DOT-7A Type A packaging test and evaluation procedure Page: 39 of 77
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WHC-SD-TP-RPT-018
Revision 1
4. Examine the impact area and photograph.
5. Examine the package for loss of containment and conditions that
could result in the surface dose rate increasing more than 20
percent. Look for conditions such as compacted load or shifting
or failure of shielding. Evaluate any increase of 20 percent or
greater for significance. If the change is significant, mark the
test as "failed."
6. Evaluate the effect of the test on the package. If no degradation
to the package's effectiveness occurred, indicate "pass";
otherwise indicate "fail" and explain. Record these observations
on the appropriate test data sheet.
7. Remove the package from the test set-up and prepare it for
subsequent testing as indicated in the test plan.
7.6 FREE DROP TEST
The free drop test consists of a free-fall onto a suitable drop pad.
The impact angle and orientation of the test package is predetermined and
specified in the test plan. The drop height is predetermined, based on the
packaging mass, type of packaging material used (i.e., fiberboard or wood),
and the physical form of the material to be placed into the packaging (i.e.,
solids, liquids and/or gasses). The distance of the fall will be measured
from the lowest part of the packaging to the upper surface of the target and
is also stated in the test plan.
Complete the following steps recording all data and observations.
Indicate completion of steps on Test Data Sheet 7.6, Free Drop Test (refer to
Appendix C of this document). Use a separate test data sheet for each test
unit and/or each drop test.
7.6.1 Initial Conditions
The following initial conditions shall be established prior to the test:
1. The packaging has been marked, inspected, assembled, and closed
(with payload) per applicable portions of Section 6.0 of this
document, and as invoked by the test plan.
2. Conduct the water spray test prior to this test.7-9
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Kelly, D.L., Westinghouse Hanford. DOT-7A Type A packaging test and evaluation procedure, report, June 13, 1996; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc704256/m1/39/: accessed April 30, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.