Explore this product Overview Type 2 Chemical Indicators Cost-effective and reliable autoclave monitoring and routine control. WTL198-0159 Helix-PCD + Bowie-Dick simulation test strips kit For monitoring vacuum-assisted steam sterilizers Autoclave release for hollow loads in large and small vacuum-assisted steam sterilizers Conditions: Bowie-Dick cycle, 3.5 minutes at 134°C WTL198-0161 Helix-PCD + chemical indicator test strips kit For safe release of hollow loads Process Challenge Device for Steam sterilization process control Conditions: 18 mins at 134°C WTL198-0158 Bowie-Dick test pack chemical indicator For detecting inadequate air removal and steam penetration Test pack for vacuum-assisted steam sterilizers Conditions: 16.9 mins at 121°C; 4 mins at 132°C; 3.5 minutes at 134°C WTL198-0160 Helix-PCD + chemical indicator test strips kit For safe release of hollow loads Process Challenge Device for steam sterilization processes control Conditions: 3.5 mins at 134°C