DOE OSTI · 2202356
FY2023 Status Report: Model 9975 O-Ring Fixture Long-Term Leak Performance
Abstract
Leak testing experiments to monitor the aging performance of Viton ® GLT and GLT-S O-rings used in the model 9975 shipping package has been ongoing since 2004 at Savannah River National Laboratory. Seventy tests using mock-up 9975 primary containment vessels (PCVs) with GLT O-rings were assembled and heated to temperatures ranging from 200 to 450 °F. Due to material substitution, fourteen tests with GLT-S O-rings were initiated in 2008 and heated to temperatures ranging from 200 to 400 °F. The conditioning temperatures are elevated compared to the calculated maximum O-ring temperature in a 9975 package in storage, 158 °F, to accelerate aging and enable observations of O-ring failures in a reasonable time frame.
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Truong, Thanh-Tam T.. 2023-09-25. FY2023 Status Report: Model 9975 O-Ring Fixture Long-Term Leak Performance. https://doi.org/10.2172/2202356
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