Biological Test Pack and Culture Service Program. Fast: 48 hour lab turnaround time, Simple: Place on test pack in your sterilizer every week (or more frequently if you desire). Reliable: spore testing is one of the most dependable methods to monitor sterilization. Convenient: a complete system that is ready to use. Biological indicators in test packs, preaddressed postage paid envelopes and report forms are provided for efficient sample handling. No additional equipment to buy. Versatile: the test pack can monitor Steam, Dry Heat or Ethylene Oxide. Documented: you will be provided with a permanent record of test results. Dispenser box of 10 tests.