DIN EN ISO 14405-3:2017-07

The part establishes the default specification operator for angular size and defines a number of special specification operators for features of angular size: cone (truncated, i.e. frustum, or not), wedge (truncated or not), two opposite straight lines (intersection of a wedge/truncated wedge and a plane perpendicular to the intersection straight line of the two planes of the wedge/truncated wedge, intersection 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. The document provides a set of tools to express several types of angular size characteristics. It does not give any information on the relationship between a function or a use and an angular size characteristic. This document (EN ISO 14405-3) has been prepared by Technical Committee ISO/TC 213/WG 12 "Size" in collaboration with Technical Committee CEN/TC 290 "Dimensional and geometrical product specification and verification", the secretariat of which is held by AFNOR (France). At the national level Working Committee NA 152-03-02 AA "CEN/ISO Geometrische Produktspezifikation und Prüfung" ("CEN/ISO Geometrical product specifications and verification") at DIN Standards Committee Technical Fundamentals (NATG) is responsible.