IS 4339 : 1997 Household Sewing Machines - Needle Bar Link Studs - Specification

1 Scope

This standard specifies the requirements for needle bar linkstuds for sewing machines for household purposes.

2 References

IS 1501 : Part 1 :1984 Method for vickers hardness test formetallicmaterials:Part 1 HV 5 to HV 100

IS 2500 : Part 1 :1992 Sampling inspection procedure:Part 1 Attribute sampling plans indexed byacceptance quality level (AQL) for lot by lotinspection

IS 4432 :1988Case hardening steel

IS 4905 :1968Methods for random sampling