Here's a brief overview:

The ISO 14617-3 PDF document provides detailed information on:

ISO 14617-3 is a specific part of an international standard that defines the graphical symbols for diagrams used in technical documentation, specifically focusing on connections and related devices Overview of ISO 14617-3 The standard, titled

Standardized markers for connection joints (such as T-joints), ISO ports, and terminals.

Standardized lines representing the flow of energy, data, or materials.

ISO 14617-3 specifically focuses on the elements that link components within a system. According to the ISO 14617-3 Abstract, the standard specifies graphical symbols for:

ISO 14617-3 strictly defines line types: