V-Sorb 4800P is R&D by Gold APP Instruments China for mesopore and micropore nanomaterials surface area and pore size related characteristics analyzing, including langmuir surface area, single and multi point surface area, BJH pore size, pore volume, pore size distribution, SF,MP,HK,DR,DA etc pore size determination. Visit http://www.app-one.com.cn/eng/productsInfo.aspx?parentid=945&catid=947&newsid=957 to find more.