About CEN
The European Committee for Standardization is one of three European Standardization Organizations (together with CENELEC and ETSI) that have been officially recognized by the European Union and by the European Free Trade Association (EFTA) as being responsible for developing and defining voluntary standards at European level.
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Project
| Reference | EN 16980-1:2021 |
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| Title | Photocatalysis - Continuous flow test methods - Part 1: Determination of the degradation of nitric oxide (NO) in the air by photocatalytic materials |
| Work Item Number | 00386027 |
| Abstract/Scope | This document specifies 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 does not apply to 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 specified 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 document the concentration of nitrogen oxides (NOx) is defined as the stoichiometric sum of nitric oxide (NO) and nitrogen dioxide (NO2). |
| Status |
Published
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| Reference Document | |
| date of Availability (DAV) | 2021-09-15 |
| ICS | 13.040.20 - Ambient atmospheres 87.040 - Paints and varnishes 87.060.20 - Binders 91.100.10 - Cement. Gypsum. Lime. Mortar |
| A-Deviation(s) | |
| Special National Condition(s) |
Legal
| Directive(s) | |
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| Mandate(s) | |
| Citation in OJEU |
Implementation Dates
| date of Ratification (DOR) (1) | 2021-05-09 |
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| date of Availability (DAV) (2) | 2021-09-15 |
| date of Announcement (DOA) (3) | 2021-12-31 |
| date of Publication (DOP) (4) | 2022-03-31 |
| date of Withdrawal (DOW) (5) | 2022-03-31 |
Relations
| Supersedes | CEN/TS 16980-1:2016 |
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| Superseded by | |
| Normative reference (6) |
CEN/TS 16599
EN ISO 9169 ISO 7996:1985
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| Sales Points |
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(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved
(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat
(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level
(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement
(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn
(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.
In the case of undated standard, a link to the last dated version is provided.
In the case of series, a link to each standard identified in the series is provided.
We also invite you to check (via the website) whether corrigenda and/or amendments shall be read in conjunction with the main standard.