DIN EN 16339

Ambient air - Method for the determination of the concentration of nitrogen dioxide by diffusive sampling; German version EN 16339:2025

Auf einen Blick

Englischer Titel

Außenluft - Bestimmung der Konzentration von Stickstoffdioxid mittels Passivsammler; Deutsche Fassung EN 16339:2025

Erscheinungsdatum

2025-06

Herausgeber

Engl. VDI/DIN-Kommission Reinhaltung der Luft (KRdL) - Normenausschuss

Zugehörige Handbücher

• VDI/DIN manual Air Pollution Pevention Volume 5: Analysis and Measurement Methods

Seitenanzahl

59

Erhältlich in

Deutsch

Kurzreferat

This document specifies a method for the sampling of NO₂ in ambient air using diffusive sampling followed by extraction and analysis by colorimetry or ion chromatography (IC). It can be used for the NO₂ measurement in a concentration range of approximately 3 μg/m³ to 130 μg/m<(hoch)3>. A sample is typically collected for a period of 1 to 4 weeks, with exposure periods depending on the design of the samplers and the concentration levels of NO₂. Several sorbents can be used for trapping NO₂ in ambient air using a diffusive sampler. This standard specifies the application of triethanolamine as the reagent. This standard describes the application of a tube-type sampler (with either a cylindrical or a slightly conical tube), a badge-type sampler and a radial-type sampler. The relative expanded uncertainty of NO₂ measurements performed using these tube-type diffusive samplers can potentially be lower than 25 % for individual measurements. When aggregating results to form annual average values, the relative expanded uncertainty can be further reduced to levels below 15 % due to the reduction of random effects on uncertainty. NOTE NO₂ passive samplers are also employed to measure NO_x with the addition of an oxidant to convert ambient NO into NO₂. A second NO₂ sampler is also deployed without the oxidant and the concentration of NO is determined from the difference of the two samplers.