An ammonium-sulfate aerosol was produced with the help of a nozzle. A study of the stability of particle generation and the dependence of the dispersed composition on the concentration of the sputtered solution was performed. A comparison was made of results of measurements of the mass concentration of a model aerosol obtained using three independent methods. It has been shown that the results agree to within 10% for aerosol concentrations less than 40 mg/m3.