Table 2.10. Storage Recommendations for Plutonium Metal Dioxide (adapted from Haschke and Martz, 1993)

DOE-STD-1128-98

Table 2.10. Storage Recommendations for Plutonium Metal Dioxide (adapted from

Haschke and Martz, 1993)

Metal and oxide are both suitable storage forms for plutonium (100 years).

Organics (plastics, elastomers) must be excluded from the primary container for both

forms.

Converting between metal and oxide is not recommended (negative impact of waste, cost,

environmental safety and health [ES&H] risk).

Both forms must be properly prepared and certified:

- Procedures for metal already exist (technology transfer needed).

- Procedures for oxide need development (stabilization, desorption, loss on ignition

[LOI]).

Both forms must be in sealed primary containers for extended storage:

- Positive seals (e.g., welds and metal seals) are necessary.

Seal certification or double sealing is necessary.

Requirements diverge for short-term/retrievable storage:

- Containers with metal gaskets are advantageous for metal storage.

- After stabilization, oxide is best stored in a container fitted with a rupture disk in

series with a vented stainless-steel frit container.

Surveillance of stored materials is required.

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