DIN EN ISO 16890-1:2017 一般通风用空气过滤器 第1部分:基于颗粒物效率(ePM)的技术规范、要求和分类系统(ISO 16890-1:2016)
Air filters for general ventilation - Part 1: Technical specifications, requirements and classification system based upon particulate matter efficiency (ePM) (ISO 16890-1:2016)