[en] The present report summarizes the results of research on the preparation of evaluated data for a fission barrier parameter library for isotopes with Z=82-98, with consideration of the level density models used. This activity is a part of the IAEA/NDS project on the development of a Reference Nuclear Parameter Library for Nuclear Data Computation which was initiated by the Agency with the purpose to assist the evaluators in their computational work and to encourage standardization of code input parameters. (author)