This text emphasizes the techniques, methods and procedures of static headspace-gas chromatography (HS-GC). It covers the theory of headspace sampling as related to selection of the operational parameters, describes quantitative calibration techniques, and presents detailed methods, all adapted for automation. It includes many examples of proven practical applications--complete with original data--from the most important applications of static HS-GC in environmental analysis, polymers, packaging, pharmaceuticals, and food analysis.