目录主题几何特性符号2通用符号3术语和定义4半径和控制半径6统计公差符号7形体控制框8一般原则9基准12平面度33直线度34圆度36圆柱度37垂直度38倾斜度40平行度42轮廓度公差带44面轮廓度45共平面轮廓度46线轮廓度47轮廓/位置度边界控制48复合轮廓度应用50圆跳动52全跳动53独立原则位置度（应用于孔）54最大实体原则位置度（应用于孔）55最小实体原则位置度（应用于孔）56最大实体原则位置度（应用于同轴圆）57最大实体原则位置度（应用于有效条件基准的同轴圆柱形体） 58最大实体原则位置度（应用于非圆柱形体） 59位置度（双向控制）60位置度（应用于长形孔-边界形）61位置度（用于控制对称度）62延伸公差带63固定联结件位置度计算公式64浮动联结件位置度计算公式65复合位置公差66多组合位置公差68位置度为零的最大实体原则70同轴度71对称度72转换图73表面特性定义74表面特性符号75表面特性75公英制转换77 1 Table of ContentSubjectGeometric Characteristic Symbols2Common Symbols3Terms and Definitions 4Radius and controlled Radius 6Statistical Tolerancing Symbol7Feature Control Frame8General Rules9Datums 12Flatness 33Straightness34Circularity36Cylindricity 37Perpendicularity38Angularity 40Parallelism42Profile Tolerance Zone44Profile of a Surface 45Profile of Coplanar Surfaces 46Profile of a Line47Profile/Position Boundary Control 48Composite Profile Application 50Circular Runout 52Total Runout 53Position RFS (applied to a hole)54Position MMC (applied to a hole) 55Position LMC (applied to a hole) 56Position MMC (applied to a coaxial diameter)57Position MMC (applied to a coaxial diameter with virtual condition datum)58Position MMC (applied to a non-cylindrical feature-of-size) 59Position (as a bi-directional control) 60Position (applied to a elongated holes-boundary concept)61Position (used to control symmetry)62Projected Tolerance Zone63The Fixed Fastener Formula64The Floating Fastener Formula65Composite Position Tolerancing 66Position (multiple single segment control)68Zero Tolerance at MMC70Concentricity 71Symmetry72Conversion Chart 73Surface Texture Definitions 74Surface Texture Symbols75Surface Texture75 Conversion of Metric to Inch77 1几何特性符号使用参考基准公差类型特性符号不用形状直线度平面度圆度圆柱度有时用轮廓线轮廓度面轮廓度常用方向倾斜度垂直度平行度位置位置度 同轴度对称度跳动圆跳动全跳动2Geometric Characteristic SymbolsUSED A DATUM REFERENCETYPE OF TOLERANCECHARACTERISTICSYMBOLNEVERFORMSTRAIGHTNESSFLATNESSCIRCULARITY (ROUNDNE