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See Chinese contents: YY 0469-2023 YY 0469-2023: Sterile drainage catheters and accessory devices for single use
This document specifies the technical requirements, test methods, marks, packaging, transportation and storage for surgical masks. This document is applicable to disposable medical masks worn by medical staff in medical environments with potential risks of blood, body fluid, and secretion contamination and in invasive operating environments. This document does not apply to protective masks in medical and other working environments.
