BS ISO 18229:2018 pdf download

BS ISO 18229:2018 pdf download

BS ISO 18229:2018 pdf download.Essential technical requirements for mechanical components and metallic structures foreseen for Generation IV nuclear reactors
1 Scope
This document defines the essential technical requirements that are addressed in the process of design and construction of Generation IV (GEN IV) nuclear reactors. It does not address operation, maintenance and in-service inspection of reactors.
Six reactor concepts are considered for GEN IV: the sodium fast reactor, the lead fast reactor, the gas fast reactor, the very high temperature reactor, the supercritical water reactor and the molten salt reactor.
Annex A details the main characteristics for the different concepts.
The scope of application of this document is limited to mechanical components related to nuclear safety and to the prevention of the release of radioactive materials
— that are considered to be important in terms of nuclear safety and operability,
— that play a role in ensuring leaktightness, partitioning, guiding, securing and supporting, and
— that contain and/or are in contact with fluids (such as vessels, pumps, valves, pipes, bellows, box structures, heat exchangers, handling and driving mechanisms).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO/IEC 17050-1, Conformity assessment — Supplier’s declaration of conformity — Part 1: General requirements
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at
— IEC Electropedia: available at
3.1 certification
third-party attestation related to products, processes, systems or persons
[SOURCE: ISO 17000:2004, 5.5 modified — notes deleted]
3.2 component
part of equipment which can be considered as an individual item
3.10 operating organization
legal entity having been duly authorized to implement and execute the operation of the nuclear installation
Note 1 to entry: In the subject field, the concept is usually designated by the term “Operator” beginning with capital letter.
3.11 prime contractor
legal entity granted that receives a major contract from the owner for providing a full provision of either the nuclear island and/or the balance of plant
3.12 qualification
proof of suitability of an individual, product, process, procedure or service to fulfil specified requirements
3.13 regulation
rules promulgated by a regulatory body in accordance with legal statutes or directives