150 10207 91 4851903 0103260 6 INTERNATIONAL STANDARD ISO 10207 : 1991 TECHNICAL CORRIGENDUM 1 Published 1991-04-01 NORMALISATION Rock drilling equipment -- Rope threaded drill steel equipment for percussive drilling, nominal sizes 22 mm to 38 mm TECHNICAL CORRIGENDUM 1 Materiel de forage des roches -- Equipements pour forage percutant a filetage corde, de dimension nominale 22 mm a 38 mm RECTIFICATIF TECHNIQUE 1 Technical corrigendum 1 to International Standard ISO 10207 : 1991 was prepared by Technical Committee ISO/TC 82, Mining. Page ii Foreword Replace"IS01920:1974"by"S01720:1974". UDC622.233.5 Ref. No. ISO 10207 : 1991/Cor.1 : 1991 (E) Descriptors: mining equipment, driling equipment, rock drills, , percussion drilling, bore bits, shanks, coupling sleeves, hollow profiles, hexagonal bars, dimensions. @ISO 1991 CpyrightInternataganzatiorStandardizatio nse from IHS Not for Resale 4851903 0102160 8 150 10207 91 ISO INTERNATIONAL STANDARD 10207 First edition 1991-02-15 Rock drilling equipment - Rope threaded drill steel equipment for percussive drilling, nominal sizes 22 mm to 38 mm Materiel de forage des roches - Equipements pour forage percutant a filetage corde, de dimension nominale 22 mm a 38 mm Reference number ISO 10207:1991(E) Copyright International Organization for Standardization rking permited without license from IHS Not for Resale 150 10207 91 二 E06tsh 920T0 ISO 10207:1991(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 a technical committee has been established has the right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with Iso, also take part in the work. IsO collaborates closely with the Internationat 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 Inter- national Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IsO 10207 was prepared by Technical Committee IsO/TC 82, Mining. This International Standard, together with Iso 10208:1991, cancels and replaces IsO 1719:1974 and IsO 1920:1974, of which it constitutes a technical revision. @ ISO 1991 Ail rights reserved. No part of this publlcatlon may be reproduced or utllzed in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permlssion in writing from the publisher. International Organlzation for Standardization Case Postale 56CH-1211 Geneve 20 Switzerland Printed in Switzerland Copyright interational Organization for Standardization Not for Resale