;Contents: Safety; Sampling; Storage of Samples; Solvents and Reagents; Extraction--(subsampling and preparation, extraction efficiency); Cleanup--(cleanup procedures, concentration of solutions, automated cleanup); Detection and Quantitation--(gas chromatography, other methods); Confirmation of Residue Identity; Sensitivity and Limit of Detection; Losses and Degradation of Pesticides; Statistical Evaluation and Reporting Results--(accuracy, precision, multiple injections, collaborative studies, reporting results); Metabolites and Degradation Products; Multicomponent Pesticides and PCB's; Reference Standards; Manuals and General References.