Year
1990
Abstract
Accurate weighing is essential in the processing and transactions of nuclear materials- Nuclear facilities control the mass measurement process through periodic inspection and calibration of their balances and scales with traceable mass standards, keeping appropriate records available for audit. To meet its purpose, the calibration and validation process needs to be supported by a knowledge of the working principles of the equipment and how they manifest themselves in its performance. This paper discusses the basic principles, features and performance specifications of modern weighing equipment and gives the essentials in assuring the accuracy of the weighing process- Examples will show how a manufacturer interprets metrological performance specifications, how an examiner may assess and validate balances and scales, and how the user will achieve the process objective: accurate weight.