This document presents the product requirements for the AGR-1 irradiation test fuel and variants. This document also describes additional fuel characterization information to be provided (to the extent possible) to support process development and process modeling activities. This specification and characterization guidance document is considered a subset of EDF-4198, Preliminary AGR Fuel Specification (Rev. 1), issued in April, 2004.1 Product requirements for AGR-1 are presented for the baseline fuel and variants for irradiation in the capsule. Process parameters for the baseline and variant particles are based on the results of a series of coating runs using natural uranium UCO kernels. These results were reviewed by the Technical Coordination Team (TCT) to select the conditions for the baseline and variant particles to be used in AGR-1 tests. Product requirements are defined for the fuel kernels, the coated particles, and the fuel compacts used for irradiation. Although complete information on individual coating layers is highly desirable, it may not be feasible for a continuous uninterrupted process. For some coating layer requirements, the property may need to be determined to the required confidence level using interrupted runs. The process parameters would then be subsequently locked for fabrication of the AGR fuel particles. Particle characterization information will be gathered recognizing the priorities set by the TCT. Characterization of coated particles to determine properties other than those specified may be performed for information only and will not represent product acceptance requirements. Product specifications with + values represent an allowable range for the mean and are not standard deviations of the specification.
