This is relative to the type you have. 006 is used to account for computer file or serials information that can not be accounted for in the fixed field. If the format is clear an 006 should not be needed. Computer file format information for textual computer file serials . Remember, you are accounting for the computer characteristics of a textual item here.
Serials format information for non-textual electronic serials .
From a computer file record or workform type in the home position n006 ser and fill in the appropriate information. Remember, you are accounting for the serial characteristics of a computer file here. 2. 007 - for computer files, internet resources, see OCLC Bib Format and Standards. 6. 049 - LOYY TOP 7. 130 - Uniform title.