TST Load Check Control Indicator 134°C – 3.5 min

The TST Load Check Control Indicator is used to verify steam penetration in actual sterilization loads during steam sterilization. The system is designed as a Process Challenge Device (PCD) and combines a helical design with TST Control indicators to simulate critical sterilization conditions.

Unlike traditional tests conducted in an empty chamber, the Load Check is placed at the center of the load, where steam penetration is most challenging. This allows for a direct assessment of whether sterilization conditions have actually been achieved where they are most critical.

The system is based on a helical barrier through which steam must pass through a long, narrow lumen to reach the indicator. When the correct combination of temperature, time, and saturated steam is achieved, a distinct color change from yellow to blue/purple occurs. An uneven or absent color change indicates insufficient steam penetration and that the load cannot be considered sterile.

The product is used to support decisions regarding the release of sterilized goods and is particularly relevant in processes involving complex instruments, gaskets, or containers where penetration is critical.

The system comes complete with a helix unit and single-use indicators.

Features

• Verifies steam penetration at the center of load
• Helix-PCD for simulating hollow instruments (lumen)
• A distinct color change from yellow to blue/purple
• Designed for decisions regarding the release of sterilized goods
• Combines PCD and Class 6 indicators in a single system
• Comes with a helix unit and indicators
• Suitable for routine process control in sterilization technology