NS-EN ISO 16890-3:2016
一般通风用空气过滤器 第3部分：重量效率和气流阻力与捕获的测试粉尘质量的测定（ISO 16890-3:2016）
Air filters for general ventilation — Part 3: Determination of the gravimetric efficiency and the air flow resistance versus the mass of test dust captured (ISO 16890-3:2016)