastic materials and gives details of mould designs for preparing two types of specimen for use in acquiring reference data, i.e. type A1 and type B1 test specimens as specified in ISO 20753, and provides a basis for establishing reproducible moulding conditions. Its purpose is to provide consistent descriptions of the main parameters of the moulding process and to establish a uniform practice in reporting moulding conditions. The particular conditions required for the reproducible preparation of test specimens will vary for each material used and are given in the International Standard for the relevant material or are to be agreed upon between the interested parties. NOTE Interlaboratory tests with acrylonitrile/butadiene/styrene (ABS), styrene/butadiene (SB) and poly(methyl methacrylate) (PMMA) have shown that mould design is an important factor in the reproducible preparation of test specimens.
ISO 294-1:2017 specifies the general principles to be followed when injection moulding test specimens of thermoplastic materials and gives details of mould designs for preparing two types of specimen for use in acquiring reference data, i.e. type A1 and type B1 test specimens as specified in ISO 20753, and provides a basis for establishing reproducible moulding conditions. Its purpose is to provide consistent descriptions of the main parameters of the moulding process and to establish a uniform practice in reporting moulding conditions. The particular conditions required for the reproducible preparation of test specimens will vary for each material used and are given in the International Standard for the relevant material or are to be agreed upon between the interested parties.
NOTE Interlaboratory tests with acrylonitrile/butadiene/styrene (ABS), styrene/butadiene (SB) and poly(methyl methacrylate) (PMMA) have shown that mould design is an important factor in the reproducible preparation of test specimens.
Le présent document modifie le paragraphe 4.1.1.4, point h).
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1 Domaine d'application
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2 Références normatives
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3 Termes et définitions
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4 Appareillage
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5 Mode opératoire
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6 Rapport sur la préparation des éprouvettes
- Annexe A Exemple de configurations des canaux secondaires d'injection
- Annexe B Composants normalisés des moules pour montage par injection
- Annexe C Exemple de moule pour moulage par injection
- Annexe D Méthodes de réglage des paramètres de moulage par injection
- Annexe E Méthodes pour déterminer la pression de maintien et la durée de maintien
- Bibliographie
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