Standards Development

Scope

This document describes guidance for predisposal stages and its sub-processes according to the objectives of ISO 24389-1. It is composed of pre-treatment, treatment and conditioning which consists of subprocesses, storage and transport.

It addresses features necessary to manage predisposal such as characterization and categorization also.

See [9], [10], [11], [12], [15], [21] and [22] in ISO and IAEA for more information for transport.

This guidance applies to all the categories of radioactive waste excluding spent fuel.

This guidance provides the followings for details on each stage;

1) Objectives,

2) Activities and tasks,

3) Outcomes

For radioactive waste containing special contaminants (e.g., polychlorinated biphenyls, pathogenic microorganisms, highly mobile colloids), the general processes of this document shall be adjusted for application in combination with national regulations and special treatment technical standards (such as relevant IAEA technical documents).

The outputs of each stage described in this document (e.g., conditioned waste package, characterization records, etc.) shall comply with the waste acceptance criteria of the subsequent disposal stage (refer to ISO 24389-3), and the design of each sub-process shall consider the potential requirements of disposal facilities for waste form, radionuclide content, and packaging stability.

Appendix A compares the principles, objectives, and practical approaches of ISO 24389-1 with the details of this standard, and provides relevant reference standards and documents for more information of each stage and process of predisposal.