8 Orientation Tolerances
8.1 Introduction
8.2 Parallelism
8.2.1 Parallelism of a Median Line Related to a Datum System
8.2.2 Parallelism of a Set of Lines on a Surface Related to a Datum Plane
8.2.3 Parallelism of a Planar Surface Related to a Datum System
8.3 Perpendicularity
8.3.1 Perpendicularity of a Median Line Related to a Datum System
8.3.2 Perpendicularity of a Median Line Related to a Datum Straight Line
8.3.3 Perpendicularity of a Median Line Related to a Datum Plane
8.3.4 Perpendicularity of a Planar Surface Related to a Datum Plane
8.3.5 Perpendicularity (MMR) Applied to a Feature of Size
8.4 Angularity
8.4.1 Angularity of a Median Line Related to a Datum Straight Line
8.4.2 Angularity of a Median Line Related to a Datum System
8.4.3 Angularity of a Planar Surface Related to a Datum Plane
8.4.4 Angularity (MMR) Applied to a Feature of Size
8.5 Orientation Tolerances in the ASME Standards
