ISO INTERNATIONAL STANDARD 17123-2 First edition 2001-12-01 Optics and optical instruments Field procedures for testing geodetic and surveying instruments Part 2: Levels Optique et instruments d'optique -Methodes d'essai sur site des instrumentsgeodésiguesetd'observation Partie 2: Niveaux Reference number ISO 17123-2:2001(E) ISO @ISO 2001 Copyright Intemational Organization for Standardization ISO17123-2:2001(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is atrademarkof AdobeSystemsIncorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event ISO2001 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, elec- tronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's mem- ber body in the country of the requester. ISO copyright office Casepostale56·CH-1211Geneva20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.ch Printed in Switzerland CpyhmngananfStdarda IsO2001-All rightsreserved ards Bodies ta/59309700Userbaozh r Resale, 11/23/2016 09:16:23 MS ISO 17123-2:2001(E) Contents Page 1 Scope 1 2 Normativereferences 1 3 Terms and definitions 2 General 2 Simplified test procedure 5 3 6 Full test procedure 5 Annexes AExample of the simplifiedtestprocedure 10 A.1 Measurements 10 A.2 Calculation 10 B Example of thefull test procedure 12 B.1 Measurements 12 B.2 Calculation 12 B.3Statistical tests 13 CopyrghtIntem@sopegontarAwlghtrsreservede ii ISO17123-2:2001(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 liaison with isO, also take part in the work. Iso collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Attention is drawn to the possibility that some of the elements of this part of isO 17123 may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 17123-2 was prepared by Technical Committee ISO/TC 172, Optics and optical instruments,SubcommitteeSC6, Geodetic andsurveyinginstruments. This first edition of ISO 17123-2 cancels and replaces ISO 8322-3:1989 and ISO 12857-1:1997, which have been technically revised. ISsO 17123 consists of thefollowing parts, under the general title Optics and optical instruments-Field procedures fortestinggeodetic and surveying instruments: Part1:Theory — Part2:Levels Part3:Theodolites Part4:Electro-opticaldistance meters (EDM instruments) Part5:Electronictacheometers Part6:Rotatinglasers Part7:Opticalplumbinginstruments Annexes A and Bof this part of ISO17123 are for information only. ISO 2001-All rights reserve INTERNATIONALSTANDARD ISO17123-2:2001(E) Optics and optical instruments Field procedures for testing geodetic and surveying instruments Part 2: Levels 1 Scope This part of IsO 17123 specifies field procedures to be adopted when determining and evaluating the precision of levels (spirit levels, compensator levels, di