IS 2976 : 1964 Specification for Optical Theodolite

1 Scope

1.1 This standard covers the functional and general requirementsof optical theodolites. The theodolite shall be referred to not bythe size of its horizontal circle but by the least count of itsmicrometer, such as optical theodolite of one second.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 988 : 1959General requirements for optical components

IS 1632 : 1960Specification for bubbles

IS 2352 : 1963Procedure for basic climatic and durability tests foroptical instruments