ISO INTERNATIONAL STANDARD 294-1 Secondedition 2017-05 Plastics Injection moulding of test specimens of thermoplastic materials - Part 1: General principles, and moulding of multipurpose and bar test specimens Plastiques - Moulage par injection des éprouvettes de materiaux thermoplastiques Partie 1: Principes généraux, et moulage des éprouvettes a usages multiples et des barreaux Reference number IS0 294-1:2017(E) International Organization for Standardization @ IS0 2017 ed without license from IHS IS0 294-1:2017(E) COPYRIGHT PROTECTED DOCUMENT IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Licensee-ZHEJIANG INST OF STANDARDIzoISQ 7 - All rights reserved networking permited without license from IHS IS0 294-1:2017(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions ..1 4 Apparatus ..6 4.1 Moulds .6 4.1.1 ISo (multi-cavity) moulds .6 4.1.2 Single-cavity moulds.. .9 4.2 Injection-moulding machine. 10 4.2.1 General 10 4.2.2 Moulding volume 10 4.2.3 Control system. .10 4.2.4 Screw .10 4.2.5 Clamping force .11 4.2.6 Thermometers .11 5 Procedure ..11 5.1 Conditioning of material 11 5.2 Injection moulding.. .12 5.3 Measurement of mould temperature. 5.4 Measurement of the melt temperature. .13 5.5 Post-moulding treatment of test specimens. 6 Report on test-specimen preparation ..13 AnnexA(informative)Examplesofrunnerconfigurations. ..15 Annex B (informative) Standardized injection-moulding mould components ..16 Annex C (informative) Example of an injection mould ..17 Annex D (informative) Methods for setting the injection moulding parameters ..18 Annex E (informative) Methods of determining the hold pressure and hold time .23 Bibliography .29 ii icensee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 without license from IHS