W&H Helix Test Kit 250 Strips

The Helix test is a test device for type-B sterilizers. It is classified as a Process Challenge Device (PCD) for evaluating air removal and steam penetration capability of a sterilizer. It acts as a hollow body (narrow lumen/type A according to EN 13060) which, due to its physical shape, simulates the most difficult requirements for the sterilization of hollow body instruments.

• 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.
  Components
• The W&H Helix test consists of 3 main parts:
  › The Helix body contains a plastic tube with a length of 1.5 m and a diameter of 2 mm.
  › The cap hermetically seals the system and serves as a holder for
  › a chemical indicator test strip.