醫(yī)用外科口罩新舊標準差異分析
打開文本圖片集
Difference Analysis between the Old and New Standard for Surgical Mask
CENYan
（Guizhou Lincheng Talent Dispatch Co.， Ltd.）
Abstract： This paper makes a comparative analysis of the new standard YY O469-2023，Surgical mask， and the old standard YY 469—20ll， Surgical mask， which can more intuitively understand the diferences between the old and new standards， soas tohelp enterprises and testing institutions tocarry out relevant work， and have abetter understanding of the new standard.
Keywords： surgical mask， comparative analysis， old and new standards
0 引言
醫(yī)用外科口罩能夠覆蓋佩戴者的鼻、口至下頜的屏障，主要用于防止病原體微生物、血液、飛沫、顆粒物等透過。（剩余4933字）