CEN/TR 17965:2023

SLOVENSKI STANDARD
01-september-2023
Gradbeni proizvodi - Ocenjevanje sproščanja nevarnih snovi - Navodilo za širšo
uporabo referenčne komore CEN/TC 351
Construction products - Assessment of release of dangerous substances - Guidance for
a broader application of the CEN/TC 351 reference room
Bauprodukte - Bewertung der Freisetzung von gefährlichen Stoffen - Leitfaden für eine
weiterführende Anwendung des CEN/TC 351 Referenzraums
Produits de construction - Evaluation de l'émission de substances dangereuses Guide
pour une application à dautres domaines de la chambre de référence du CEN/TC 351
Ta slovenski standard je istoveten z: CEN/TR 17965:2023
ICS:
13.020.99 Drugi standardi v zvezi z Other standards related to
varstvom okolja environmental protection
13.040.20 Kakovost okoljskega zraka Ambient atmospheres
91.100.01 Gradbeni materiali na Construction materials in
splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN/TR 17965
TECHNICAL REPORT
RAPPORT TECHNIQUE
June 2023
TECHNISCHER REPORT
ICS 13.040.20; 91.100.01
English Version
Construction products: Assessment of release of
dangerous substances - Guidance for a broader application
of the CEN/TC 351 reference room
Produits de construction : Évaluation de l'émission de Bauprodukte: Bewertung der Freisetzung von
substances dangereuses - Possibilités d'extension du gefährlichen Stoffen - Leitfaden für eine
champ d'application de la pièce de référence du weiterführende Anwendung des CEN/TC 351
CEN/TC 351 Referenzraums
This Technical Report was approved by CEN on 28 May 2023. It has been drawn up by the Technical Committee CEN/TC 351.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 17965:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Evaluation of VOC emissions from building products: Principles . 5
5 Background history . 9
6 Implementation in national regulations . 10
7 Implementation in voluntary schemes . 11
7.1 General. 11
7.2 German system . 11
7.3 Finnish system . 12
8 Examples of broader application of the reference room . 12
8.1 General. 12
8.2 Using the 30 m reference room for other products . 12
8.2.1 Introduction . 12
8.2.2 Paints . 13
8.2.3 Combustible air fresheners . 13
8.2.4 Furniture . 14
8.3 Other dimensions of the reference room . 15
9 Conclusions . 18
Bibliography . 19
European foreword
This document (CEN/TR 17965:2023) has been prepared by Technical Committee CEN/TC 351
“Construction products: Assessment of release of dangerous substances”, the secretariat of which is held
by NEN.
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.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
CEN/TC 351 prepared the European Standard EN 16516:2017+A1:2020 for the determination of
emissions of volatile compounds from building products into indoor air. EN 16516:2017+A1:2020 also
describes the method for the health-related evaluation of emissions using the concept of the so-called
model room.
This document illustrates the potential use of the model room for the evaluation of emissions from indoor
sources other than building products and/or for their intended use in reference indoor environments
different from the reference room described in EN 16516:2017+A1:2020.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
Introduction
Determination of emissions of dangerous substances from building products into indoor air is carried out
under their intended conditions of use. The intended condition of use of a construction product is
generally specified in the corresponding harmonized product standard. The specific emission rates
determined using EN 16516:2017+A1:2020 are associated with application of the product in a European
Reference Room, under specified climate (temperature, relative humidity) and ventilation conditions.
Converting the test results (Specific Emission Rates: SER) into concentrations in the air of a reference
room is essential because it enables the comparison of those concentrations with reference values and
facilitates the classification of product emissions on the basis of its potential impact on indoor air.
From a technical perspective the SER, as a product characteristic parameter, allows the calculation of the
indoor exposure concentration deriving from any component (construction product, furniture, air
fresheners, etc.) for any room scenario.
The intended conditions of use describe the purpose, place and circumstances of typical applications of a
construction product as defined in a product standard. This includes the intended use (e.g. for what
purpose, how is the product typically installed, etc.) and an emission scenario.
When determining emissions into indoor air, the emission scenario specifies the climate and ventilation
conditions of the air surrounding the product in the reference room. The actual conditions of use in reality
may be different, but it is not possible to evaluate emissions under all possible use scenarios. EN 16516
specifies a set of conditions that are generally agreed to be representative of the use of the product in
“normal” indoor environments, such that all construction products can be evaluated under comparable
conditions.
These defined conditions assume a standardized installation of the product in the reference room with
standardized dimensions, climate and ventilation.
1 Scope
This document describes the concept of a reference room with respect to its application in the health-
related evaluation of dangerous substance emissions from indoor products. The evolution of the
reference room concept with respect to mandatory and voluntary labelling schemes for building products
is outlined. The current limited application to other product types is described as well as the potential for
broader application, either to additional products or for other exposure scenarios that may apply
reference room/s with different characteristics.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 16516:2017+A1:2020, Construction products: Assessment of release of dangerous substances -
Determination of emissions into indoor air
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 16516:2017+A1:2020 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
4 Evaluation of VOC emissions from building products: Principles
The evaluation of volatile organic compounds (VOC) emissions from any indoor source with respect to
their potential effects on health and comfort may be broken down into three main steps (adapted from
JRC, ECA Report 18):
1) Characterization of VOC emissions from indoor sources into indoor air according to a standardized
method,
2) Estimation of the exposure an individual may experience indoors due to emissions from a specific
source (e.g. building products),
3) Evaluation of the effect of indoor exposure on human health.
This simplified risk assessment evaluation scheme is specified for the evaluation of VOC emissions from
building materials using the following tools:
a) Characterization of VOC emissions from building products is performed using
EN 16516:2017+A1:2020 which is based on parts of EN ISO 16000 and former ENV 13419
standards,
b) Estimation of the exposure to VOC emitted by building products is performed using the reference
room concept,
c) Evaluation of the potential health effect of exposure to VOC emitted by building products is
performed using the LCI concept .
NOTE As well as to VOC, EN 16516:2017+A1:2020 can be applied to determine other vapour phase organic
compound emissions (very volatile and semi-volatile organic compounds) and can also be used to determine
ammonia emissions.
EN 16516:2017+A1:2020 details calculation of specific emission rates and expression of results in
a reference room.
Relevant test parameters are the following:
— c , the mass concentration of compound i sampled at the test chamber outlet (µg/m );
i
— S , the emitting surface of the specimen placed in the emission test chamber (m );
t,
— VR , the ventilation rate of the test chamber (m /h);
t
— V , the volume of the test chamber (m ).
t
The following definitions apply.
The air change rate in the test chamber, AC , is calculated according to Formula (1).
t
VR
t
AC = (1)
t
V
t
where
AC is the air change rate of the test chamber, in air changes/h;
t
VR is the ventilation rate of the test chamber, in m /h;
t
V is the volume of the test chamber, in m .
t
, is calculated according to Formula (2).
The loading factor in the test chamber, LAt
S
t
LA=
(2)
t
V
t
where
2 3
LA is the loading factor in the test chamber, in m /m ;
t
S is the emitting surface of the specimen placed in the emission test chamber, in m ;
t
V is the volume of the test chamber, in m .
t
For the characterization of VOC emissions from building products, test results are generally expressed as
area specific emission rates, SER . These are calculated according to Formula (3).
A
Harmonized EU-LCI have been derived (https://ec.europa.eu/growth/sectors/construction/eu-lci/values_en)
c× AC
i t
SER = (3)
A
LA
t
where
SER is the area specific emission rate, in µg/m⋅h;
A
c is the mass concentration of compound i sampled at the test chamber outlet, in
i
µg/m ;
is the air change rate of the test chamber, in air changes/h;
ACt
2 3
LA is the loading factor in the test chamber, in m /m .
t
The ratio AC /LA is called area specific air flow rate, q . Hence SER can also be expressed as Formula (4).
t t A A
SER c×q (4)
AAi
where
SER is the area specific emission rate, in µg/m⋅h;
A
c is the mass concentration of compound i sampled at the test chamber outlet, in
i
µg/m ;
3 2
q is the area specific air flow rate, in m /m⋅h.
A
with
AC
t
q =
A
LA
t
where
AC is th
...