This standard specifies in detail the terms and definitions, types and basic parameters, requirements, test methods, inspection conditions, inspection methods, marking and Encasement of plate thickness Micrometers. Applicable to mechanical reading plate thickness Micrometers and electronic digital display plate thickness Micrometers with a scale interval of 0.01 mm, 0.001 mm and a resolution of 0.00 mm, with a measuring screw pitch of 0.5 mm, 1 mm or Miscellaneous specifications, with a measuring range of 10 mm, 15 mm, 25 mm or 50 mm. Measurement range up to 300 mm. Terms and definitions refer to GB/T 17163-2008 and GB/T 17164-2008, where plate thickness micrometers include mechanical readings and electronic digital display plate thickness micrometers.