GSO ISO 12858-1:2007
ISO 12858-1:1999
Gulf Standard
Current Edition
·
Approved on
26 September 2007
Optics and optical instruments- Ancillary devices for geodetic instruments – Part 1: Invar levelling staffs
GSO ISO 12858-1:2007 Files
Arabic
4 Pages
Current Edition
20.51 OMR
English
4 Pages
Current Edition
Reference Language
20.51 OMR
GSO ISO 12858-1:2007 Scope
This part of ISO 12858 specifies the most important requirements of Invar levelling staffs used in geodesy and
industry for precise measurement of heights in combination with either an optical-mechanical level equipped with a
parallel plate micrometer, or a digital level of comparable precision.
This part of ISO 12858 is not applicable to the detailed design and construction of Invar levelling staffs (e.g.
materials, handles, fixing points for the struts, fixing of the Invar strip and of the circular level), which may be
selected by the manufacturer as appropriate.
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