AS-3012 is a BET Analyzer that performs surface area analysis on ISO 9277 Determination of the specific surface area of solids by gas adsorption using the BET method, the principle of the popular physical adsorption isotherms, specifically static volumetric method by full computer control without human monitoring. AS-3012 automatic surface area and pore size analyzer (nitrogen unit system), can analyze two samples and prepare two samples simultaneously, the unit operates in English Windows XP system, the instrument can perform a single point, multi-point BET surface area, BJH mesoporous, pore distribution, pore size and total pore volume and area, and the average pore size, range of specific surface area from 0.01m 2 / g to no limit, range of pore size 0.35-400nm, it can be used in many applications.