新型冠状病毒防护口罩过滤效率测试标准比对

Comparison of filtration efficiency standards for COVID-19 protective masks

为解决新冠疫情期间不同国家符合不同标准的防护口罩进入我国市场,造成公众对口罩过滤效率相关概念认识不科学、不全面的问题,系统介绍与比较了国内外认可度较高的GB 2626—2019、GB 19083—2010、美国42 CFR 84第K部分、EN 149:2001+A1:2009、EN 13274—7:2019等标准中过滤效率性能要求及测试方法。重点比对了这些标准中关于颗粒物过滤效率的性能要求与标记,以及测试方法中的预处理、测试条件、测试程序的异同点,并采用不同标准方法对部分口罩产品进行了试验验证。通过标准的比对研究与科学分析、实验验证,厘清防颗粒物口罩过滤效率性能要求与测试方法中的基本概念,促进社会各界全面了解国内外主流防颗粒物口罩标准中过滤效率的性能与测试方法要求,助力企业、检测机构以及政府等更好的对产品质量进行控制与监管。

Masks from different countries satisfying different standards entered the Chinese market during the COVID-19 pandemic,which led to the public misunderstanding of the concepts relating to mask filtration efficiency.This paper introduced comprehensively the highly recognized multi-national standards,including GB 2626—2019,GB 19083—2010,US 42 CFR 84 Part K,EN 149:2001+A1:2009,and EN 13274—7:2019,focusing particularly on the filtration efficiency performance requirements and testing methods.This paper compared the performance requirements and markings of the particulate filtration efficiency in these standards,as well as the similarities and differences in the pretreatment,test conditions,and test procedures in the testing methods.Three types of masks were tested against different standard methods.Through standard comparative research and analysis,together with sample test,it will help to clarify the basic concepts in the filtration efficiency performance requirements and test methods of filtering half masks to protect against particles,promote all sectors of China to comprehensively understanding the performance and test method requirements of the main mask standards at home and abroad,and help the enterprises,testing agencies and governments to better control and supervise product quality.