IS 4551 : 1968 Specification for Lifeboat Crutches

1 Scope

1.1 This standard specifies the method of manufacture, materialand dimensions of crutches.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 1875 : 1966Specification for carbon steel billets, blooms and slabsfor forgings

IS 2107 : 1962Specification for whiteheart malleable iron castings

IS 2590 : 1964Specification for primary aluminium ingots for remeltingfor general engineering purposes

IS 2629 : 1966Recommended practice for hot-dip galvanizing of iron andsteel