DIN EN 16980-1:2021 Edition

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Photocatalysis – Continuous flow test methods – Part 1: Determination of the degradation of nitric oxide (NO) in the air by photocatalytic materials

Published By	Publication Date	Number of Pages
DIN	2021-12	30

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Categories: 13.040.20 - Ambient atmospheres, 87.040 - Paints and varnishes, 87.060.20 - Binders, 91.100.10 - Cement. Gypsum. Lime. Mortar, DIN

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Description

This document describes a method for assessing the performance of photocatalytic inorganic materials contained in cement mortars and/or limes or ceramic-based matrices, paints or materials deposited as thin films or coatings on a variety of substrates for the photocatalytic abatement of nitric oxide in the gas phase. This method is not suitable for the assessment of samples to be applied with flow perpendicular to the surface or flow permeating the surface itself as polymeric and paper filters, honeycomb structures and suchlike.The performance for the photocatalytic sample under test is evaluated by measuring the degradation rate of nitric oxide (NO) using the method described herein. The photocatalytic abatement rate is calculated from the observed rate by eliminating the effects of mass transfer. The intrinsic photocatalytic abatement rate is an intrinsic property of the material tested and makes it possible to distinguish the photocatalytic activities of various products with an absolute scale defined with physical and engineering meaning.For the measurements and calculations described in this standard the concentration of nitrogen oxides (NOx) is defined as the stoichiometric sum of nitric oxide (NO) and nitrogen dioxide (NO2).

Additional information

Published Code	DIN
Published By	Deutsches Institut für Normung
Publication Date	2021-12
Pages Count	30
Language	English
Descriptors	Air, Air analysis, Cement mortar, Ceramics, Coatings, Definitions, Degradation, Evaluations, Gaseous phase, Inorganic compounds, Lime, Materials, Measurement, Measuring techniques, Nitric oxide, Nitrogen oxides, Performance, Photocatalysis, Reduction, Testing, Loss
File Size	1.8 MB
ICS Codes	13.040.20 - Ambient atmospheres 87.040 - Paints and varnishes 87.060.20 - Binders 91.100.10 - Cement. Gypsum. Lime. Mortar

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DIN EN 16980-1:2021 Edition

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