1、May 2017 English price group 13No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 13.040.20!%d_“2659660www.din.deDIN E
2、N 16846-1Photocatalysis Measurement of efficiency of photocatalytic devices used for the elimination of VOC and odour in indoor air in active mode Part 1: Batch mode test method in closed chamber;English version EN 168461:2017,English translation of DIN EN 16846-1:2017-05Photokatalyse Messung der Ef
3、fizienz photokatalytischer Gerte im aktiven Modus zur Beseitigung flchtiger organischer Verbindungen (VOC) und von Geruch in der Raumluft Teil 1: BatchBetriebPrfverfahren mit einer geschlossenen Kammer;Englische Fassung EN 168461:2017,Englische bersetzung von DIN EN 16846-1:2017-05Photocatalyse Mesu
4、re de lefficacit des dispositifs photocatalytiques servant llimination, en mode actif, des COV et des odeurs dans lair intrieur Partie 1: Mthode dessai en enceinte confine;Version anglaise EN 168461:2017,Traduction anglaise de DIN EN 16846-1:2017-05www.beuth.deDocument comprises 21 pagesDTranslation
5、 by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.05.17 DIN EN 16846-1:2017-05 2 A comma is used as the decimal marker. National foreword This document (EN 16846-1:2017) has been prepared by Technical Committee CEN/TC 386 “Photocatalysis” (Secret
6、ariat: AFNOR, France). The responsible German body involved in its preparation was DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing), Working Committee NA 062-02-93 AA “Photocatalysis”. In addition to the legal units of measurement, this standard also uses the unit “atm”
7、. It should be noted that the Gesetz ber Einheiten im Messwesen (German Law on units in metrology) prohibits the use of this unit for official and commercial purposes in Germany. The “physical atmosphere” (in “atm”) is a unit of measurement for pressure (in “Pa”). Conversion: 1 atm approximately equ
8、als 1,01325 105Pa. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 16000-3 DIN ISO 16000-3 ISO 16000-6 DIN ISO 16000-6 National Annex NA (informative) Bibliography DIN ISO 16000-3, Indoor air Part 3: Determination of formaldehyde and ot
9、her carbonyl compounds in indoor air and test chamber air Active sampling method DIN ISO 16000-6, Indoor air Part 6: Determination of volatile organic compounds in indoor and test chamber air by active sampling on Tenax TA sorbent, thermal desorption and gas chromatography using MS or MS-FID (ISO 16
10、000-6:2011) EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16846-1 March 2017 ICS 13.040.20 English Version Photocatalysis - Measurement of efficiency of photocatalytic devices used for the elimination of VOC and odour in indoor air in active mode - Part 1: Batch mode test method in closed cha
11、mber Photocatalyse - Mesure de lefficacit des dispositifs photocatalytiques servant llimination, en mode actif, des COV et des odeurs dans lair intrieur -Partie1 : Mthode dessai en enceinte confine Photokatalyse - Messung der Effizienz photokatalytischer Gerte im aktiven Modus zur Beseitigung flchti
12、ger organischer Verbindungen (VOC) und von Geruch in der Raumluft - Teil 1: Batch-Betrieb-Prfverfahren mit einer geschlossenen Kammer This European Standard was approved by CEN on 14 November 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditio
13、ns for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in
14、 three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standard
15、s bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia
16、, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means re
17、served worldwide for CEN national Members. Ref. No. EN 16846-1:2017 EEN 16846-1:2017 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 4 4 Symbols and abbreviations . 5 5 Principle . 5 6 Apparatus . 6 7 Test performance 6 7.1 Pollutants and concen
18、trations . 6 7.1.1 General 6 7.1.2 Indoor air . 6 7.1.3 Industrial issue and challenge 7 7.2 Validation of the chamber 7 7.3 Test conditions . 7 7.4 Test procedure . 7 7.5 Mineralization test with continuous monitoring of CO2levels . 7 7.6 Analysis of reaction by-products and ozone . 8 7.7 Olfactive
19、 efficiency of the system 8 8 Test report . 9 Annex A (informative) Schematic diagram of an air tight chamber . 10 Annex B (informative) Types of sorbent apparatus for thermal desorption cartridges . 11 Annex C (informative) Examples of a chamber blanks analysis. 12 Annex D (informative) Analysis of
20、 the reaction mixture 13 Annex E (informative) Example of a plot of temperature and relative humidity, as well as developments in pollutants and CO2. 14 Annex F (informative) Example of test at low concentration with formaldehyde 16 Annex G (informative) CADR calculation 17 Annex H (informative) Cal
21、culation of CADR 19 DIN EN 16846-1:2017-05 EN 16846-1:2017 (E) 3 European foreword This document (EN 16846-1:2017) has been prepared by Technical Committee CEN/TC 386 “Photocatalysis”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard,
22、 either by publication of an identical text or by endorsement, at the latest by September 2017, and conflicting national standards shall be withdrawn at the latest by September 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.
23、 CEN shall not be held responsible for identifying any or all such patent rights. EN 16846, Photocatalysis Measurement of efficiency of photocatalytic devices used for the elimination of VOC and odour in indoor air in active mode, is dedicated to photocatalytic devices for indoor air cleaning and is
24、 constituted by the following parts: Part 1: Batch mode test method in closed chamber; Part 2: In situ test under real conditions . According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austri
25、a, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain,
26、 Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 16846-1:2017-05 N1)National footnote: Part 2 is not yet available. N1)EN 16846-1:2017 (E) 4 1 Scope This European Standard describes the methodologies to be used in a laboratory air tight chamber to test prototype or commercial air cleaner
27、systems with a maximum flow rate of 1,000 m3/h used for photocatalytic indoor air remediation. It is applicable to the treatment of atmospheres that are representative of the air inside buildings and workplaces. This protocol is applicable solely to photocatalytic systems alone or to combined system
28、s that include a photocatalytic function. The photocatalytic function is demonstrated by verifying the mineralization of model VOCs to form CO2. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application.
29、 For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13725, Air quality - Determination of odour concentration by dynamic olfactometry EN ISO 16017-1:2000, Indoor, ambient and workplace air
30、 - Sampling and analysis of volatile organic compounds by sorbent tube/thermal desorption/capillary gas chromatography - Part 1: Pumped sampling (ISO 16017-1:2000) ISO 16000-3, Indoor air Part 3: Determination of formaldehyde and other carbonyl compounds in indoor air and test chamber air Active sam
31、pling method ISO 16000-6:2011, Indoor air Part 6: Determination of volatile organic compounds in indoor and test chamber air by active sampling on Tenax TA sorbent, thermal desorption and gas chromatography using MS or MS-FID 3 Terms and definitions For the purposes of this document, the following t
32、erms and definitions apply. 3.1 photocatalyst substance that performs one or more functions based on oxidation and reduction reactions under photoirradiation, including decomposition and removal of air and water contaminants, deodorization, and antibacterial, self-cleaning and antifogging actions 3.
33、2 volatile organic compounds VOC all three classes of VOC as per EN ISO 16000-6:2011, 3.1,3.2 and 3.3 3.3 system commercial or prototype air cleaner system that includes at least one photocatalytic function with or without a fan function 3.4 chamber blank analysis value of an analysis of the composi
34、tion of the air inside the air tight chamber with no air cleaner system inside the chamber and after venting by taking sampling on special cartridge for VOC and aldehyde DIN EN 16846-1:2017-05 EN 16846-1:2017 (E) 5 3.5 test blank analysis value of an analysis of the composition of the air inside the
35、 air tight chamber with an air cleaner system operating inside the chamber, but with no pollutant introduced, by taking sampling on special cartridge for VOC and aldehyde 3.6 cartridge blank analysis value of an analysis of the sorbent cartridge prior to use for the analysis of reaction by-products
36、3.7 TWA time-weighted average, measured or estimated over an 8-hour work schedule 3.8 Short-Term Exposure Limit STEL ceiling value that should never be exceeded in an occupational environment where these values are measured during a maximum period of 15 min Note 1 to entry: TLV (threshold limit valu
37、e) is replaced by STEL. 3.9 indoor air air inside a closed environment 3.10 mineralization of model VOCs oxidation of model VOCs to form CO24 Symbols and abbreviations ln : natural logarithm PE : polyethylene PMMA : Poly(methyl methacrylate) ppbv : parts per billion in volumes 109 ppmv : parts per m
38、illion in volumes 106 PTFE : Polytetrafluoroethylene RH : relative humidity 5 Principle The system is placed inside an air tight chamber and exposed to a model VOC mixture. Changes in pollutant concentrations due to operation of the system, as well as the production of CO2and the appearance of by-pr
39、oducts, are measured against time. DIN EN 16846-1:2017-05 EN 16846-1:2017 (E) 6 6 Apparatus Standard laboratory apparatus, in addition to the following elements: 6.1 Air tight chamber. Air tight chamber with a volume of at least one m3fitted with an air homogenizing device with a nominal hourly flow
40、 rate (m3/h) 100 times greater than the volume of the chamber. The ratio between the system volume and the chamber volume shall be less than or equal to 0,10 (see Figure A.1 in Annex A). The chamber has sampling ports and throughputs for electrical connections. The behaviour of the material used to
41、build the chamber in relation to pollutants, UV radiation, sorption and degassing phenomena shall be known and controlled. Examples of materials: glass, PMMA, PE, PTFE, stainless steel, etc. 6.2 Analysis apparatus. All apparatus used for continuous monitoring of the air composition inside the chambe
42、r in the concentration range specified in Clause 6 can be used with a detection limit at around 5 ppbv for the test conditions stated in 7.1.2, or at 10 % of the initial concentration of the relevant pollutants as specified in 7.1.3. Analyses of reaction by-products are performed according to the me
43、thods adapted to the characterization of the indoor air quality. Reference will be made to the following standards: ISO 16000-3 and ISO 16000-6; A description of a few sorbents are included in Annex B of this standard. See also EN ISO 16017-1:2000, Annexes C, D and E. Temperature and relative humidi
44、ty are analysed on line by appropriate analysers. 7 Test performance 7.1 Pollutants and concentrations 7.1.1 General There are two possible concentration ranges depending on the outcome of the test. For the cleaning of indoor air, the test is carried out in the range ppbv to ppmv. Where the issue is
45、 directly related to the exposure of workers, the concentration will be related to the TWA and STEL of the relevant products. 7.1.2 Indoor air This standard requires the use of the following mixture (pollutants representative of the chemical families found in the indoor air pollution): Acetone, acet
46、aldehyde, heptane, toluene and formaldehyde. The test is to be run on both concentrations. test with search for reaction by-products: (50 25 %) ppbv per compound at 22 C and 1 atm. test used to demonstrate the photocatalytic activity with monitoring of the mineralization of VOCs into CO2: (1 000 10
47、%) ppbv per compound at 22 C 1Patm. DIN EN 16846-1:2017-05 N2)National footnote: Here is an incorrect reference to Clause 6 it should read “Clause 7”. N2)EN 16846-1:2017 (E) 7 NOTE According to the present state of knowledge of analytical techniques, this test is the only means of monitoring the con
48、version into CO2 against ambient concentration. 7.1.3 Industrial issue and challenge Concentrations and pollutants will be chosen to reflect the issues and challenges currently facing the industrial sector. VOCs will undergo compound-by-compound analysis (e.g. by gas chromatography). NOTE According
49、to the present state of knowledge of analytical techniques, this test is the only means of monitoring the conversion into CO2 against ambient concentration. 7.2 Validation of the chamber The chamber is validated by measuring its leak tightness via its leakage rate of an inert gas or by pollutant mixture disappearance. It is necessary to check that the air homogenizing fan does not generate VOCs. The amount of VOCs released
