ISO INTERNATIONAL STANDARD 1708 Fourth edition 1989-11-01 Acceptance conditions for general purpose parallel lathes - Testing of the accuracy Conditions de reception des tours paralleles d'usage general-Controle de la précision Referencenumber ISO 1708 :1989 (E) ISO1708:1989 (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 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 approval before their acceptance as International Standards by the ISo Council. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO1708was prepared by Technical Committee ISO/TC39, Machinetools. This fourth edition cancels and replaces the third edition (IS0 1708 : 1983), of which it constitutes a minor revision. Annex A of this international Standard is for information only ISO1989 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any writing from the publisher. International Organization for Standardization Case posiaie 56CH-1211 Geneve 20 - Swizeriand Printed in Switzerland ISO1708:1989(E) INTERNATIONALSTANDARD Acceptance conditions for general purpose parallel lathes s -- Testing of the accuracy Scope 3.2 To apply this International Standard, reference shall be made to iso 230-1, especially for the installation of the This International Standard specifies, withreferenceto machine before testing, warming up of spindles and other mov- ing parts, description of measuring methods and recommended pose parallel lathes, and gives the corresponding permissible accuracy of testing equipment. deviationswhichapply. It deals only with the verification of the accuracy of the 3.3 The sequence in which the geometrical tests are given is machine. It does not apply to the testing of the running of the related to the sub-assemblies of the machine, and this in no machine (vibrations, abnormal noises, stick-slip motion of com- ponents, etc.), or to the checking of machine characteristics way defines the practical order of testing. In order to make the (speeds, feeds, etc.,) which shall generally be checked before mounting of instruments or gauging easier, tests may be the accuracy is tested. applied in any order. 2 Normativereference 3.4 When inspecting a machine, it is not always necessary to carry out all the tests given in this International Standard. It is The following standard contains provisions which,through up to the user to choose, in agreement with the manufacturer, reference in this text, constitute provisions of this International those tests relating to the properties which are of interest to Standard. At the time of publication, the edition indicated was him,but theagreedtests shall beclearlystatedwhen orderinga valid. All standards are subject to revision, and parties to machine. agreements based on this International Standard are encour- aged to investigate the possibility of applying the most recent edition of the standard indicated below.Members of IEC and 3.5 Practical tests shall be made with finishing cuts [for in- ISO maintain registers of currently valid International Standards. stance, depth = 0,1 mm (0,004 in); feed = 0,1 mm (0,004 in) ISo230-1:1986,Acceptancecodeformachinetools-Part1: per revolution) and not with roughing cuts, which are liable to Geometric accuracy of machines o