Kommittébeteckning: SIS/TK 405 (Kärnenergi)
Källa: ISO
Svarsdatum: den 17 jul 2023
Se merSe mindre

This document specifies the applicable requirements related to the design and the operation of confinement and ventilation systems for fusion nuclear facilities for tritium fuels and tritium fuel handling facilities specific for fusion nuclear applications for peaceful purposes using high tritium
inventories, as well as for their specialized buildings such as hot cells, examination laboratories, emergency management centres, radioactive waste treatment and storage facilities.
In most countries, a tritium quantity is declared as high for tritium inventories higher than a range of 10-100 g. In the tritium fusion facilities in the scope of this document, the tritium inventory is deemed to be higher than this range.
document applies especially to confinement and ventilation systems that ensure the safety function of nuclear facilities involved in nuclear fusion with the goal to protect the workers, the public and the environment from the dissemination of radioactive contamination originating from the operation of
these installations, and in particular from airborne tritium contamination with adequate confinement systems.
The other types of confinement systems for other facilities are covered by ISO 26802 for fission nuclear reactors and by ISO 17873 for facilities other than fission nuclear reactors. Therefore, the scope of this document does not cover the facilities already covered by ISO 17873 and ISO 26802. The other nuclear facilities involved in tritium releases are excluded from the scope of this document, even though they create tritium releases (e.g. fission facilities, tritium laboratories, tritium removal facilities from fission plants, tritium defence facilities).