标准号:IS 9112-1979
发布日期:1979/10/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:Covers the screw thread micrometer used for measuring pitch diameter of ISO metric screw threads, with the following individual measuring range and 0·01 mm unit graduation.a) 0 — 25 mm,b) 25 — 50 mm,c) 50 — 75 mm, andd) 75 — 100 mm.