DIN EN ISO 14405-3:2017-07

This part establishes the default specification operator for angular size and defines a number of special specification operators for features of size with angular size: cone, frustum (truncated or not), wedge (truncated or not), two opposite straight lines (cross section of a wedge/truncated wedge and a plane perpendicular to the medium plane of the wedge/truncated wedge, cross section of a cone/frustum and a plane containing the axis of revolution of the cone/frustum). This part also defines the specification modifiers and the drawing indications for these angular sizes. This part defines the meaning of tolerances of angular sizes indicated as: - + and/or - limit deviations, e. g. 0°/-0,5°, or; - indicated with upper limit of size (ULS) and/or lower limit of size (LLS), e. g., 35° max. or 15° min. 34°/36; - with or without modifiers. This standard gives a set of tools box, to express several types of angular size characteristic. It does not give any information on the relationship between a function or a use and an angular size characteristic.