Contained Materials - std301320000046

DOE-STD-3013-2000

Contamination levels up to 2000 dpm/100 cm do not pose a significant health

threat in this application.

Contamination levels up to 2000 dpm/100 cm do not limit disposal of the outer,

which could become contaminated by contacting the inner, as low level waste.

Originally (in DOE-STD-3013-94), the packaging concept was that the package

would be acceptable for both storage and transportation. It considered the

plutonium-bearing materials to be placed into a "boundary container" and that

packaged into a "primary containment vessel." The boundary container was

required to withstand 150% of the "worst case" internal pressure. The primary

containment vessel was expected to pass the same pressure test, all the DOT

tests (various drop tests, a crush test, etc.) and to be reusable. The current

concept of the 3013 package, which is only for storage, uses the boundary

container as the outer and has added a pressure indicating inner container. The

outer is not expected to be reused. In short, although the packaging concept has

changed dramatically, the criteria regarding removable contamination did not

change to reflect the different role that the inner container now fulfills.

In summary, then, allowing a slightly contaminated inner container does not

sacrifice any benefits, does not pose any new problems, and does allow correction of

an anachronism in the current criteria.

A.6.3

Contained Materials

A.6.3.1

Container Fill Gas

1. The stored material condition should not change significantly because of reactions

with the container atmosphere. If material stabilization has to be repeated, there

would be additional handling and unnecessary worker radiation exposure.

2. The container atmosphere must not act to mask leak testing and must support leak

testing.

A.6.3.2

Mass of Contained Materials

1. The mass limit for fissile materials is based on criticality safety limits for plutonium.

239

Pu that is fully water-reflected and

The fissile mass of an isolated sphere of pure