Inspection Equipment Calibration Frequency NOTE: These designated frequencies are used as the starting frequency and may be revised as dictated by the frequency of adjustment/repair required. (See individual calibration cards.) In no case will 12 months be exceeded. Micrometers (all types) ----------1 month Dial/Vernier Calipers -----------3 months Thread Plug Gages ---------------3 months or number of passes Thread Ring Gages ---------------3 months or number of passes Dial Indicators ---------------------3 months Plain Plug Gages ------------------6 months Precision Pin Gages --------------6 months Drill Blanks -------------------------6 months Precision Height Gages ----------6 months Electronic Height Gages ---------6 months Gage Blocks -------------------------12 months Surface Plates -----------------------12 months End Standards -----------------------12 months Optical Comparators --------------12 months Protractors ---------------------------12 months Vee Blocks ---------------------------12 months Parallels ------------------------------12 months Angle Plates -------------------------12 months Precision Squares -----------------12 months Sine Bars ----------------------------12 months   Back to QC Table of Contents This page is best viewed with a screen resolution of 800x600 or higher with Netscape 4.0 or Internet Explorer 4.0.