You've got a standard rapid fixer; ammonium thoisufite-based. It fixes faster than the "conventional" sodium thiosulfite fixers.

Read up on, say, Ilford Rapid Fix ( http://www.ilfordphoto.com/Webfiles/...0218312091.pdf ) and use those recommendations as a starting point.

You may or may not want to use the Ilford archival fixing sequence, which uses "film-strength" fixer for fiber-base papers. I prefer not to.

The hardener is an acid. Most of us do not use hardening fixer any longer. Unless you need hardener for very soft-emulsion films like Efke, etc. then I would not use the hardener.

If you don't use the hardener, take it to the local hazmat disposal site if you don't know how to dispose of it safely yourself.

Best,

Doremus