Sampling method for swab surface
Microbiological test on the surface of objects microbiological test on the surface of objects (including work clothes) can confirm the degree of microbial contamination. In general, three methods can be used: Cotton Swab direct sampling, direct touch sampling and surface washing. When using the direct touch method, the touch disc should be placed at room temperature. The sampling area of swab swab swab surface sampling method is generally 25cm2, and the swab surface should at least include hands, wrists and legs. Direct sampling with cotton swab is suitable for irregular appearance. When sampling, hold the swab handle by hand, touch the sampling surface with an angle of 30 degrees, select S-type or Z-type slowly and rotate the cotton swab to fully scrub. If the swab head is calcium alginate, dilute hydrochloric acid solution should be used as diluent (such as 1% sodium citrate solution), so that the swab head can be completely dissolved.
Prohibited plastic products. The production and sale of ultra-thin plastic film with thickness less than 025mm and polyethylene agricultural film with thickness less than 01mm are prohibited throughout the province. The manufacture of plastic products with medical waste as raw materials shall be prohibited. We will stop the import of waste plastics in an all-round way. By the end of 2020, stop producing and selling disposable foam plastic disposable plastic swabs; stop producing daily chemical products containing plastic beads. By the end of 2022, stop the sale of daily chemical products containing plastic beads.
Umbilical cord care, in fact, do not stick any protective stickers, but every day to use iodophor press root disinfection, and then must use dry cotton swab press dry. The umbilical cord usually falls off about 10 days after birth, and some babies need longer time.
There are also many samples that can be used to determine the parents and children of children, such as hair with hair follicles (children over 5 years old are recommended), tooth brushes, etc. among them, the most recommended samples are commonly used bloodstain samples. Bloodstain samples have high DNA content, strong stability, convenient storage and strong persistence. As long as the blood drops of children's fingertips are dried in 2-3 drops on medical gauze or facial paper with a blood sampling needle, this method is convenient In addition, the child injection or go to the hospital to check the hemostatic cotton swab on the bloodstain can also try to parent-child judgment.
Finally, my mother painted strawberry and green strawberries on my clothes with a red and green swab. I drew a lot of strawberries. After a while, my Strawberry Garden was born.
Don't touch your ears, don't use cotton swab to pull out your ears, because earwax actually works! It can prevent dust and bacteria from entering your eardrum. Removing earwax can eliminate the maintenance of eardrum.
Now there are many different sizes of superfine dust-free cloth production enterprises in the market, and each manufacturer's quotation for products is also different. It is very important to find the daily management of such products, which is related to the final quality of products.
As a kind of common data, ultra-fine dust-free cloth has played a very important role in many fields. With the gradual use of various social strata, the market demand has also increased greatly, and the related information of this kind of products has been widely valued. So how to handle and use this kind of ultra-fine dust-free cloth?
At the top of the list, it's better to place the dust-free cloth of different colors and specifications separately, especially the white cloth, otherwise it will appear dyeing phenomenon, and then the price will drop in the transaction.
In addition, in the daily handling of ultra-fine dust-free cloth, we should ensure that the storage environment maintains a dry and ventilated condition. In addition, there should be no corrosive gas or liquid in the storage environment of this kind of cloth. We can put some boring agents in the indoor environment, but we must not directly stick to the cloth, otherwise it will bring certain harm.
Second, when sewing this kind of cloth, try not to use pushing, ironing, pulling and other operations. Because of the characteristics of the data itself, this operation is not good enough. Businesses in different regions need to pay attention to different details when using this kind of cloth.
Third, the usual use, if you want to do a good job in the corresponding cleaning work, then for the selection of cleaning agents, it is necessary to choose the cleaning agent products with the nature of maintenance. At present, the special detergent products for dust-free cloth on the market should not use soapy water, especially alcohol and water, both of which will lead to fiber deterioration in dust-free cloth.
Fourth, after cleaning, the ultra-fine dust-free cloth should be hung in a ventilated and cool place. Do not hang it directly in the sun or fold it. After drying, it should be laid flat. The dust-free cloth should not be piled with heavy objects.
