Net Weight Issue LLNL DOE-STD-3013 Containers

Wilk, P

关键词: CALIBRATION;    CONTAINERS;    LAWRENCE LIVERMORE NATIONAL LABORATORY;    SAFETY;   

DOI  :  10.2172/924611
RP-ID  :  LLNL-TR-400560
PID  :  OSTI ID: 924611
Others  :  TRN: US0802978

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

The following position paper will describe DOE-STD-3013 container sets No.L000072 and No.L000076, and how they are compliant with DOE-STD-3013-2004. All masses of accountable nuclear materials are measured on LLNL certified balances maintained under an MC&A Program approved by DOE/NNSA LSO. All accountability balances are recalibrated annually and checked to be within calibration on each day that the balance is used for accountability purposes. A statistical analysis of the historical calibration checks from the last seven years indicates that the full-range Limit of Error (LoE, 95% confidence level) for the balance used to measure the mass of the contents of the above indicated 3013 containers is 0.185 g. If this error envelope, at the 95% confidence level, were to be used to generate an upper-limit to the measured weight of the containers No.L000072 and No.L000076, the error-envelope would extend beyond the 5.0 kg 3013-standard limit on the package contents by less than 0.3 g. However, this is still well within the intended safety bounds of DOE-STD-3013-2004.