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Title: EXAMINATION OF SHIPPING PACKAGES 9975-01818, 9975-01903 AND 9975-02287

Abstract

Three 9975 shipping packages were examined to investigate the non-conforming condition of an axial air gap greater than 1 inch. This condition typically indicates the presence of excess moisture in the fiberboard overpack, and may be accompanied by degradation in the fiberboard properties. The package with the largest axial air gap (9975-01818, with an air gap of 1.437 inches) was found to contain significant excess moisture, and the lower fiberboard assembly was covered with mold and was significantly degraded in strength. This condition is very similar to that observed previously in package 9975-01819. Both packages (-1818 and -1819) appear to contain a similar amount of excess moisture, which was previously estimated for 9975-01819 as {approx}2.5 liters. The condition of 9975-01818 was also evidenced by several rust spots along the bottom chime of the drum, although no significant rust was noted on the closure bolts. Packages 9975-01903 and 9975-02287 were also examined. The axial air gap in these two packages was less than in 9975-01818, but still exceeded 1 inch. These two packages contained elevated moisture levels, although not significantly higher than seen in other 'typical' packages. The fiberboard in these two packages was of sound integrity, and appeared generally consistentmore » with undegraded material. A few small patches of mold on and near the bottom of the fiberboard in 9975-01903 appeared dormant. No mold was observed on package 9975-02287. The SPA will provide recommendations on possible follow-up activities with these three packages. This might include a demonstration in SRNL of whether removal of the caplugs from similar packages would facilitate removal of excess moisture. Future efforts should also include an assessment of using the 1 inch axial gap criterion as a valid indicator of fiberboard degradation.« less

Authors:
Publication Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
969285
Report Number(s):
SRNL-STI-2009-00742
TRN: US1000177
DOE Contract Number:  
DE-AC09-08SR22470
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; CONTAINERS; INSPECTION; FASTENERS; MOISTURE; FUNGI; RECOMMENDATIONS

Citation Formats

Daugherty, W. EXAMINATION OF SHIPPING PACKAGES 9975-01818, 9975-01903 AND 9975-02287. United States: N. p., 2009. Web. doi:10.2172/969285.
Daugherty, W. EXAMINATION OF SHIPPING PACKAGES 9975-01818, 9975-01903 AND 9975-02287. United States. https://doi.org/10.2172/969285
Daugherty, W. 2009. "EXAMINATION OF SHIPPING PACKAGES 9975-01818, 9975-01903 AND 9975-02287". United States. https://doi.org/10.2172/969285. https://www.osti.gov/servlets/purl/969285.
@article{osti_969285,
title = {EXAMINATION OF SHIPPING PACKAGES 9975-01818, 9975-01903 AND 9975-02287},
author = {Daugherty, W},
abstractNote = {Three 9975 shipping packages were examined to investigate the non-conforming condition of an axial air gap greater than 1 inch. This condition typically indicates the presence of excess moisture in the fiberboard overpack, and may be accompanied by degradation in the fiberboard properties. The package with the largest axial air gap (9975-01818, with an air gap of 1.437 inches) was found to contain significant excess moisture, and the lower fiberboard assembly was covered with mold and was significantly degraded in strength. This condition is very similar to that observed previously in package 9975-01819. Both packages (-1818 and -1819) appear to contain a similar amount of excess moisture, which was previously estimated for 9975-01819 as {approx}2.5 liters. The condition of 9975-01818 was also evidenced by several rust spots along the bottom chime of the drum, although no significant rust was noted on the closure bolts. Packages 9975-01903 and 9975-02287 were also examined. The axial air gap in these two packages was less than in 9975-01818, but still exceeded 1 inch. These two packages contained elevated moisture levels, although not significantly higher than seen in other 'typical' packages. The fiberboard in these two packages was of sound integrity, and appeared generally consistent with undegraded material. A few small patches of mold on and near the bottom of the fiberboard in 9975-01903 appeared dormant. No mold was observed on package 9975-02287. The SPA will provide recommendations on possible follow-up activities with these three packages. This might include a demonstration in SRNL of whether removal of the caplugs from similar packages would facilitate removal of excess moisture. Future efforts should also include an assessment of using the 1 inch axial gap criterion as a valid indicator of fiberboard degradation.},
doi = {10.2172/969285},
url = {https://www.osti.gov/biblio/969285}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Nov 18 00:00:00 EST 2009},
month = {Wed Nov 18 00:00:00 EST 2009}
}