The aim of this research is to figure out the measuring characteristics about the Large Chamber used to measuring the emission rate of chemical compounds form the home electronics and the furniture. In this paper, the influence of adsorption at wall surface on material transfer rate at each wall of sample are analyzed using CFD and the results of the case that there is wall adsorption and is not are compared and examined. And the area of 10% concentration to instantaneous uniformly diffusion concentration are reviewed and it proposed the measuring method of emission quantity of chemicals which have an adsorption characteristics from sample using the Large Chamber.
