Abstract / scope
The procedure is applicable to mass concentration of nitrogen monoxide present up to approximately 12,5 mg/m3 of nitrogen dioxide up to approximately 19 mg/m3 at 25 °C and 101,3 kPa.
ISO 7996:1985Published
Ambient air — Determination of the mass concentration of nitrogen oxides — Chemiluminescence method
Air ambiant — Détermination de la concentration en masse des oxydes d'azote — Méthode par chimiluminescence