This analytical method is a validated measurement procedure for the determination of p-chloroaniline [106-47-8] after personal or stationary sampling. Sampling is performed by drawing a defined volume of air through two acid-impregnated glass fibre filters using a suitable flow-regulated pump. After liquid desorption, the p-chloroaniline retained on the filters is analysed using gas chromatography with mass spectrometry. The relative limit of quantification is 0.0037 mg/m3 for an air sample volume of 240 l. The mean recovery for p-chloroaniline is 99.9%. The concentration-dependent expanded uncertainty is at most 27%. This analytical method has been accredited by the accident insurance companies for the detection in workplace air of substances that are carcinogenic, mutagenic or toxic to reproduction. This method has been tested and recommended for the determination of p-chloroaniline in work areas by the German Social Accident Insurance (DGUV). Both personal and stationary sampling can be performed for measurements in order to evaluate work areas.