Surface area measurements of solid and powdered materials (BET, Langmuir, T-plot and other methods); pore size distribution (DFT, BJH); pore volume determination (one point) and adsorption and desorption isotherms. It includes materials such as carbon fibers, catalysts, organic materials, minerals, metal powder and ferrite composite materials, fibers, hardened foam, soil, sludge, various types of ceramic materials, etc.