1. Below 10 ~ 3
B, lower than 10 ~ 5
C, lower than 10 ~ 7
D, lower than 10 ~ 9
Expand knowledge:
1, the concept of disinfection
1) disinfection refers to killing or removing pathogenic microorganisms on the media to make them harmless.
2) Physical or chemical methods are usually used to kill bacteria, so as to cut off the route of transmission and prevent pathogenic microorganisms from invading the human body and causing diseases. However, the tolerance of different microorganisms to disinfection measures is different. It is particularly important to note that bacterial spores are very tolerant to some disinfection measures, and not all disinfection measures can kill bacterial spores.
2. What is disinfection mainly used for?
Disinfection mainly uses chemical agents and physical means to kill pathogenic microorganisms in medical institutions and public places to achieve the purpose of disinfection. You can also disinfect some medical supplies, medical instruments or other media that may spread pathogenic microorganisms to eliminate pathogens attached to them. Disinfection is mainly used for medical diagnosis operation disinfection, preventive disinfection and disinfection of infectious disease patients' foci.
3. What are the types of disinfection? How to choose?
Disinfection can be divided into physical disinfection and chemical disinfection according to different operation modes, advanced disinfection, intermediate disinfection and low disinfection according to different disinfection levels, and preventive disinfection and epidemic disinfection according to different disinfection opportunities.
4. Which medical devices will be mainly used for disinfection? How to choose?
Medical instruments needed for disinfection include sprayers (such as constant sprayers and ultra-low volume sprayers), high-pressure steam disinfection equipment and ultraviolet disinfection equipment. Usually it can be selected according to the purpose of disinfection and the applicability of disinfection methods.
5. What is the development process of disinfection?
The formation and development of disinfection is promoted by the development of modern medicine, microbiology, epidemiology, chemistry, physics and other disciplines.