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原文传递 Radioactive Material Shipping Packagings and Metal-to-Metal Seals Found in the Closures of Containment Vessels Incorporating Cone-Seal Closures

题名：	Radioactive Material Shipping Packagings and Metal-to-Metal Seals Found in the Closures of Containment Vessels Incorporating Cone-Seal Closures
作者：	Loftin, G. M.; Abramczyk, G.; Smith, A. C.
关键词：	Radioactive materials##Packaging##Seals(Stoppers)##Containment##Containers##Metals##Elastomers##Closures##Hazardous materials##Leakage##Testing##Standards##Statistical analysis##
摘要：	The containment vessels for the Model 9975 radioactive material shipping packaging employ a cone-seal closure. The possibility of a metal-to-metal seal forming between the mating conical surfaces, independent of the elastomer seals, has been raised. It was postulated that such an occurrence would compromise the containment vessel hydrostatic and leakage tests. The possibility of formation of such a seal has been investigated by testing and by structural and statistical analyses. The results of the testing and the statistical analysis demonstrate and procedural changes ensure that hydrostatic proof and annual leakage testing can be accomplished to the appropriate standards.
总页数：	8
报告类型：	科技报告