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Microbial test on the surface of an object The microbial test on the surface of an object can determine the degree of microbial contamination on the surface of an object (including work clothes). Under normal circumstances, three methods, indirect sampling with cotton swabs, direct contact sampling and surface washing, can be used. When using the direct contact method, the contact dish used should be placed at room temperature before use. .1 Cotton swab wiping surface sampling method The sampling area of ​​cotton swab wiping surface sampling method is generally 25cm2, and the surface wiping should include at least hands, wrists and legs. Indirect sampling with cotton swabs is suitable for irregular surfaces. When sampling, hold the swab handle and contact the sampling surface at an angle of 30°. Use the S-type or Z-type to slowly and rotate the cotton swab to wipe it fully. If the swab head is made of calcium alginate material, use a dilute hydrochloric acid solution as a diluent (such as a 1% sodium citrate solution) so that the swab head can be completely dissolved.

Prohibited plastic products. The production and sale of ultra-thin plastic mulch film with a thickness of less than 025 mm and polyethylene agricultural mulch film with a thickness of less than 01 mm is prohibited throughout the province. It is forbidden to use medical waste as raw materials to manufacture plastic products. The import of waste plastics is completely banned. By the end of 2020, the production and sale of disposable foamed plastic disposable plastic cotton swabs is prohibited; the production of daily chemical products containing plastic microbeads is prohibited. By the end of 2022, the sale of daily chemical products containing plastic microbeads will be prohibited.

For the care of the umbilical cord, you don’t actually need to stick any protective stickers, but you must use iodophor to disinfect the root every day, and then be sure to press and dry it with a dry cotton swab. The umbilical cord usually falls off on its own about 10 days after birth, and some babies take longer.

There are also many paternity test samples that can be used for children, such as hair with hair follicles (recommended for children over 5 years old), toothbrushes, etc. Among them, the most recommended bloodstain samples are commonly used samples. Bloodstain samples contain high DNA data content and strong stability. , Convenient storage, strong storage durability, as long as the child’s fingertip blood is dripped on medical gauze or facial tissue with a lancet, 2-3 drops are dried in the shade. In addition, there are blood stains on the hemostatic swab when the child receives an injection or goes to the hospital for examination. You can also try a paternity test.

Don’t fiddle with your ears, don’t use cotton swabs to dig out your ears, because earwax actually works! It can prevent dust and bacteria from entering your eardrum, and removing earwax eliminates the protection of the eardrum.


Post time: Jun-09-2021