Portable steam sterilizer is a common sterilization and sterilization equipment in the laboratory. It has important applications in many industries. It has the advantages of large heating area, high thermal efficiency, uniform heating, short boiling time of liquid material, and easy control of heating temperature. However, with the prolongation of use time and the aging of portable steam sterilizer equipment, the sterilization effect of the instrument will decrease, which will affect the results of other tests. Due to the dirt on the bottom of the portable steam sterilizer, it may affect the use of the device, so what are the reasons for this phenomenon?

1. Steam water

The quality indicators of steam water do not meet the standard requirements, such as silicon oxide, phosphate, chloride ions, etc. exceeding the standard, and dirt will appear on the bottom of the portable steam sterilizer after long-term sterilization.

2. Interlayer, pipeline

The material of the interlayer and pipeline is very different from carbon steel and stainless steel. When used for a long time, the chloride ions in the steam will corrode the interlayer. The steam enters the sterilizer through the interlayer and brings the rust and other pollutants inside the interlayer into the sterilizer. , to form fouling.

3. Packaging materials

Packaging materials, especially cotton, are not thoroughly rinsed during the washing process, and if there is residual cleaning solution, dirt will also form on the bottom of the portable steam sterilizer.