Gas analysis - Comparison methods for determining and checking the composition of calibration gas mixtures (ISO 6143:2001); German version EN ISO 6143:2006— 39 стр.
Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method (ISO 5725-2:1994 including Technical Corrigendum 1:2002)— 97 стр.
Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 10: Permeation method (ISO 6145-10:2002); German version EN ISO 6145-10:2008— 22 стр.