ISO 14405-2-2018 产品几何量技术规范(GPS)--尺寸公差--第2部分：除了线性尺寸或角度之外的尺寸 Geometrical product specifications (GPS) — Dimensional tolerancing — Part 2: Dimensions other than linear or angular sizes

This document illustrates the ambiguity caused by the use of dimensional specifications to control 
properties other than linear or angular size and the benefit of using geometrical specifications instead.
Dimensional tolerancing can be indicated by ± tolerancing or geometrical specifications.
The ambiguity caused by using ± tolerances for dimensions other than linear or angular sizes (for 
individual tolerances and general tolerances according to, e.g. ISO 2768-1 and ISO 8062-3) is explained 
in Annex A.
NOTE 1 The figures, as shown in this document, merely illustrate the text and are not intended to reflect 
actual usage. The figures are consequently simplified to indicate only the relevant principles.
NOTE 2 For indications of dimensional specifications, see the following:
— ISO 14405-1 for linear size;
— ISO 14405-3 for angular size;
— ISO 2538-1 and ISO 2538-2 for wedges;
— ISO 3040 for cones.
NOTE 3 The rules for geometrical specifications are given in ISO 1101.nd edition 2018-12 Geometrical product specifications (GPS) — Dimensional tolerancing — Part 2: Dimensions other than linear or angular sizes Spécification géométrique des produits (GPS) — Tolérancement dimensionnel — Partie 2: Dimensions autres que tailles linéaires ou angulaires Reference number ISO 14405-2:2018(E) ？ ISO 2018 ISO 14405-2:2018(E) COPYRIGHT PROTECTED DOCUMENT ？ ISO