F3 lookup from field 830 is used to verify if a series title has been entered into the database in a standardized form, and, if so, to link the bib record to that title . At present, the index searched by F3 contains a mixture of headings from fields 830 and 490 (where the non-standardized series title is entered) and headings with volume numbers (which refer to a part of a series, not the series as a whole). To best serve its purpose, the index looked up from 830 with F3 should contain and display only the fields $a, $p, and $n from field 830 (bibliographic headings or authority headings, where they have been created).