Capacitor, series abbreviations

I’m restoring an old Tektronix 500 series scope. I’m looking to replace several of the electrolytic capacitors. In the series column, I do not understand the abbreviations. I was wondering if there’s a chart or information explaining what each abbreviation means.

Greetings,

The “series” column is a container for whatever name the supplier chooses to give a particular product line. Its chief utility is for identifying similar/adjacent products of like kind, and has no technical significance unto itself.