Lin Bingyue，Feng Peiming，X u L ida，Zhang L iqun *

（ Institute of Environmental Health and Engineering，Beijing 100050；China Electronics Engineering Design Institute，Beijing 100840）

Abstract

A HEPA，ULPA filter media DOP tester is developed.It adopts evaporation condensation method （hot DOP） .It is different from the national standard of oilmist or sodium flame method.T his tester is of more speciality and a great advantage for studying of filter media performance，and provides a new standard method for measuring filter media .The construction，performance of tester and its application are introduced in this paper.

Keywords：filter；filter media performance；tester

DOI：10.13732/j.issn.1008-5548.1999.03.001