UNE-EN 60617-2:1997

Foreword
Introduction
Chapter 1: Symbol elements
Section 1 Outlines and enclosures
Chapter II: Qualifying symbols
Section 2 Kind of current and voltage
Section 3 Adjustability, variability and automatic
            control
Section 4 Direction of force or motion
Section 5 Direction of flow
Section 6 Operational dependence on a characteristic
            quantity
Section 7 Types of material
Section 8 Effect or dependence
Section 9 Radiation
Section 10 Signal waveforms
Section 11 Printing, perforating and facsimile
Chapter III Other symbols having general application
Section 12 Mechanical and other controls
Section 13 Actuators, Set 1
Section 14 Actuators, Set 2
Section 15 Earth and frame connections, equipotentiality
Section 16 Ideal circuit elements
Section 17 Miscellaneous
Annexes
A (informative) Older symbols
B (informative) French alphabetic index
C (informative) English alphabetic index

Describes graphical symbols for diagrams.