(2) Medical gauze packaged in a sterile manner can be used directly, while gauze packaged in a non-sterile manner must be sterilized by high-temperature and high-pressure steam or ethylene oxide and other methods before use.
(3) For medical gauze packaged in a sterile manner, the packaging mark must state the sterilization expiration date, the factory date or production lot number, the instructions or signs for disabling package breakage, and the instructions for one-time use or signs for prohibiting re-use. If the package is found to be damaged or exceed the expiration date, it will no longer be purchased or used.
(4) The purchase of medical gauze is to look at the appearance of the product. The product should be soft, odorless, tasteless, pure white color, does not contain other fibers and processing substances, in the ultraviolet light should not show strong blue fluorescence.