4851903 066032536T 9 T-61E9 0S1 ISO INTERNATIONAL STANDARD 8319-1 Secondedition 1996-05-15 Orthopaedic instruments -- Drive connections - Part 1: Keys for use with screws with hexagon socket heads Instruments orthopediques -- Raccords d'entrainement - Partie 1: Cles a utiliser pour les vis a tete a six pans creux ISO Reference number ISO 8319-1:1996(E) 150 8319-1 96 4851903 0660326 2T6 ISO 8319-1:1996(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through IsO technical committees. Each member body interested in a subject for which non-governmental, in liaison with ISO, also take part in the work. isO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 8319-1 was prepared by Technicai Committee ISO/TC 150, Implants for surgery, Subcommittee SC 5, Osteosynthesis. This editioncancelsandreplacesthefirst second edition (IsO 8319-1:1986), which has been technically revised. IsO 8319 consists of the following parts, under the general title Ortho- paedic instrumentsDrive connections: Part 1: Keys for use with screws with hexagon socket heads Part 2: Screwdrivers for single slot head screws, screws with cru- ciate slot and cross-recessed head screws Annexes A and B of this part of ISO 8319 are for information only. CISO1996 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm,withoutpermission inwritingfromthepublisher. International Organization for Standardization Case postale 56·CH-1211Geneve 20·Switzerland Printed in Switzerland i 8319-196 ISO E06T59 80660327 132 2 @ISO IS08319-1:1996(E) Introduction Essential requirements for all varieties of screw keys are that a) the working end of the screw key should accurately engage the head ofthe screw; b) the materials used for the manufacture of the screw keys should be satisfactory from all clinical aspects; the screw key should have adequate strength. C) The purpose of this part of ISO 8319 is to ensure that this is achieved without imposing undue restriction on design features. I!!