IS 5146 : 1969 Specification for Sounding Sextant

1 Scope

1.1 This standard covers the requirements of a sounding sextant.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 988 : 1959General requirements for optical components

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

IS 2754 : 1964General requirements for optical instruments