IS 5726 : 1970 Specification for Engineers Drawing Instruments, Bordering Pens

1 Scope

1.1 This standard covers the requirements of bordering pen having a handle and drawing nib. The bordering pen may be plain or lifting-nib type. In case of lifting-nib type, both the outer nibs should have provision to lift.

2 References

IS 2 : 1960 Rules for rounding off numerical values

IS 1068 : 1968 Specification for electroplated coatings of nickel and chromium on iron and steel

IS 3222 : Part I : 1966 Specification for instrument screws: Part I Fasteners for drawing instruments