Stationary source emissions - Determination of the mass concentration of ammonia - Manual method (ISO 21877:2019); German version EN ISO 21877:2019— 54 стр.
Stationary source emissions -- Determination of the mass concentration of ammonia in flue gas -- Performance characteristics of automated measuring systems— 48 стр.
Uncertainty of measurement -- Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) -- Supplement 2: Extension to any number of output quantities— 84 стр.
Air quality - Measurement of stationary source emissions - Requirements for measurement sections and sites and for the measurement objective, plan and report; German version EN 15259:2007— 82 стр.
Air quality - Evaluation of the suitability of a measurement procedure by comparison with a required measurement uncertainty (ISO 14956:2002); German version EN ISO 14956:2002— 30 стр.
Water quality - Determination of dissolved Li<(hoch)+>, Na<(hoch)+>, NH<(Index)4><(hoch)+>, K<(hoch)+>, Mn<(hoch)2+>, Ca<(hoch)2+>, Mg<(hoch)2+>, Sr<(hoch)2+> and Ba<(hoch)2+> using ion chromatography - Method for water and waste water (ISO 14911:1998); German version EN ISO 14911:1999— 30 стр.
Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection (ISO 11732:2005); German version EN ISO 11732:2005— 25 стр.
Stationary source emissions - Determination of the mass concentration of ammonia - Manual method (ISO/DIS 21877:2018); German and English version prEN ISO 21877:2018
