Primary Credit Analysts: Elissa S Granick, New York, (1) 212-438-2012 Mary Jane Ziga, (1) 212-208-1353 The rating on Philadelphia Industrial Development Authority's bonds, issued for the Chemical Heritage Foundation Project, is based on an irrevocable direct pay LOC issued by First Union National Bank. The LOC covers full principal plus 51 days' interest payable at a maximum rate of 12% on the bonds. The LOC expires on May 1, 2003 unless extended or earlier terminated pursuant to its terms. Chemical Heritage is a non-profit educational foundation. Bond proceeds will be used to finance renovations to the foundation's headquarters, library, and study areas and to provide infrastructure for a museum and public space. The bonds will be offered in the weekly