Helix test standard kit

Optimal process control of type-B sterilizers

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.

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.

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