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

(1) This Technical Specification 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 Technical Specification 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 CEN/TS 16637 2 (tank test) and CEN/TS 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 CEN/TS 16637 2 is not appropriate for the testing of these construction products (in this case EN 16105 [5] 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. Das vorliegende 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 diese Technische Spezifikation einen Leitfaden für die Technischen Produktkomitees des CEN und Arbeitsgruppen (WG) der Europäische 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 dieser Technischen Spezifikation nicht berücksichtigt, da die Prüfverfahren in CEN/TS 16637-2 (Trog-Prüfverfahren) und CEN/TS 16637-3 (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 [4]), die zeitweilig mit Wasser in Berührung kommen, könnten physikalische und chemische Eigenschaften sich bei dauerhaftem Kontakt mit Wasser ändern. Diese Produkte werden nicht in dieser Technischen Spezifikation berücksichtigt, da das Prüfverfahren in CEN/TS 16637-2 für die Prüfung dieser Bauprodukte nicht geeignet ist. (In diesem Fall könnte EN 16105 [5] 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

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

(1) Ta tehnična specifikacija omogoča opredelitev ustrezne preskusne metode izluževanja za določanje sproščanja reguliranih nevarnih snovi (RDS) iz gradbenih proizvodov v tla, površinsko vodo in podtalnico. Ta dokument določa korake postopka za določanje ustreznih preskusov sproščanja, vključno z:
a) določanjem preskusne metode na podlagi splošnih lastnosti proizvodov;
b) izbiro preskusne metode z uporabo posebnih lastnosti proizvodov.
(2) Poleg tega ta tehnična specifikacija določa splošna navodila za tehnične odbore za proizvode CEN in delovne skupine EOTA v zvezi z osnovnimi vidiki (vzorčenje, priprava vzorcev in shramba, obdelava izlužkov, analiza izlužkov in dokumentacija), ki se določijo v ustreznih standardih za proizvode ali evropskih tehničnih soglasjih ETA.
(3) Kovinski proizvodi in premazi na kovinskih proizvodih niso obravnavani v shemi določanja te tehnične specifikacije, saj preskusne metode iz specifikacij CEN/TS 16637 2 (preskus s cisterno) in CEN/TS 16637 3 (preskus v stolpcu) niso primerne za preskušanje teh gradbenih proizvodov zaradi drugačnega mehanizma sproščanja (nadzor topljivosti).
OPOMBA: glej dodatek F.
4) Domneva se, da je občasen stik z vodo (npr. izpostavljenost deževnici) preskušen – po dogovoru – kot stalen stik. Pri nekaterih premazih (npr. nekateri ometi z organskimi vezivi v skladu s standardom EN 15824 [4]) v občasnem stiku z vodo se lahko fizikalne in kemijske lastnosti spremenijo ob stalnem stiku z vodo. Ti proizvodi niso obravnavani v shemi določanja te tehnične specifikacije, saj preskusna metoda iz specifikacije CEN/TS 16637 2 ni primerna za preskušanje teh gradbenih proizvodov (v tem primeru je lahko standard EN 16105 [5] alternativna metoda).

General Information

Status
Published
Public Enquiry End Date
04-Apr-2018
Publication Date
30-Jan-2019
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
20-Nov-2018
Due Date
25-Jan-2019
Completion Date
31-Jan-2019

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SLOVENSKI STANDARD
SIST-TS CEN/TS 16637-1:2019
01-marec-2019
1DGRPHãþD
SIST-TS CEN/TS 16637-1:2014
*UDGEHQLSURL]YRGL2FHQMHYDQMHVSURãþDQMDQHYDUQLKVQRYLGHO1DYRGLOR]D
GRORþDQMHSUHVNXVRYL]OXåHYDQMDLQGRGDWQLKNRUDNRYSUHVNXãDQMD
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: CEN/TS 16637-1:2018
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
SIST-TS CEN/TS 16637-1:2019 en,fr,de

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

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SIST-TS CEN/TS 16637-1:2019
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SIST-TS CEN/TS 16637-1:2019
CEN/TS 16637-1
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
October 2018
TECHNISCHE SPEZIFIKATION
ICS 19.040; 13.040.20; 91.100.01
English Version
Construction products - Assessment of release of
dangerous substances - Part 1: Guidance for the
determination of leaching tests and additional testing
steps

Produits de construction - Evaluation de l'émission de Bauprodukte - Bewertung der Freisetzung von

substances dangereuses - Partie 1 : Guide pour la gefährlichen Stoffen - Teil 1: Leitfaden für die

spécification des essais de lixiviation et des étapes Festlegung von Auslaugprüfungen und zusätzlichen

supplémentaires d'essai Prüfschritten

This Technical Specification (CEN/TS) was approved by CEN on 13 May 2018 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to

submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS

available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in

parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

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: Rue de la Science 23, B-1040 Brussels

© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 16637-1:2018 E

worldwide for CEN national Members.
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Contents Page

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

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

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

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

3 Terms and definitions ................................................................................................................................... 6

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

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

4 Symbols and abbreviations ...................................................................................................................... 14

5 Determination of the appropriate release test method ................................................................. 14

5.1 Principles and general review of the test methods ......................................................................... 14

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

method ............................................................................................................................................................. 15

5.3 Determination of the appropriate test method ................................................................................ 17

6 Adoption of modules for the product specific leaching standard .............................................. 18

6.1 Overview of the modules ........................................................................................................................... 18

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 .......................................................................................................................................... 27

7.1 Definition ........................................................................................................................................................ 27

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

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

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

A.1 Release scenarios and test determination .......................................................................................... 29

A.2 Impact assessment and impact evaluation ......................................................................................... 30

A.2.1 Source-pathway-target approach for impact assessment ............................................................. 30

A.2.2 How to use “intended use” and “intended conditions of use” ...................................................... 31

A.2.3 Impact evaluation ........................................................................................................................................ 31

A.3 Responsibilities ............................................................................................................................................ 32

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

B.1 General ............................................................................................................................................................. 33

B.2 Reference tests and indirect test ............................................................................................................ 33

B.3 Leaching tests for products exposed to carbonation and oxidation .......................................... 33

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

C.1 Representativeness ...................................................................................................................................... 35

C.2 Uncertainty ..................................................................................................................................................... 36

C.3 Sampling under various stages of production control .................................................................... 37

C.4 Objective of sampling .................................................................................................................................. 37

C.5 Preparation of a sampling plan ............................................................................................................... 38

C.6 Considerations on sampling strategy .................................................................................................... 40

C.6.1 General ............................................................................................................................................................. 40

C.6.2 Sampling approach ...................................................................................................................................... 40

C.6.3 Population and sub-population ............................................................................................................... 41

C.6.4 Scale ................................................................................................................................................................... 41

C.6.5 Size of increments and samples .............................................................................................................. 45

C.6.6 Sampling of complex, composite and large products ...................................................................... 45

C.6.7 Sampling location and moment ............................................................................................................... 45

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

Annex E (informative) Example of a sampling report .................................................................................. 48

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

Bibliography ................................................................................................................................................................. 50

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European foreword

This document (CEN/TS 16637-1:2018) 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 supersedes CEN/TS 16637-1:2014.

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

European Free Trade Association.

This Technical Specification 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.

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], and CEN/TR 16496 [2]).]

According to the CEN/CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to announce this Technical Specification: 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.
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Introduction

This informative introduction describes the interactions and interrelations between the release tests

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.

CEN/TS 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.

CEN/TS 16637-2 describes a horizontal test to assess surface dependent release from monolithic, plate-

like or sheet-like construction products while CEN/TS 16637-3 describes 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 are supposed to be used as the

reference test for the intended uses and conditions specified in CEN/TS 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.

Technical Product Committees are expected to apply the test standards developed in CEN/TC 351 for

their products in order to test the potential release of RDS to soil, surface water and groundwater.

FprCEN/TS 16637-1 is intended to provide clear procedures to determine which test method is

appropriate for a given product. CEN Technical Product Committees are referred to the informative

Annex A and Annex B of this document and to CEN/TR 16098 [1], for background information 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.

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 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 [3]. 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 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. However, the performance of the

leaching test regarding repeatability and reproducibility is dependent on the tested construction

product and on the testing conditions. When these Technical Specifications of the horizontal leaching

tests are adopted by CEN, the leaching tests referred to in these Technical Specifications will not yet be

fully validated. No data will be available on repeatability and reproducibility for the range of

construction products. For other, sometimes comparable matrices performance data are available from

national as well as EU validation studies.
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CEN/TS 16637-1:2018 (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 Technical Specification 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 CEN/TS 16637-2 (tank test) and

CEN/TS 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 CEN/TS 16637-2 is not appropriate for

the testing of these construction products (in this case EN 16105 [5] 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.

CEN/TS 16637-2:2014, Construction products - Assessment of release of dangerous substances - Part 2:

Horizontal dynamic surface leaching test

CEN/TS 16637-3:2016, Construction products - Assessment of release of dangerous substances - Part 3:

Horizontal up-flow percolation test

EN 16687, Construction products - Assessment of release of dangerous substances - Terminology

3 Terms and definitions

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

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

• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
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CEN/TS 16637-1:2018 (E)
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.
[SOURCE: EN 16687:2015, 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, 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, 3.2.6]
3.1.4
curing time

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

relevant test results
[SOURCE: EN 16687:2015, 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, 2.2.1]
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, 3.1.2]
3.1.7
laboratory sample
sample or sub-sample(s) sent to or received by the laboratory
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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, 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, 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, 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, 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, 3.1.3]
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, 3.1.5]
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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, 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, 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, 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, 3.1.8]
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, 3.2.3]
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SIST-TS CEN/TS 16637-1:2019
CEN/TS 16637-1:2018 (E)
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, 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, 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, 4.2.3]
3.2.2
digestion

mineralization of the organic matter of a sample and dissolution of its mineral part (as completely as

possible) when reacted with a reagent mixture
Note 1 to entry: Usually done with strong, concentrated
...

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