IS 8680 : 1978 Specification for Engineers' Drawing Instruments, Compass, Bow Pen, Double Knee Jointed with Sector Head Joints

1 Scope

1.1 This standard covers the requirements of compass, bow pen,double knee jointed for use in drawing offices.

2 References

IS 3216 :1965Specification for engineers' drawinginstruments, needles

IS 3211 :19657Specification for engineers' drawinginstruments, pen points

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

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