基于液-液置换原理,PSMA系列超滤膜全自动孔径分析仪可测量2﹣500 nm孔径。除超滤膜外,还可测定纳滤膜、反渗透膜、分子筛膜和致密膜的微小缺陷。 Based on liquid-liquid displacement theory, the PSMA porometers measures pore size of 2﹣500 nm. Apart from ultra-filtration membranes, the pinhole defects in nano-filtration, reverse osmosis and the molecular-sieve membranes can be also analyzed.