Re-Evaluation of the Gravity Transfer Component of the NRC Kibble Balance

We describe a project to re-evaluate the transfer of the absolute determination of the local acceleration due to gravity from a nearby site, to the center of mass of the test mass in the NRC Kibble Balance. This re-evaluation includes the characterization of the sensitivity of a relative gravity meter to the fringing magnetic flux density, as well as the attenuation provided by a simple magnetic shield.