What are the uses of medical absorbent cotton? What are the production standards for medical absorbent cotton?

1. Use of medical absorbent cotton
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Medical absorbent cotton is a kind of cotton that has been chemically treated. Compared with cotton in daily life, it is easier to absorb liquid and belongs to a medical product. Medical absorbent cotton can not only stop bleeding, carry out hygienic care, but also clean the body. It is a clean, safe and convenient medical product.
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It is worth noting that this medical absorbent cotton can only be used once, and it must be disposed of after use. If the package is broken, it cannot be used continuously, and the unpacked product should be placed in a clean, cool, and dry place. Because the country's requirements for medical absorbent cotton are very strict, each batch of products will be sampled and tested. Only when all items are qualified can they leave the factory. Otherwise, continue to test. In hospitals and homes, soaking medical absorbent cotton in 75% alcohol solution can be made into sterile cotton balls for daily use. It has a good effect on disinfection and sterilization and removal of dirt.

2. Production standard of medical absorbent cotton
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1. Character
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Medical absorbent cotton should be soft and elastic white fibers, without stains, stains and foreign bodies, odorless and tasteless.
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2. Whiteness
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The whiteness of medical absorbent cotton should not be less than 80 degrees.
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3. Water soluble matter
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The residue left in 100mL of the test solution should be less than 0.5%.
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4. Acidity and alkalinity
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Add phenolphthalein indicator to 100mL of the test solution, it should not appear pink, and add bromocresol purple indicator should not appear yellow.
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5. Easy to oxidize
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Add potassium permanganate test solution to 40mL of test solution, the red color shall not disappear completely.
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6. Water absorption time
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The medical absorbent cotton should sink below the liquid level within 10S.
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7. Water absorption
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The water absorption per gram of sample should not be less than 23g.
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8. Soluble matter in ether
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The residue left in 100mL of the test solution should be less than 0.5%.
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9. Fluorescent substances
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Observation of medical absorbent cotton under ultraviolet light only allows microscopic brown-purple fluorescence and a few yellow particles, except for a few separated fibers, it should not show strong blue fluorescence.
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10. Loss on drying
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Take 2g of medical absorbent cotton and dry it to constant weight, and the weight loss should not exceed 8.0%.
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11. Burning residue
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Take 2g of medical absorbent cotton and dry it to constant weight, and the residual residue in the test product shall not be greater than 0.5%.
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12. Surface active substances
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The surface active substance foam in the test solution shall not exceed 2mm.
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13. Sterile
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Aseptically supplied medical absorbent cotton products should undergo a validated sterilization process.
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Note: GB-18278, GB-18279, GB-18280 stipulate the confirmation and process control requirements of the corresponding sterilization process
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14. Residual amount of ethylene oxide
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If ethylene oxide is used in medical absorbent cotton products, the residual amount of ethylene oxide should not exceed 10mg/kg. Medical absorbent cotton has a high adsorption capacity for ethylene oxide. Due to the toxic effect of ethylene oxide on the human body, it is not recommended. Sterilized with ethylene oxide.