This document describes a test procedure for sampling, elution, detection, and quantification of N-nitrosamines in air samples derived from a test chamber according to EN 16516:2017+A1:2020. The following N-nitrosamines are covered: -Nitrosodimethylamine, CAS No. 62-75-9, - N-Nitrosomethylethylamine, CAS No. 10595-95-6, - N-Nitrosodiethylamine, CAS No. 55-18-5, - N-Nitrosodipropylamine, CAS No. 621-64-7, - N-Nitrosodiisopropylamine, CAS No. 601-77-4, - N-Nitrosodibutylamine, CAS No. 924-16-3, - N-Nitrosopiperidine, CAS No. 100-75-4, - N-Nitrosopyrrolidine, CAS No. 930-55-2 and - N-Nitrosomorpholine, CAS No. 59-89-2.