IS 11961 : 1986 Specification for 4-metre Levelling Staff (Telescopic)

1 Scope

1.1 This standard covers the requirements of the 4-m levellingstaff (telescopic).

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 226 : 1975Specification for structural steel (standard quality)

IS 247 : 1973Recommendations for maximum permissible moisture contentfor timber used for different purposes

IS 292 : 1983Specification for leaded brass ingots and castings

IS 320 : 1980Specification for high tensile brass rods and sections(other than forgoing stock)

IS 617 : 1975Specification for aluminium and aluminium alloy ingotsand castings for general engineering purposes

IS 737 : 1974Specification for wrought aluminium and aluminiumalloys, sheet and strip (for general engineering purposes)

IS 1632 : 1960Specification for bubbles

IS 2507 : 1975Specification for cold rolled steel strip for springs

IS 7047 : 1973Specification for timbers used in instrument industry