DIN EN ISO 29463-4:2018
去除空氣中顆粒物的高效過濾器和過濾介質-第4部分:確定過濾元件泄漏的試驗方法-掃描法(ISO 29463-4:2011)
High-efficiency filters and filter media for removing particles in air - Part 4: Test method for determining leakage of filter elements - Scan method (ISO 29463-4:2011); German and English version prEN ISO 29463-4:2018