| BOWIE & DICK | HELIX | PRION |
| Has to be carried out once every day, in an empty autoclave,
on a specific Bowie & Dick cycle |
Has to be carried out once every day, in an empty autoclave,
on a specific Helix cycle |
Has to be carried out on each autoclave cycle: A Prion test must be put inside each sterilization pouch to guarantee the sterilization to Prions. |
| Tests the steam quantity spread inside the autoclave | Tests the steam quantity spread inside the autoclave | Tests the presence of Prion proteins, responsible for the Kreutzfeld-Jacob disease |
| = a small pouch which contains 10 layers of thick cardboard | = a 1.5 m long tube closed at one end and open at the other end | |
| The test : A sheet printed with heat-sensitive ink can be found at the center of the layers | The test : There is a capsule positioned at the closed end. The paper slip printed with heat-sensitive ink can be found inside the capsule | The test : Small paper slip printed with heat-sensitive ink |
| Yellow to black color change | Yellow to black color change | Yellow to black color change |
