Figure 1 (IMAGE) National Research Council of Science & Technology Caption Comparison of pore size distribution of separation membrane: KIER separation membrane (Z75 ~ Z85), Commercial membrane (Zirfon). Credit Korea Institute of Energy Research (KIER) Usage Restrictions The sources of photos and research results from KIER must be specified. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.