Function
The Helix PCD is placed in the steam sterilizer along with the test strip and exposed to a test cycle. The steam must penetrate the tube and reach the end where the test strip is located.
At the end of the cycle, the test strip can be checked. For a successfully completed test, the chemical indicator must be uniformly reached by the steam for a specified time at a specified temperature (3.5 minutes at 132–137°C or 15 minutes at 121–124°C). The colour of the test strip provides information about the test result.