TS ISO 12749-3

TS ISO 12749-3 is a vocabulary standard that defines terms used for the nuclear fuel cycle within nuclear energy. This part focuses on the terminology surrounding fuel-cycle concepts while excluding reactor operations; its purpose is to improve communication and support a shared understanding of the subject.

Why fuel-cycle terminology matters

The nuclear fuel cycle is the chain of technical activities associated with nuclear fuel, from its source materials through preparation, use, and subsequent handling. In this field, precise vocabulary matters because it separates material streams, process stages, recovery concepts, and waste-related topics. As a vocabulary standard, TS ISO 12749-3 organises that language; it is not a process specification and does not, on the basis of the supplied scope, prescribe operational requirements or technical limits.

Defined scope and practical use

The explicit scope of this part is limited to unambiguous terms and definitions related to nuclear fuel cycle concepts in nuclear energy. By excluding reactor operations, it stays centered on terminology rather than plant operation, safety procedures, or performance rules. In practice, such a vocabulary is useful in engineering documentation, regulatory discussion, technical reporting, and training where consistent wording reduces confusion and supports clarity.

• Lists terms and definitions for nuclear fuel cycle concepts.
• Supports consistent and unambiguous use of terminology.
• Excludes reactor operations from its scope.
• Aims to promote common understanding in nuclear energy contexts.