oSIST prEN 16637-1:2021

Construction products - Assessment of release of dangerous substances - Part 1: Guidance for the determination of leaching tests and additional testing steps

(1) This European Standard allows the identification of the appropriate leaching test method for the determination of the release of RDS from construction products into soil, surface water and groundwater. This document provides a stepwise procedure for the determination of appropriate release tests, including:
a) determination of the test method based on general product properties;
b) choice of the test method using specific product properties.
(2) Furthermore, this European Standard gives general guidance for CEN Technical Product Committees and EOTA WGs on basic aspects (sampling, sample preparation and storage, eluate treatment, analysis of eluates and documentation) to be specified in the relevant product standards or ETAs.
(3) Metallic products and coatings on metallic products are not considered in the determination scheme of this Technical Specification since the test methods in EN 16637-2 (tank test) and EN 16637-3 (column test) are not appropriate for the testing of these construction products due to a different release mechanism (solubility control).
NOTE See Annex F.
(4) It is assumed that intermittent contact with water (e. g. exposure to rainwater) is tested — by convention — as permanent contact.
For some coatings, (e. g. some renders with organic binders according to EN 15824 [4]) in intermittent contact to water, physical and chemical properties might be altered in permanent contact with water. These products are not considered in the determination scheme of this Technical Specification since the test method in EN 16637-2 is not appropriate for the testing of these construction products (in this case EN 16105 might be an alternative method).

Bauprodukte - Bewertung der Freisetzung von gefährlichen Stoffen - Teil 1: Leitfaden für die Festlegung von Auslaugprüfungen und zusätzlichen Prüfschritten

(1) Dieses Dokument ermöglicht die Identifizierung des geeigneten Auslaugprüfverfahrens für die Bestimmung der Freisetzung regulierter gefährlicher Stoffe aus Bauprodukten in den Boden, das Oberflächenwasser und das Grundwasser. Dieses Dokument enthält ein schrittweises Verfahren zur Ermittlung geeigneter Freisetzungsprüfungen, einschließlich:
a)   Bestimmung des Prüfverfahrens auf der Grundlage allgemeiner Produkteigenschaften;
b)   Wahl des Prüfverfahrens durch Anwendung spezieller Produkteigenschaften.
(2) Darüber hinaus enthält dieses Dokument einen Leitfaden für die Technischen Produktkomitees des CEN und Arbeitsgruppen (WG) der Europäischen Organisation für Technische Bewertung EOTA zu grundlegenden Aspekten (Probenahme, Probenvorbereitung und -lagerung, Eluatbehandlung, Analyse von Eluaten und Dokumentation), die in den maßgebenden Produktnormen oder Europäischen Technischen Bewertungen (ETA) festzulegen sind.
(3) Metallische Produkte und Beschichtungen auf metallischen Produkten werden in diesem Dokument nicht berücksichtigt, da die Prüfverfahren in prEN 16637 2:—1 (Trog-Prüfverfahren) und prEN 16637 3:—2 (Perkolationsprüfung) für die Prüfung dieser Bauprodukte aufgrund eines anderen Freisetzungsmechanismus (Löslichkeitssteuerung) nicht geeignet sind.
ANMERKUNG   Siehe Anhang F.
(4) Es wird angenommen, dass der zeitweilige Kontakt mit Wasser (z. B. Beanspruchung durch Regenwasser) nach Vereinbarung als dauerhafter Kontakt geprüft wird. Bei einigen Beschichtungen (z. B. einige Putze mit organischen Bindemitteln nach EN 15824 [7]), die zeitweilig mit Wasser in Berührung kommen, könnten physikalische und chemische Eigenschaften sich bei dauerhaftem Kontakt mit Wasser ändern. Diese Produkte werden nicht in diesem Dokument berücksichtigt, da das Prüfverfahren in prEN 16637 2 für die Prüfung dieser Bauprodukte nicht geeignet ist. (In diesem Fall könnte EN 16105 [8] ein geeignetes alternatives Prüfverfahren sein.)

Produits de construction - Evaluation de l'émission de substances dangereuses - Partie 1 : Guide pour la spécification des essais de lixiviation et des étapes supplémentaires d'essai

(1) Le présent document permet l’identification de la méthode d’essai de lixiviation appropriée pour déterminer le relargage de SDR issues de produits de construction dans le sol, les eaux de surface et les eaux souterraines. Le présent document fournit un mode opératoire par étapes pour la détermination des essais de relargage appropriés, comprenant :
a) la détermination de la méthode d’essai basée sur les propriétés générales du produit ;
b) le choix de la méthode d’essai reposant sur des propriétés spécifiques du produit.
(2) En outre, le présent document donne des recommandations générales pour les Comités techniques de produits du CEN et les groupes de travail de l’EOTA sur des aspects de base (échantillonnage, préparation des échantillons et stockage, traitement des éluats, analyse des éluats documentation) à spécifier dans les normes de produits ou évaluations techniques européennes (ETE) correspondantes.
(3) Les produits métalliques et revêtements de produits métalliques ne sont pas pris en compte dans le schéma de détermination du présent document, car les méthodes d’essai du prEN 16637 2:—1) (essai en réacteur) et du prEN 16637 3:—2) (essai en colonne) ne sont pas appropriées pour les essais de ces produits de construction du fait d’un mécanisme de relargage différent (contrôle de la solubilité).
NOTE Voir l’Annexe F.
(4) Il est supposé que le contact intermittent avec l’eau (par exemple, exposition à l’eau de pluie) est considéré, par convention, comme un contact permanent. Pour certains revêtements (tels que certains enduits de maçonnerie organiques conformément à l’EN 15824[7]) en contact intermittent avec l’eau, certaines propriétés physiques et chimiques peuvent être altérées en cas de contact permanent avec l’eau. Ces produits ne sont pas pris en compte dans le schéma de détermination du présent document, car la méthode d’essai dans le prEN 16637 2 n’est pas appropriée pour les essais de ces produits de construction (dans ce cas, l’EN 16105[8] peut être une méthode alternative).

Gradbeni proizvodi - Ocenjevanje sproščanja nevarnih snovi - 1. del: Navodilo za določanje preskusov izluževanja in dodatnih korakov preskušanja

General Information

• Status: Not Published
• Public Enquiry End Date: 01-Apr-2021
• ICS: 13.020.99 - Other standards related to environmental protection
• ICS: 91.100.01 - Construction materials in general
• Technical Committee: NES - Dangerous substances
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 12-Jan-2021
• Due Date: 01-Jun-2021
• Completion Date: 23-Apr-2021
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Mandate: M/366 - Concerning the execution of standardisation work for the development of horizontal standardised assessment methods for harmonized approcaches relating to dangerous substances under the construction products directive (CPD)
• Ref Project: prEN 16637-1 - Construction products: Assessment of release of dangerous substances - Part 1: Guidance for the determination of leaching tests and additional testing steps

Relations

• Revised: SIST-TS CEN/TS 16637-1:2019 - Construction products - Assessment of release of dangerous substances - Part 1: Guidance for the determination of leaching tests and additional testing steps
• Effective Date: 01-Mar-2021
• Revised: SIST-TS CEN/TS 16637-1:2019 - Construction products - Assessment of release of dangerous substances - Part 1: Guidance for the determination of leaching tests and additional testing steps
• Effective Date: 18-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 16637-1:2021
01-marec-2021
Gradbeni proizvodi - Ocenjevanje sproščanja nevarnih snovi - 1. del: Navodilo za
določanje preskusov izluževanja in dodatnih korakov preskušanja
Construction products - Assessment of release of dangerous substances - Part 1:
Guidance for the determination of leaching tests and additional testing steps

Bauprodukte - Bewertung der Freisetzung von gefährlichen Stoffen - Teil 1: Leitfaden für

die Festlegung von Auslaugprüfungen und zusätzlichen Prüfschritten

Produits de construction - Evaluation de l'émission de substances dangereuses - Partie

1 : Guide pour la spécification des essais de lixiviation et des étapes supplémentaires

d'essai
Ta slovenski standard je istoveten z: prEN 16637-1
ICS:
13.020.99 Drugi standardi v zvezi z Other standards related to
varstvom okolja environmental protection
91.100.01 Gradbeni materiali na Construction materials in
splošno general
oSIST prEN 16637-1:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 16637-1:2021
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oSIST prEN 16637-1:2021
DRAFT
EUROPEAN STANDARD
prEN 16637-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2021
ICS 91.100.01 Will supersede CEN/TS 16637-1:2018
English Version
Construction products: Assessment of release of
dangerous substances - Part 1: Guidance for the
determination of leaching tests and additional testing
steps
Bauprodukte - Bewertung der Freisetzung von
gefährlichen Stoffen - Teil 1: Leitfaden für die
Festlegung von Auslaugprüfungen und zusätzlichen
Prüfschritten

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 351.

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, 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, 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: Rue de la Science 23, B-1040 Brussels

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16637-1:2021 E

worldwide for CEN national Members.
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prEN 16637-1:2021 (E)
Contents Page

European foreword ...................................................................................................................................................... 4

Introduction .................................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

3 Terms and definitions ................................................................................................................................... 7

3.1 Sampling and products ................................................................................................................................. 7

3.2 Release and laboratory testing ................................................................................................................ 10

4 Symbols and abbreviations ....................................................................................................................... 15

4.1 Symbols ............................................................................................................................................................ 15

4.2 Abbreviations ................................................................................................................................................. 15

5 Determination of the appropriate release test method.................................................................. 15

5.1 Principles and general review of the test methods .......................................................................... 15

5.2 Product properties and test conditions for the determination of the relevant test

method .............................................................................................................................................................. 16

5.3 Determination of the appropriate test method ................................................................................. 18

6 Adoption of modules for the product specific leaching standard ............................................... 19

6.1 Overview of the modules ............................................................................................................................ 19

6.2 Product sampling and transport to the laboratory .......................................................................... 21

6.2.1 Introduction on sampling .......................................................................................................................... 21

6.2.2 Objective of sampling .................................................................................................................................. 21

6.2.3 Preparation of a sampling plan and sampling strategy .................................................................. 21

6.2.4 Information from the testing laboratory needed to complement the product

sampling plan ................................................................................................................................................. 24

6.2.5 Packaging and transport of laboratory sample ................................................................................. 24

6.2.6 Sample description and marking of laboratory sample and sampling report ....................... 25

6.2.7 Chain of custody report .............................................................................................................................. 25

6.2.8 Dispatch of product samples, time schedule ...................................................................................... 25

6.2.9 Report on sampling ...................................................................................................................................... 26

6.3 Preparation of the laboratory sample ................................................................................................... 26

6.4 Collection of eluates ..................................................................................................................................... 26

6.4.1 Dynamic surface leaching test .................................................................................................................. 26

6.4.2 Up-flow percolation test ............................................................................................................................. 27

7 Indirect methods ........................................................................................................................................... 28

7.1 Definition ......................................................................................................................................................... 28

7.2 Requirements for indirect methods....................................................................................................... 28

7.3 Examples of indirect methods .................................................................................................................. 28

Annex A (informative) Release scenarios and impact assessment ......................................................... 29

Annex B (informative) Different types of leaching tests ............................................................................. 33

Annex C (informative) Key concepts for product sampling ....................................................................... 35

Annex D (informative) Example form of a chain of custody report ........................................................ 47

Annex E (informative) Example form for the sampling report ................................................................ 48

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Annex F (informative) Metallic products ......................................................................................................... 49

Annex G (informative) Guidance on how to identify and handle unexpected test results and

how to recognize heterogeneous products ......................................................................................... 50

Bibliography ................................................................................................................................................................. 53

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oSIST prEN 16637-1:2021
prEN 16637-1:2021 (E)
European foreword

This document (prEN 16637-1:2021) 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.
This document is currently submitted to the CEN Enquiry.
This document will supersede CEN/TS 16637-1:2018.
The main changes compared to the previous edition are as follows:
— Transfer of technical specification into European Standard;

— Addition of guidance on how to identify and handle unexpected test results and how to recognize

heterogeneous products (see Annex G);
— Updating of normative and informative cross-references.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association.

This document deals with the determination and use of test methods for leaching of construction

products taking specific situations into account. It specifies preconditions under which leaching tests

for monolithic products and for granular products need to be selected.

EN 16637, Construction products: Assessment of release of dangerous substances, consists of the

following parts:

— Part 1: Guidance for the determination of leaching tests and additional testing steps,

— Part 2: Horizontal dynamic surface leaching test,
— Part 3: Horizontal up-flow percolation test.

Background information on characterization of leaching behaviour of construction products can be

found in Technical Reports provided by CEN/TC 351 (i.e. CEN/TR 16098 [1], CEN/TR 16496 [2]).

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Introduction

The European Standards prEN 16637-1, prEN 16637-2 and prEN 16637-3 are developed to assess the

release of regulated dangerous substances (RDS) from construction products into soil, surface water

and groundwater in the framework of Mandate M/366. The horizontal test methods developed under

the Mandate M/366 are intended to be used to show compliance with notified regulations. The tests

cover the release of substances from construction products and in particular, those that are regulated in

notified regulations in one or more EU Member States.

prEN 16637-1 specifies how the CEN Technical Product Committees and EOTA experts should

determine the appropriate leaching test for the determination of the release of RDS from a construction

product into soil, surface water and groundwater. prEN 16637-1 gives background information for

CEN Technical Product Committees on the following aspects:

a) description of the intended conditions of use of the construction product (e.g. above ground

exposed to the precipitation, or shielded from direct infiltration, in surface or groundwater) with

respect to the release of RDS into soil, surface water and groundwater;

b) identification of main release mechanisms, and the appropriate leaching test for a given

construction product.

prEN 16637-2 specifies a horizontal test to assess surface dependent release from monolithic, plate-like

or sheet-like construction products (tank test).

prEN 16637-3 specifies a horizontal test to assess release from granular construction products.

The test methods can be used for both steps in the hierarchy (type testing (TT) and factory production

control (FPC)) and form the reference tests for the intended uses and conditions specified in

prEN 16637-1. In this hierarchy of testing conditionally “indirect tests” can be used, but are not

specified.

The release of substances upon contact with water results in a potential risk to the environment during

the intended use of construction products. The intent of these tests is to identify the leaching behaviour

of construction products and thereby allow assessments of the release of RDS from such products to

soil, surface water and groundwater under intended conditions of use in relation to CE marking and

assessment and verification of constancy of performance.

This document does not address impact assessment. However, since the test methods described in the

document may be used in the context of impact assessments and regulation based on impact

assessments, some guidance on this issue is provided in this document, Annex A (informative).

In addition to existing validation results, in 2011 CEN/TC 351 began an extensive research program on

robustness validation of the existing tank leaching and percolation tests. This was carried out by a

consortium of European experts on 20 construction products to unify differences from the protocols of

the different CEN Members and to check the influence of testing conditions on the test result (e.g.

temperature, flow rate, renewal scheme). The results ([3], [4]) of the research program confirmed the

robustness of the horizontal tests known from former works. Conclusions from the program have been

implemented into the Technical Specifications for the test methods. The performance of the leaching

tests regarding repeatability and reproducibility was deduced from a second validation step and

respective data ([5], [6]) are included in prEN 16637-2 and prEN 16637-3.
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oSIST prEN 16637-1:2021
prEN 16637-1:2021 (E)
1 Scope

(1) This document allows the identification of the appropriate leaching test method for the

determination of the release of RDS from construction products into soil, surface water and

groundwater. This document provides a stepwise procedure for the determination of appropriate

release tests, including:
a) determination of the test method based on general product properties;
b) choice of the test method using specific product properties.

(2) Furthermore, this document gives general guidance for CEN Technical Product Committees and

EOTA WGs on basic aspects (sampling, sample preparation and storage, eluate treatment, analysis of

eluates and documentation) to be specified in the relevant product standards or ETAs.

(3) Metallic products and coatings on metallic products are not considered in the determination scheme

1) 2)

of this document since the test methods in prEN 16637-2:— (tank test) and prEN 16637-3:—

(column test) are not appropriate for the testing of these construction products due to a different

release mechanism (solubility control).
NOTE See Annex F.

(4) It is assumed that intermittent contact with water (e.g. exposure to rainwater) is tested – by

convention – as permanent contact. For some coatings, (e.g. some renders with organic binders

according to EN 15824 [7]) in intermittent contact to water, physical and chemical properties might be

altered in permanent contact with water. These products are not considered in the determination

scheme of this document since the test method in prEN 16637-2 is not appropriate for the testing of

these construction products (in this case EN 16105 [8] might be an alternative method).

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.

prEN 16637-2:— , Construction products: Assessment of release of dangerous substances – Part 2:

Horizontal dynamic surface leaching test

prEN 16637-3:— , Construction products: Assessment of release of dangerous substances – Part 3:

Horizontal up-flow percolation test

EN 16687:2015, Construction products: Assessment of release of dangerous substances – Terminology

Under preparation. Stage at the time of publication: prEN 16637-2:2021.
Under preparation. Stage at the time of publication: prEN 16637-3:2021.
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3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 16687 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1 Sampling and products
3.1.1
compacted granular product

granular product with a low permeability, due to very small pores between the particles

Note 1 to entry: Compacted granular products are usually tested by a test method for granular construction

products with low hydraulic conductivity, because the percolation test is not applicable due to the low

permeability of the products (e.g. fine aggregates that do not allow significant percolation of water through the

solid material in a regular percolation test).
[SOURCE: EN 16687:2015 [9], 2.2.2]
3.1.2
composite sample
average sample
aggregated sample

sample that consists of two or more increments, put together in appropriate portions, from which the

mean value of a desired characteristic may be obtained
[SOURCE: EN 16687:2015 [9], 3.1.1]
3.1.3
curing

hardening of freshly prepared mixtures under well-defined conditions (time, temperature, humidity,

etc.) specified in harmonised product standards
[SOURCE: EN 16687:2015 [9], 3.2.6]
3.1.4
curing time

minimal time defined necessary for curing before a release/emission test can be executed to obtain test

results that are relevant to in use conditions
[SOURCE: EN 16687:2015 [9], 3.2.7]
3.1.5
granular product

product composed of solid particles with a particle size smaller than a specified size or grading

Note 1 to entry: Granular products are usually tested by a percolation test.
[SOURCE: EN 16687:2015 [9], 2.2.1]
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3.1.6
increment

individual portion of product collected by a single operation of a sampling device which will not be

tested as a single entity, but will be mixed with other increments in a composite sample

[SOURCE: EN 16687:2015 [9], 3.1.2]
3.1.7
laboratory sample
sample or sub-sample(s) sent to or received by the laboratory

Note 1 to entry: When the laboratory sample is further prepared by subdividing, cutting, sawing, coring, mixing,

drying, grinding, and curing or by combinations of these operations, the result is the test sample. When no

preparation of the laboratory sample is required, the laboratory sample is the test sample. A test portion is

removed from the test sample for the performance of the test/analysis or for the preparation of a test specimen.

Note 2 to entry: The laboratory sample is the final sample from the point of view of sample collection but it is the

initial sample from the point of view of the laboratory.
[SOURCE: EN 16687:2015 [9], 3.2.1]
3.1.8
monolithic granular product

granular product with specific requirements on the grain size distribution to be tested in the dynamic

surface leaching test (DSLT)
[SOURCE: EN 16687:2015 [9], 2.2.3]
3.1.9
monolithic product

product which has certain minimum dimensions and physical and mechanical properties that ensure its

integrity over a certain period of time in the intended conditions of use

Note 1 to entry: Monolithic products are usually tested by a dynamic surface leaching test.

[SOURCE: EN 16687:2015 [9], 2.2.4]
3.1.10
plate-like product

product formed as a semi-rigid or rigid plate, which has certain minimum dimensions and physical and

mechanical properties that ensure its integrity over a certain period of time in the intended conditions

of use

Note 1 to entry: Plate-like products are usually tested by a dynamic surface leaching test.

[SOURCE: EN 16687:2015 [9], 2.2.5]
3.1.11
population
totality of items under consideration
Note 1 to entry: See also the term “sub-population”.
[SOURCE: EN 16687:2015 [9], 3.1.3]
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3.1.12
sample
portion of material selected from a larger quantity of material

Note 1 to entry: The manner of selection of the sample should be described in a sampling plan.

Note 2 to entry: The term “sample” is often accompanied by a prefix (e.g. laboratory sample, test sample)

specifying the type of sample and/or the specific step in the sampling process to which the obtained material

relates.
[SOURCE: EN 16687:2015 [9], 3.1.5]
3.1.13
sampling plan

predetermined procedure for the selection, withdrawal, on-site pre-treatment, preservation and

transportation of samples to be removed from a population
[SOURCE: EN 16687:2015 [9], 3.1.6]
3.1.14
scale

minimum quantity (mass or volume) of the product for which test results are obtained

Note 1 to entry: Information on characteristics of the product, including emission and variations therein, for a

quantity of product smaller than the defined scale, is judged to be unimportant.
[SOURCE: EN 16687:2015 [9], 3.1.7]
3.1.15
sheet-like product

product formed as a flexible or semi-flexible sheet, which has certain minimum dimensions and

physical and mechanical properties that ensure its integrity over a certain period of time in the

intended conditions of use

Note 1 to entry: Sheet-like products are usually tested by the dynamic surface leaching test.

[SOURCE: EN 16687:2015 [9], 2.2.6]
3.1.16
sub-population
defined part of the population that is targeted for the purposes of sampling
Note 1 to entry: See also the term “population”.

EXAMPLE Consider a continuous production process that results in a specific product. The population for

that product is all the individual products produced between the moment the production process started (this

may be years ago) and the moment the production process ends (this may be years ahead). From the perspective

of testing, this definition does not provide a practical concept. Products produced in the past are no longer

available for testing, while products that might be produced in the (far) future are also not available. The term

sub-population provides a workable alternative, as the ‘start’ and ’end’ of the sub-population can be defined in a

practical way. For the same product, already in production for a number of years, the sub-population might be the

production for a year, the production for a month, or another definition that is practical.

[SOURCE: EN 16687:2015 [9], 3.1.8]
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3.1.17
test portion
analytical portion

amount of the test sample taken directly for testing/analysis purposes, usually of known weight or

volume

EXAMPLE A bag of aggregates is delivered to the laboratory (the laboratory sample). For test purposes a

certain amount of the aggregate is dried, the result is the test sample. Afterwards the column for a percolation test

is filled with a test portion of dried aggregate.
[SOURCE: EN 16687:2015 [9], 3.2.3]
3.1.18
test sample

sample, prepared from the laboratory sample from which test portions are removed for testing or for

analysis
[SOURCE: EN 16687:2015 [9], 3.2.2]
3.1.19
test specimen

test portion specially prepared for emission/release/radiation testing in a test facility in order to

simulate the emission/release/radiation behaviour of the product under intended conditions of use

EXAMPLE Cement is used in construction as a constituent of concrete. For testing purposes, a test specimen

of concrete is prepared for the release test, using cement and adding additional constituents (like aggregates) with

a well-known leaching behaviour.
[SOURCE: EN 16687:2015 [9], 3.2.4]
3.2 Release and laboratory testing
3.2.1
test method for granular construction products with low hydraulic conductivity
GLHC

release test method in which a granular construction product with low hydraulic conductivity is

exposed with one defined surface to a leachant renewed at subsequent time intervals

Note 1 to entry: See also the term “tank leaching test”.
[SOURCE: EN 16687:2015 [9], 4.2.3]
3.2.3
dynamic surface leaching test
DSLT

release test method in which a monolithic, sheet-like or plate-like product is immersed in a leachant

renewed at determined time intervals
Note 1 to entry: See also the term ”tank leaching test”.
[SOURCE: EN 16687:2015 [9], 4.2.2]
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prEN 16637-1:2021 (E)
3.2.4
eluate
solution obtained from a leaching test
Note 1 to entry: See also the term ”leachant”.
[SOURCE: EN 16687:2015 [9], 4.2.7]
3.2.7
impact assessment

general term for the entire process of assessing the concentrations of regulated dangerous substances

or parameters, at the point of compliance based on the leaching test results, the source term, (or, where

applicable, the façade emission function) and the modelling of environmental transport taking into

account the intended conditions of use

Note 1 to entry: The final step after the impact assessment is the comparison of the predicted environmental

concentrations with the environmental limit values at the point(s) of compliance, see “impact evaluation”.

Note 2 to entry: Impact assessment is not part of the standardization work in CEN/TC 351. The regulator is

responsible for the definition of relevant intended conditions of use, modelling of the environmental transport, the

point of compliance and the limit values at the point of compliance.
[SOURCE: EN 16687:2015 [9], 4.2.21]
3.2.8
impact evaluation
assessment of emissions/immissions

comparison of (predicted) environmental concentrations of substances/parameters with regulatory

limit values (or other assessment criteria) in soil, surface water or groundwater at a point of

compliance as a result of release from construction products

Note 1 to entry: Such predictions are based on the results of release tests which are translated to intended

conditions of use by modelling the source term and the environmental transport.

Note 2 to entry: The translation of test results to environmental concentrations is not part of standardization

work in CEN/TC 351.
[SOURCE: EN 16687:2015 [9], 4.2.20]
3.2.9
intended use

intended use of the construction product as defined in the applicable harmonised standard or European

assessment document
3.2.10
intended conditions of use

conditions that a product may undergo during service life and that influence its release/emission

behaviour

Note 1 to entry: These conditions are expressed in parameters such as temperature, amount of water during

exposure, wetting/drying; intended conditions of use may vary for instance as a function of time, location,

orientation, geographical location, etc. For simplification, intended conditions of use are transferred into release

scenarios for test purposes.
[SOURCE: EN 16687:2015 [9], 4.1.16]
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3.2.11
leachant

liquid that is brought into contact with the test portion in the leaching procedure

Note 1 to entry: Usually demineralized water is used as leachant for laboratory leaching tests.

[SOURCE: EN 16687:2015 [9], 4.2.6]
3.2.12
leaching behaviour

release and change with time in release from a solid product in contact with a leachant as a function of

major release controlling factors
Note
...