Here's a link to the Kodak chemistry site that deals with process control. If you go the processing manuals section, you can get to pdf versions of the Z books. They explain how to set up your process, use the control strips etc. and there's also info on that site about dealing with low volume usage for the chemistry.

fwiw, control strips are pre-exposed film or paper from the manufacturer. they come in emulsion lots just like film does. kodak ships theirs same day packed in dry ice or packed with one of those frozen gel bags . you get them & store them immediately in a freezer, and every day you just pull out what you need. The box , comes with a reference strip that you read & apply certain factors to (for the emulsion of the strip)--these are the values you aim for and check your daily plots against.