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 with a closed chamber

This part describes the methodologies to be used in a laboratory air tight chamber to test prototype or commercial air cleaner systems with a maximum flow rate of 1,000 m³/h used for the indoor air remediation.
It applies to the treatment of atmospheres that are representative of the air inside buildings and workplaces.
This protocol applies solely to photocatalytic systems alone or to combined systems that include a photocatalytic function.
This photocatalytic function is demonstrated by verifying the mineralisation of model VOCs to form CO2.

Photokatalyse - Batch-Betrieb-Prüfverfahren - Teil 1: Messung der Effizienz photokatalytischer Geräte im aktiven Modus zur Beseitigung flüchtiger organischer Verbindungen (VOC) und von Geruch in der Raumluft

Diese Europäische Norm beschreibt die Verfahren, die in einer luftdicht verschlossenen Laborkammer angewendet werden, um einen Prototyp oder kommerzielle Luftreinigersysteme mit einer maximalen Durchflussrate von 1 000 m3/h zu prüfen, die bei der Raumluftsanierung zum Einsatz kommen.
Sie gilt für die Behandlung von Atmosphären, die für die Luft in Gebäuden und am Arbeitsplatz repräsentativ sind.
Dieses Dokument gilt ausschließlich für photokatalytische Systeme oder kombinierte Systeme, die eine photokatalytische Funktion einschließen. Diese photokatalytische Funktion wird durch den Nachweis der Mineralisierung von VOC-Modellen zu CO2 verifiziert.

Photocatalyse - Méthodes d'essai par lots - Partie 1 : Mesure de l'efficacité des dispositifs photocatalytiques servant à l'élimination, en mode actif, des COV et des odeurs dans l'air intérieur

La présente Norme européenne décrit les méthodologies à mettre en oeuvre, au niveau laboratoire en enceinte confinée, pour soumettre à essai des prototypes ou des systèmes commerciaux d’épuration d’air ayant un débit maximal de 1 000 m3/h dans le cadre de l’épuration de l’air intérieur par photocatalyse.
Elle s’applique au traitement d’atmosphères qui sont représentatives de l’air à l’intérieur des bâtiments et des lieux de travail.
Le présent protocole est applicable uniquement à des systèmes purement photocatalytiques ou à des systèmes mixtes comportant une fonction photocatalytique. Cette fonction photocatalytique est mise en évidence par vérification de la minéralisation des COV modèles en CO2.

Fotokataliza - Merjenje učinkovitosti fotokatalitičnih naprav, ki se uporabljajo za aktivno odstranjevanje VOC in smradu iz zraka v zaprtih prostorih

Ta del opisuje metodologije, ki se uporabljajo v laboratorijski komori, neprepustni za zrak, s katerimi se preskušajo prototipi ali komercialni sistemi za čiščenje zraka z najvišjim pretokom 1000 m³/h, ki se uporabljajo za sanacijo zraka v zaprtih prostorih.  Uporablja se za obdelavo atmosfer, ki predstavljajo zrak v stavbah in na delovnih mestih.  Ta protokol se uporablja izključno za same fotokatalitske sisteme ali kombinirane sisteme, ki vključujejo fotokatalitsko funkcijo.  Ta fotokatalitska funkcija se ugotavlja s preverjanjem mineralizacije modela hlapnih organskih spojin, ki tvorijo CO2.

General Information

Status
Published
Public Enquiry End Date
30-May-2015
Publication Date
27-Mar-2017
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
09-Mar-2017
Due Date
14-May-2017
Completion Date
28-Mar-2017

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 16846-1:2017
01-maj-2017
)RWRNDWDOL]D0HUMHQMHXþLQNRYLWRVWLIRWRNDWDOLWLþQLKQDSUDYNLVHXSRUDEOMDMR]D
DNWLYQRRGVWUDQMHYDQMH92&LQVPUDGXL]]UDNDY]DSUWLKSURVWRULK
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 with a closed chamber
Photokatalyse - Batch-Betrieb-Prüfverfahren - Teil 1: Messung der Effizienz
photokatalytischer Geräte im aktiven Modus zur Beseitigung flüchtiger organischer
Verbindungen (VOC) und von Geruch in der Raumluft
Photocatalyse - Méthodes d'essai par lots - Partie 1 : Mesure de l'efficacité des
dispositifs photocatalytiques servant à l'élimination, en mode actif, des COV et des
odeurs dans l'air intérieur
Ta slovenski standard je istoveten z: EN 16846-1:2017
ICS:
13.040.20 Kakovost okoljskega zraka Ambient atmospheres
SIST EN 16846-1:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 16846-1:2017

---------------------- Page: 2 ----------------------

SIST EN 16846-1:2017


EN 16846-1
EUROPEAN STANDARD

NORME EUROPÉENNE

March 2017
EUROPÄISCHE NORM
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 chamber
Photocatalyse - Mesure de l'efficacité des dispositifs Photokatalyse - Messung der Effizienz
photocatalytiques servant à l'élimination, en mode photokatalytischer Geräte im aktiven Modus zur
actif, des COV et des odeurs dans l'air intérieur - Partie Beseitigung flüchtiger organischer Verbindungen
1 : Méthode d'essai en enceinte confinée (VOC) und von Geruch in der Raumluft - Teil 1: Batch-
Betrieb-Prüfverfahren 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 conditions 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 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 standards 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, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16846-1:2017 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------

SIST EN 16846-1:2017
EN 16846-1:2017 (E)
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 concentrations . 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
levels . 7
7.5 Mineralization test with continuous monitoring of CO2
7.6 Analysis of reaction by-products and ozone . 8
7.7 Olfactive 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 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) Calculation of CADR . 19

2

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SIST EN 16846-1:2017
EN 16846-1:2017 (E)
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, 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. 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 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: 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, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

3

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SIST EN 16846-1:2017
EN 16846-1:2017 (E)
1 Scope
This European Standard describes the methodologies to be used in a laboratory air tight chamber to test
3
prototype or commercial air cleaner systems with a maximum flow rate of 1,000 m /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 systems that include a
photocatalytic function. The photocatalytic function is demonstrated by verifying the mineralization of
model VOCs to form CO .
2
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. 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 - 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 sampling 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 terms 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
3.2
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 composition 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
4

---------------------- Page: 6 ----------------------

SIST EN 16846-1:2017
EN 16846-1:2017 (E)
3.5
test blank analysis
value of an analysis of the composition of the air inside the 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
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 value) 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 CO2
4 Symbols and abbreviations
ln : natural logarithm
PE : polyethylene
PMMA : Poly(methyl methacrylate)
−9
ppbv : parts per billion in volumes [10 ]
−6
ppmv : parts per million in volumes [10 ]
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 CO and the appearance of by-
2
products, are measured against time.
5

---------------------- Page: 7 ----------------------

SIST EN 16846-1:2017
EN 16846-1:2017 (E)
6 Apparatus
Standard laboratory apparatus, in addition to the following elements:
6.1 Air tight chamber.
3
Air tight chamber with a volume of at least one m fitted with an air homogenizing device with a nominal
3
hourly flow rate (m /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 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 chamber in the concentration
range specified in Clause 6 can be used with a detection lim
...

SLOVENSKI STANDARD
oSIST prEN 16846-1:2015
01-maj-2015
)RWRNDWDOL]D0HWRGHSUHVNXãDQMDSRORWLKGHO0HUMHQMHXþLQNRYLWRVWL
IRWRNDWDOLWLþQLKQDSUDYYDNWLYQHPQDþLQX]DRGSUDYOMDQMHKODSQLKRUJDQVNLKVSRMLQ
92& LQYRQMDYL]QRWUDQMHJD]UDND
Photocatalysis - Batch mode test methods - Part 1: Measurement of efficiency of
photocatalytic devices used for the elimination of VOC and odour in indoor air in active
mode
Photokatalyse - Batch-Betrieb-Prüfverfahren - Teil 1: Messung der Effizienz
photokatalytischer Geräte im aktiven Modus zur Beseitigung flüchtiger organischer
Verbindungen (VOC) und von Geruch in der Raumluft
Photocatalyse - Méthodes d'essai par lots - Partie 1 : Mesure de l'efficacité des
dispositifs photocatalytiques servant à l'élimination, en mode actif, des COV et des
odeurs dans l'air intérieur
Ta slovenski standard je istoveten z: prEN 16846-1
ICS:
13.040.20 Kakovost okoljskega zraka Ambient atmospheres
oSIST prEN 16846-1:2015 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 16846-1:2015

---------------------- Page: 2 ----------------------
oSIST prEN 16846-1:2015

EUROPEAN STANDARD
DRAFT
prEN 16846-1
NORME EUROPÉENNE

EUROPÄISCHE NORM

February 2015
ICS 13.040.20
English Version
Photocatalysis - Batch mode test methods - Part 1:
Measurement of efficiency of photocatalytic devices used for the
elimination of VOC and odour in indoor air in active mode
Photocatalyse - Méthodes d'essai par lots - Partie 1 : Photokatalyse - Batch-Betrieb-Prüfverfahren - Teil 1:
Mesure de l'efficacité des dispositifs photocatalytiques Messung der Effizienz photokatalytischer Geräte im aktiven
servant à l'élimination, en mode actif, des COV et des Modus zur Beseitigung flüchtiger organischer Verbindungen
odeurs dans l'air intérieur (VOC) und von Geruch in der Raumluft
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 386.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in 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 standards 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16846-1:2015 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
oSIST prEN 16846-1:2015
prEN 16846-1:2015 (E)
Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Principle .5
5 Apparatus .5
5.1 Air tight chamber .5
5.2 Analysis apparatus: .5
6 Test performance .6
6.1 Pollutants and concentrations .6
6.1.1 General .6
6.1.2 Indoor air .6
6.1.3 Industrial issue and challenge .6
6.2 Validation of the chamber .6
6.3 Test conditions .7
6.4 Test procedure .7
6.5 Mineralisation test with continuous monitoring of CO levels .7
2
6.6 Analysis of reaction by-products and ozone .7
6.7 Olfactive efficiency of the system .8
7 Test report .8
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) Example of a chamber blank . 13
Annex D (informative) Analysis of the reaction mixture . 15
Annex E (informative) Example of a plot of temperature and relative humidity, as well as
developments in pollutants and CO . 17
2
Annex F (informative) Example of test at low concentration with formaldehyde . 19
Annex G (informative) CADR calculation . 20

2

---------------------- Page: 4 ----------------------
oSIST prEN 16846-1:2015
prEN 16846-1:2015 (E)
Foreword
This document (prEN 16846-1:2015) has been prepared by Technical Committee CEN/TC 386 “Photocatalysis”,
the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
3

---------------------- Page: 5 ----------------------
oSIST prEN 16846-1:2015
prEN 16846-1:2015 (E)
1 Scope
This part of this European Standard describes the methodologies to be used in a laboratory air tight chamber to
test prototype or commercial air cleaner systems with a maximum flow rate of 1,000 m³/h used for the indoor air
remediation.
It applies to the treatment of atmospheres that are representative of the air inside buildings and workplaces.
This protocol applies solely to photocatalytic systems alone or to combined systems that include a photocatalytic
function.
This photocatalytic function is demonstrated by verifying the mineralisation of model VOCs to form CO .
2
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable
for its application. 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 - 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 sampling method
ISO 16000-4, Indoor air — Part 4: Determination of formaldehyde — Diffusive sampling method
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
3 Terms and definitions
For the purposes of this part, the following terms 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
3.2
volatile organic compounds
3 classes of volatile organic compounds defined by the WHO:
— Semi-volatile (SVOC): compounds with a boiling point between (240 °C to 260 °C) and (380 °C to 400 °C)
— Volatile (VOC): compounds with a boiling point between (50 °C to 100 °C) and (240 °C to 260 °C)
— Very volatile (VVOC): compounds with a boiling point below 0 °C and (50 °C to 100 °C)
Note 1 to entry In this document: VOC covers all three classes of VOC.
3.3
system
commercial or prototype air cleaner system that includes at least one photocatalytic function with or without a fan
function
4

---------------------- Page: 6 ----------------------
oSIST prEN 16846-1:2015
prEN 16846-1:2015 (E)
3.4
chamber blank
analysis of the composition 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
3.5
test blank
analysis of the composition of the air inside the air tight chamber with an air cleaner system operating inside the
chamber, but with no pollutant by taking sampling on special cartridge for VOC and aldehyde
3.6
cartridge blank
analysis of the sorbent cartridge prior to use for the analysis of reaction by-products
3.7
TWA
time-weighted average, measured or estimated over an 8-hour work schedule
3.8
STEL
ceiling value that should never be exceeded in an occupational environment. Short-term exposure limit (STEL):
these values measured during a maximum period of 15 minutes. TLV (threshold limit value) replaced by STEL
3.9
indoor air
air inside a closed environment
3.10
mineralisation of model VOCs
oxidation of model VOCs to form CO
2
4 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 CO and the appearance of by-
2
products, are measured against time.
5 Apparatus
Standard laboratory apparatus, in addition to the following elements:
5.1 Air tight chamber
Air tight chamber with a volume of at least one m³ fitted with an air homogenising device with a nominal hourly flow
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.
The chamber has sampling ports and throughputs for electrical connections.
The behaviour of the material used to build the chamber in relation to pollutants, UV radiation, sorption and
degassing phenomena shall be known and controlled.
Examples of materials: glass, PMMA, polyethylene, PTFE, stainless steel, etc.
5.2 Analysis apparatus:
All apparatus used for continuous monitoring of the air composition inside the chamber 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 6.1.1, or at
10% of the initial concentration of the relevant pollutants as specified in 6.1.2.
5

---------------------- Page: 7 ----------------------
oSIST prEN 16846-1:2015
prEN 16846-1:2015 (E)
Analyses of reaction by-products are performed according to the methods adapted to the charact
...

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