IS 3215 : 1991 Engineers' drawing instruments, needle points - Specification

1 Scope

This standard covers the requirements of needle points of Type Aand Type B for engineers' drawing instruments.

2 References

IS 1068 :1985Electroplated coatings of nickel plus chromiumand copper plus nickel plus chromium on iron andsteel

IS 2500 : Part 1 :1973 Sampling inspection tables: Part 1Inspectionby attributes and by count of defects

IS 3216 :1989Engineers' drawing instruments, needles

IS 3222 : Part 1 :1989 Instruments screws: Part 1 Fasteners fordrawinginstruments