This NIST Seminar will discuss the sources of weighing errors in analytical environments, methodologies for quantifying the errors, and computation of balance calibration uncertainty. Attention will be given to error sources, selection of standards, and various calibration and testing procedures used in the balance industry. Time will be spent in hands-on exercises calibrating a variety of balances, accumulating data, and developing uncertainty budgets. The focus will then move to use of balances in an analytical environment where compliance with pharmaceutical (FDA/ USP) and international requirements will be discussed and practiced. Methodologies for process measurement assurance techniques in analytical weighing will also be covered. Participants should leave with a working knowledge of balance calibration methods, uncertainty estimation, measurement assurance concepts & minimum balance load computations that can be applied directly to their applications. This NIST Seminar is designed for beginner to advanced users of balances or calibration managers wanting a better understanding of balances and associated uncertainties in organizations where analytical weighing is an integral part of operations.
Val Miller, NIST and Mark Ruefenacht, Heusser Neweigh