Determination of Mass Concentration of Particulate Material

The gravimetric method is based on the sampling of the flowing particulateloaded gas from different points across the exhaust gas duct, and the gravimetric determination of the mass of the particulate material. The sample is collected over a certain period of time from each point. The volumetric gas flow is measured. To get the result, the following steps must be performed [34]: Determine the volumetric flow of the gas.Take the particulate material sample (on filter).Adjust the sample gas flow (isokinetic sampling).Determine the volume of the sample gas.Weigh the particulate material.Calculate the concentration and the mass flow.