EN ISO 1101:2017

European foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Basic concepts
5 Symbols
6 Toleranced features
7 Tolerance zones
8 Geometrical specification indication
9 Supplementary indications
10 Theoretically exact dimensions (TED)
11 Restrictive specifications
12 Projected toleranced feature
13 Intersection planes
14 Orientation planes
15 Direction feature
16 Collection plane
17 Definitions of geometrical specifications
Annex A (informative) - Deprecated and former
        practices
Annex B (informative) - Explicit and implicit rules
        for geometrical tolerance zones
Annex C (informative) - Filters
Annex D (normative) - ISO special specification
        elements for form
Annex E (informative) - Filter details
Annex F (normative) - Relations and dimensions of
        graphical symbols
Annex G (informative) - Relation to the GPS matrix
        model
Bibliography

ISO 1101:2017 defines the symbol language for geometrical specification of workpieces and the rules for its interpretation.It provides the foundation for geometrical specification.The illustrations in this document are intended to illustrate how a specification can be fully indicated with visible annotation (including e.g. TEDs).NOTE 1 Other International Standards referenced in Clause 2 and in Tables 3 and 4 provide more detailed information on geometrical tolerancing.NOTE 2 This document gives rules for explicit and direct indications of geometrical specifications. Alternatively, the same specifications can be indicated indirectly in accordance with ISO 16792 by attaching them to a 3D CAD model. In this case, it is possible that some elements of the specification are available through a query function or other interrogation of information on the model instead of being indicated using visible annotation