Disinfection VS sterilization
'Disinfection' means 'eliminating or killing pathogens that survive in the external environment'. For example, tap water in cities is strictly disinfected, but it does not mean that bacteria are not allowed in tap water.
As long as there is no pathogenic bacteria in the sanitation test and the number of E. coli and other bacteria does not exceed a certain standard, even the purpose of disinfection is achieved.
The meaning of 'sterilization' is different. Sterilization is achieved by a specific method to achieve a 'completely free of all microorganisms'.
Therefore, it can be understood that the 'disinfection' treatment does not necessarily require sterilization, and the 'sterilization' not only achieves the level of disinfection, but also a sign of sterility.
In different situations and at different times, people have different needs for disinfection and sterilization. For example, barber shop utensils, bathroom towels, and even general restaurant tableware are only required to achieve preventive disinfection. Disinfection ' is fine.
However, when severely contaminated or in danger of infection, the tableware should be 'sterilized'.
In family life, melon and fruit foods, lettuce (such as jellyfish head, jellyfish skin, etc.), tableware, teacups, etc. are best disinfected; if there are infectious diseases in the family, such as dysentery and other intestinal infectious diseases, it is necessary Disinfecting his pollutants, such as feces, utensils, and utensils, sometimes even to the specialized station of the epidemic prevention station - the disinfection station to sterilize, so as not to infect others.
Here are some common disinfection methods:
First, physical disinfection
Physical disinfection is a method of using physical factors to kill pathogenic microorganisms.
Physical factors such as heat (wet heat, dry heat), microwave, infrared and ionizing radiation.
Among them, microwave and infrared rays mainly rely on the generated 'heat'. This kind of physical factor has a strong ability to kill microorganisms. Since bacteria and viruses can die in a few minutes at a temperature of 50 ° C or more, baking, baking, etc. can be used. Method to disinfect.
Disinfection requirements for tableware in the catering industry are 'boiling water into boiling water', which must be added to the bowl when the water is boiling, and then removed after the water boils.
In the family, patients with viral hepatitis or diarrhea and diarrhea, their used boiled items are boiled to disinfect, often good results.
Second, chemical disinfection
Chemical disinfection method is a method for killing pathogenic microorganisms by using disinfectant. There are many commonly used disinfecting drugs. At present, several kinds of disinfecting drugs which are relatively novel in China are:
Sodium dichloroisocyanurate, also known as 'euchlorinated net', is a novel chlorine-containing organic compound which is equivalent to bleaching powder and bleaching essence, but it has a high effective chlorine content ( About 60%), the nature is more stable than bleaching powder, and very soluble in water.
Food NET 333, Xiao Jie Ling, utensil disinfection detergent, disinfectant 303, strong tableware disinfection tablets, etc. all contain this ingredient, suitable for disinfection of fruits, vegetables, eating utensils, but not suitable for medical equipment Sterilization.
Iodophor, also known as 'Dameimei Xiaoling'. Compared with the familiar iodine, iodine solution, it has several outstanding features, namely less irritating, can be used for disinfection of skin and mucous membranes. Long time, no coloring, etc.
1. The family can also use iodophor solution to rub the skin with iodine to treat sores or early skin infections.
