ABSTRACT
This chapter discusses the standardization of source-sampling procedures relative to taking the sample, chain of custody, laboratory analysis, report custody, and disposition of the original worksheets. Source sampling or emissions testing, as applied to air pollution studies, is the procedure whereby a representative sample is removed from some larger, contaminant-bearing gas stream confuted in a duct or stack. In attacking the validity of source-sampling results, the adverse party will concentrate on four main items relative to taking the sample: sampling procedure, recorded data and calculations, test equipment, and qualifications of the testing personnel. Stationary source sampling is a procedure for evaluating the characteristics of an industrial waste gas stream in a duct or stack. Contaminants in the air from the sources may be solid, liquid or gas; organic or inorganic. Additionally, because of the many and variable factors encountered in sampling gas streams, complex methods must frequently be used to obtain representative samples.
