Nuclear fuel technology — Guide to the measurement of the specific surface area of uranium oxide powders by the BET method

IS0 12800:2003 covers the determination of the specific surface area of as-fabricated uranium dioxide powder by volumetric or gravimetric determination of the amount of nitrogen adsorbed on the powder, and can be applied to other similar materials, e.g. U₃0₈, UO₂-PuO₂ powders, and other bodies with similar surface areas, e.g. powder granules or green pellets, provided that the conditions described are fulfilled. Modifications using other adsorbing gases are included.