高效过滤器大气尘检漏浓度的研究——国标《洁净室施工及验收规范》编制组研讨系列课题之五
Experimental research on atmospheric dust leakage of HEPA filters: part 5 of the series of research practice of the national standard task group for the Code for cleanroom construction and acceptance
摘要：
实测了人扎针孔0.6 mm和1.0 mm时高效过滤器对于大气尘的泄漏浓度，当上游大气尘浓度只有300~400粒/L时，下游仍可测出5~10粒/L的泄漏。
关键词：高效过滤器,大气尘浓度,检漏
Abstract：
Uses atmospheric dust as upstream aerosol challenge and pricks a pinhole of diameter 0.6 mm or 1.0 mm on a HEPA filter. The results show that leakage can still be detected with 5~10 particles per liter sampled downstream when the upstream concentration is as low as 300~400 particles per liter.
Keywords:HEPA filter, atmospheric dust concentration, leakage test