IS 15483 : Part 2 : 2024/ISO 12858-2 : 2020 Optics and Optical Instruments - Ancillary Devices for Geodetic Instruments - Part 2 Tripods
NATIONAL FOREWORD
This Indian Standard (Part 2) (First Revision) which is identical to ISO 12858 – 2 : 2019 'Optics and optical instruments - Ancillary devices for geodetic instruments - Part 2: Tripods' issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Optics and Photonics Sectional Committee and approval of the Production and General Engineering Division Council.
This document specifies the most important requirements of telescopic tripods for surveying instruments and the connection between instrument and tripod.
This standard was first published in 1999. This revision has been undertaken to align it with the latest version of ISO 12858-2. The major changes in this revision are as follows:
a) Reference standards have been updated; and
b) In Fig. 1, the dimensions have been updated.
The text of ISO standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:
a) Wherever the words 'International Standard' appear referring to this standard, they should be read as 'Indian Standard'; and
b) Comma (,) has been used as a decimal marker, while in Indian Standards, the current practice is to use a point (.) as the decimal marker.