Popular test kit if you test every two weeks. Standard spore strip test includes a control strip. This kit comes with 26 spore strips for your autoclave and 26 spore strips for a control. Kit includes an instruction sheet, report forms, return envelopes, return postage, and spore strips. When you test your sterilizer, return the strips to our laboratory in the self-addressed stamped envelope provided. We will complete testing on your spore strips and send you a report and certificate for your wall.