IS 4992 : 1975 Specification for door handles for mortice lock (vertical type)

1 Scope

1.1 This standard covers the requirements for door handles foroperation of mortice locks (vertical type) covered in IS 2209 :1966.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 2209 : 1966Specification for mortice locks

IS 1868 : 1968Specification for anodic coating on aluminium