FD X43-070-3

Air quality - Practical guidance for estimating the uncertainty of measurement on polluant concentration in ambient air - Part 3 : Estimation of the uncertainties on measurements of benzene conducted in situ by diffusion tube followed by a thermal desorption and a gas chromatographic analysis

Le présent document a pour objectif d'aider les utilisateurs de systèmes automatiques ou manuels de mesure de concentrations en polluants dans l'air ambiant, à déterminer l'incertitude associée aux résultats de mesurage de benzène obtenus par la méthode manuelle du tube à diffusion (Radiello ou Perkin Elmer). Son objectif est de montrer concrètement comment mener le calcul et appliquer les équations données dans le texte. Les valeurs données en exemples sont issues d'essais en laboratoire ou sont extraits des principes énoncés dans la norme NF EN 14622-4:2005.

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