IS 6635 : 1972 Specification for Tractor Operated Disc Harrows

1 Scope

1.1 This standard prescribes the material and requirements forthe disc harrows operated by agricultural tractors.

2 References

IS 2 :1960Rules for rounding off numerical values

IS 210 :1970Specification for grey iron castings

IS 226 :1969 Specification for structural steel(standardquality)

IS 822 :1970Code of procedure for inspection of welds

IS 1570 :1961Schedules for wrought steels for generalengineering purposes

IS 4366 : Part I :1972 Specification for agricultural tillagediscs:Part I Concave type

IS 4468 :1967Dimensions for three-point linkage ofagricultural wheeled tractors

IS 4905 :1968Methods for random sampling

IS 4931 :1968Specification for power take-off shafts ofagricultural tractors

IS 7230 :1974Specification for plain spool for tractoroperated disc harrows