Ambient air quality - Diffusive samplers for the determination of concentrations of gases and vapours - Part 3: Guide to selection, use and maintenance; German version EN 13528-3:2003— 43 стр.
Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 11: Electrochemical generation (ISO 6145-11:2005); German version EN ISO 6145-11:2008— 20 стр.
Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 8: Diffusion method (ISO 6145-8:2005); German version EN ISO 6145-8:2008— 24 стр.