TS ISO 14084-1

TS ISO 14084-1 is the standard that defines which types of process diagrams are used for power plants and how information in those diagrams is to be organised. In engineering practice, process diagrams bring together the main flows, equipment relationships and functional links of a plant in a single technical representation, supporting design communication and documentation.

Diagram types and how information is presented

This standard addresses the specification of process diagram types for power plants, together with rules and guidelines for preparing and representing information in those diagrams. In general technical use, process diagrams aim to show equipment names, flow directions, line connections and key measuring or control relationships in a consistent, readable way. That makes it easier for different engineering disciplines to work from the same visual language on the same plant.

• The standard specifies types of process diagrams for power plants.
• It gives rules and guidelines for preparing and representing information in those diagrams.
• It is positioned as a collective application standard for the ISO 15519 series.
• It does not apply to electrotechnical diagrams, which are covered by IEC 61082.
• It does not apply to fluid power diagrams, which are covered by ISO 1219-2.

How it differs from other drawing types

A process diagram is not the same as an electrical diagram or a fluid power diagram. That distinction matters because each drawing type uses a different level of technical detail, symbol logic and engineering purpose. In a complex facility such as a power plant, separating the process flow view from the electrical wiring view or the hydraulic/pneumatic power circuit view helps avoid documentation overlap and improves consistency across disciplines.

In broader technical context, standards like this help drawings remain consistent not only in appearance but also in meaning. That supports communication among project teams, operations staff and maintenance personnel, and helps make complex power plant systems easier to understand, review and archive.