Leakage test concerns for packagings with three-O-ring closure seals

Conference · Tue Jul 01 00:00:00 EDT 1997

OSTI ID:505297

Oras, J J ^[1]; Towell, R H ^[2]; Wangler, M E ^[3]

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1. Argonne National Lab., IL (United States)
2. Eagle Research Group, Inc., Germantown, MD (United States)
3. Dept. of Energy, Germantown, MD (United States). Office of transportation, Emergency Management and Analytical Services

Recent radioactive packagings with three-O-ring closure seals, the middle O-ring being the containment seal, have the potential for false positive results from leakage rate tests. The volume between the containment O-ring and the inner O-ring is used for the helium gas required for the leakage rate tests, to reduce both the amount of helium used and the time for the tests. False positive results can be caused by either a large leakage in the containment sea/l or a leakage in the inner seal. This paper describes the problem, together with possible solutions/areas that need to be addressed in a Safety Analysis Report for Packaging.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Assistant Secretary for Energy Efficiency and Renewable Energy, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 505297
• Report Number(s): ANL/ET/CP-92858; CONF-970726-19; ON: DE97007112; TRN: 97:013382
• Resource Relation: Conference: American Society of Mechanical Engineers (ASME) pressure vessel and piping conference, Orlando, FL (United States), 27 Jul - 1 Aug 1997; Other Information: PBD: [1997]
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
CONTAINERS
SEALS
GASKETS
RADIOACTIVE MATERIALS
PACKAGING
LEAK TESTING
SAFETY ENGINEERING