ISO 22946-2020 pdf free

04-23-2021 comment

ISO 22946-2020 pdf free.Nuclear criticality safety — Solidwaste excluding irradiated and non-irradiated nuclear fuel.
This document provides specific requirements and guidance on the nuclear criticality safety of wastecontaining fissile nuclides,generated during normal operations.This document is intended to be usedalong-side and in addition to ISO 1709.
This document applies specifically to the nuclear criticality safety of solid nuclear wastes.ltalso appliesto residual quantities of liquids and/or slurries which are either intimately associated with the solidnuclear waste materials or arise as a result of processing or handling the waste.
This document does not apply to bulk or process liquids (including higher concentration processsolutions) or irradiated or un-irradiated fuel elements.
NOTE The term fuel element is sometimes applied to fuel assembly, fuel bundle, fuel cluster, fuel rod, fuelplate, etc.All these terms are based on one or more fuel elements.A cylindrical fuel rod (sometimes referred to asa fuel pin) for a light-water-reactor is an example of a fuel element.
All stages of the waste life cycle are within the scope of the document. This document can also beapplied to the transport of solid nuclear waste outside the boundaries of nuclear establishments.
The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document. For dated references, only the edition cited applies.Forundated references, the latest edition of the referenced document (including any amendments) applies.
A nuclear criticality safety strategy for waste shall be developed and documented.
Developing a nuclear criticality safety strategy as early as practicable will reduce the potential redesignor rework of nuclear criticality safety assessment and controls at a later stage. Documentation of thestrategy allows for it to be reviewed; it also forms part of the audit trail as the waste is managed overits entire waste life cycle potentially including multiple owners, handling and processing stages andsignificant periods of time.
The nuclear criticality safety strategy for waste should be developed at the facility/plant design stagebefore any waste is created so risk and waste volume reduction options can be considered.
In the instances of existing wastes, which may have been created without a formal nuclear criticalitysafety strategy for waste, the earliest practicable stage can be regarded as the current stage at the timeof application of this document.ISO 22946 pdf download.

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