scope:

This document specifies the determination of the concentration of alkanolamines in biomethane. The measurement method involves thermal desorption gas chromatography with flame ionization and/or mass spectrometry detectors (TD-GC-MS/FID). The described method is specifically developed for the analysis of five amine compounds, namely: - monoethanolamine (MEA); - diglycolamine (DGA); - diethanolamine (DEA); - N-methyldiethanolamine (MDEA); - piperazine (PZ). Information about the compounds is given in Annex A.