1、 ISO 2013 Optics and optical instruments Ancillary devices for geodetic instruments Part 2: Tripods AMENDMENT 1: Length of tripods Optique et instruments doptique quipements annexes pour les instruments godsiques Partie 2: Trpieds AMENDEMENT 1: Longueur du trpieds INTERNATIONAL STANDARD ISO 12858-2
2、First edition 1999-10-01 Reference number ISO 12858-2:1999/Amd.1:2013(E) AMENDMENT 1 2013-09-01 ISO 12858-2:1999/Amd.1:2013(E)ii ISO 2013 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2013 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utiliz
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4、 office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ISO 12858-2:1999/Amd.1:2013(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bod
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10、C 6, Geodetic and surveying instruments. ISO 2013 All rights reserved iii Optics and optical instruments Ancillary devices for geodetic instruments Part 2: Tripods AMENDMENT 1: Length of tripods Page 2, Table 1 Replace Table 1 with the following new table. Thus, for the “l 1 ” row, in the fourth col
11、umn “Type LF”, fifth column “Type H” and sixth column “Type LS”, replacing the values “1700”, “1800” and “1700” with “1650”, “1700” and “1650”, respectively. Table 1 Mechanical properties Parameter Type of head Flat head Spherical head Description Unit Type LF Type H Type LS Design light-weight heav
12、y-weight light-weight Mass of tripod kg (max.) 5,5 7 5,5 Suitable for instruments weighing kg (max.) 5 15 5 Symbol ain Figure 1 l 1 mm 1650 1700 1650 l 2 mm 1200 1200 1200 d mm 125 150 125 z mm 25 35 25 t mm 110 125 110 a Where:l 1is the minimum length of tripod, legs extended;l 2is the maximum leng
13、th of tripod, legs retracted;d is the minimum diameter of tripod platform;z is the minimum diameter of rotating piece;t is the minimum distance between step and point. ISO 12858-2:1999/Amd.1:2013(E) ISO 2013 All rights reserved 1 ISO 12858-2:1999/Amd.1:2013(E) ISO 2013 All rights reserved IC S 17;180;30 Price based on 1 page
