ABSTRACT
This chapter outlines the various sampling and analysis methods and procedures for stack testing. The sampling and analysis is done to verify the calculation and material balance. Before sampling, information pertaining to the process or equipment to be sampled must be gathered. This would include a site survey for adequacy and accessibility of sampling location, personnel expertise, literature searches and a sampling plan. Stack sampling equipment is generally bulky, and the actual sampling locations are often difficult. Although bulky equipment is employed under adverse conditions, laboratory precision must be exercised in the conduct of the sampling runs if the data is to be meaningful. In stack sampling for particulates, the "measuring" tool is a sample probe, which is inserted in the stack to withdraw a gas sample. The effect of this probe on the measured particle properties is minimized by resorting to isokinetic sampling.
