SIST EN 17087:2019

Construction products - Assessment of release of dangerous substances - Preparation of test portions from the laboratory sample for testing of release and analysis of content

This document is applicable for the preparation of representative test portions from the laboratory sample that has been taken as specified in respective product standards and in CEN/TR 16220, prior to testing of release and analysis of content of construction products.
This document is intended to specify the sequence of operations and treatments to be applied to the laboratory sample in order to obtain suitable test portions in compliance with the specific requirements defined in the corresponding test methods and analytical procedures.

Bauprodukte - Bewertung der Freisetzung von gefährlichen Stoffen - Herstellung von Prüfmengen aus Laboratoriumsproben zur Analyse von Eluaten und Aufschlusslösungen

Diese Europäische Norm gilt für die Herstellung von repräsentativen Prüfmengen aus einer Laboratoriums¬probe, die in Übereinstimmung mit den jeweiligen Produktnormen und CEN/TR 16620 entnommen wurde, vor der Prüfung der Freisetzung und Analyse der Bestandteile von Bauprodukten.
Diese Europäische Norm soll die Abfolge der Tätigkeiten und Behandlungen festlegen, welche auf die Labo-ratoriumsprobe angewendet wird, um geeignete Prüfmengen in Übereinstimmung mit den speziellen Anforderungen, welche durch die entsprechenden Prüf  und Analyseverfahren definiert werden, herzustellen.

Produits de construction - Évaluation de l'émission de substances dangereuses - Préparation de prises d'essai à partir de l'échantillon pour laboratoire en vue des essais d'émission et d'analyse du contenu

La présente Norme européenne s'applique à la préparation de prises d'essai représentatives de l'échantillon pour laboratoire qui a été prélevé comme spécifié dans les normes produits respectives et dans le CEN/TR 16620, avant les essais d'émissions et l'analyse du contenu des produits de construction.
La présente Norme européenne a pour objet de spécifier la séquence correcte d'opérations et de traitements à appliquer à l'échantillon pour laboratoire afin d'obtenir des prises d'essai convenables conformément aux exigences spécifiques définies dans les méthodes d'essai et les modes opératoires analytiques correspondants.

Gradbeni proizvodi - Ocenjevanje sproščanja nevarnih snovi - Priprava preskusnih vzorcev iz laboratorijskega vzorca za preskušanje sproščanja nevarnih snovi in njihovo analizo

Ta evropski standard se uporablja pri pripravi reprezentativnih preskusnih vzorcev iz laboratorijskega vzorca, ki je bil vzet, kot je določeno v ustreznih standardih za izdelke in v standardu CEN/TR 16220, pred preskušanjem sproščanja nevarnih snovi in njihovo analizo v gradbenih proizvodih.
Namen tega evropskega standarda je določiti zaporedje postopkov uporabe in obdelave laboratorijskega vzorca z namenom pridobitve ustreznih preskusnih vzorcev v skladu s posebnimi zahtevami, ki so določene v ustreznih preskusnih metodah in analitičnih postopkih.

General Information

• Status: Published
• Public Enquiry End Date: 02-Apr-2017
• Publication Date: 21-Feb-2019
• 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: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 16-Jan-2019
• Due Date: 23-Mar-2019
• Completion Date: 22-Feb-2019
• 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: EN 17087:2019 - Construction products: Assessment of release of dangerous substances - Preparation of test portions from the laboratory sample for testing of release and analysis of content

Overview

EN 17087:2019 (CEN) specifies how to prepare representative test portions from a laboratory sample of construction products for the assessment of release of dangerous substances and for subsequent analysis of content. It defines the required sequence of operations and treatment techniques to convert a laboratory sample (taken according to the relevant product standard or CEN/TR 16220) into test portions that meet the requirements of release test methods and analytical procedures.

This standard is focused on ensuring specimen representativity and minimizing artefacts during sample handling so that release testing and content analysis deliver reliable, comparable results.

Key Topics and Requirements

• Principle and scope - preparation steps to obtain representative test portions for release testing and content analysis.
• Sequence of treatment - specification of the operations to apply (choice and order of treatments).
• Equipment and interferences - recommended tools and identification of common sources of error or contamination.
• Detailed sample-treatment techniques (Annex A, normative) including:
  • Drying methods: air drying, oven drying (notably 40 °C and 105 °C options), freeze-drying, chemical drying - when to use or avoid each method and procedures.
  • Size reduction: cutting, coring, crushing, freeze crushing, milling - guidance for monolithic, sheet-like and granular products.
  • Homogenization: manual and mechanical approaches, special handling for volatile compounds.
  • Sub-sampling: coning and quartering, mechanical division, and specific protocols for volatile and moderately volatile organic compounds.
  • Storage: preserving representative sub-samples prior to testing.
• Reporting requirements - documentation of the sequence, treatments and any deviations.
• Annex B (informative) - relationship between minimum sub-sample mass and particle size; includes an equation for estimating minimum sub-sample amount.

Practical Applications

• Laboratories performing release testing (e.g., leaching, emission tests) and chemical content analysis of construction materials.
• Manufacturers and quality-control teams preparing samples to demonstrate compliance with regulatory limits or harmonized product standards.
• Notified bodies, certification organizations and environmental/health authorities evaluating product safety regarding hazardous substance release.
• Research groups developing or validating analytical methods for construction product assessment.

Who Should Use It

• Test laboratories and sample preparation technicians
• Product standard writers and conformity assessment bodies
• Manufacturers of construction products seeking repeatable, defensible test results

Related Standards

• EN 17087:2019 complements product-specific test standards and references CEN/TR 16220 for sampling. Use in conjunction with relevant release test methods and analytical procedures to ensure compliant sample preparation and reliable measurement of dangerous substance release.

Keywords: EN 17087:2019, construction products, assessment of release of dangerous substances, test portion preparation, laboratory sample, sample treatment techniques, drying, size reduction, homogenization, sub-sampling.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Bauprodukte - Bewertung der Freisetzung von gefährlichen Stoffen - Herstellung von Prüfmengen aus Laboratoriumsproben zur Analyse von Eluaten und AufschlusslösungenProduits de construction - Évaluation de l'émission de substances dangereuses - Préparation de prises d'essai à partir de l'échantillon pour laboratoire en vue des essais d'émission et d'analyse du contenuConstruction products - Assessment of release of dangerous substances - Preparation of test portions from the laboratory sample for testing of release and analysis of content91.100.01Gradbeni materiali na splošnoConstruction materials in general13.020.99Drugi standardi v zvezi z varstvom okoljaOther standards related to environmental protectionICS:Ta slovenski standard je istoveten z:EN 17087:2019SIST EN 17087:2019en,fr,de01-marec-2019SIST EN 17087:2019SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 17087
February
t r s { ICS
{ sä s r rä r s English Version
Construction productsã Assessment of release of dangerous substances æ Preparation of test portions from the laboratory sample for testing of release and analysis of content Produits de construction ã Évaluation de l 5émission de substances dangereuses æ Préparation de prises d 5essai à partir de l 5échantillon pour laboratoire en vue des essais d 5émission et d 5analyse du contenu
Bauprodukteã Bewertung der Freisetzung von gefährlichen Stoffen æ Herstellung von Prüfmengen aus der Laborprobe zur Prüfung der Freisetzung und zur Gehaltsanalyse This European Standard was approved by CEN on
s { November
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
t r s { CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s y r z yã t r s { ESIST EN 17087:2019

European foreword . 6 Introduction . 7 1 Scope . 8 2 Normative references . 8 3 Terms and definitions . 8 4 Principle . 11 5 Equipment . 11 6 Interferences and sources of error . 11 7 Procedure. 12 7.1 Key concepts . 12 7.1.1 General . 12 7.1.2 Specification of analytical requirements . 13 7.1.3 Specification of sequence of operations . 13 7.1.4 Choice of appropriate procedures . 13 7.2 Sequence of treatment techniques . 13 8 Report . 15 Annex A (normative)
Guideline for choosing sample treatment techniques . 16 A.1 General . 16 A.2 Drying . 16 A.2.1 General information . 16 A.2.2 Air drying at room temperature . 16 A.2.2.1 When to use it . 16 A.2.2.2 When not to use it . 17 A.2.2.3 Procedure. 17 A.2.3 Oven drying at 40 °C . 17 A.2.3.1 When to use it . 17 A.2.3.2 When not to use it . 17 A.2.3.3 Procedure. 17 A.2.4 Oven drying at 105 °C . 17 A.2.4.1 When to use it . 17 A.2.4.2 When not to use it . 18 A.2.4.3 Procedure. 18 A.2.5 Freeze-drying . 18 A.2.5.1 When to use it . 18 SIST EN 17087:2019

Relationship between minimum amount of (sub-)sample and particle size . 28 B.1 Equation for the estimation of the minimum amount of (sub-)sample . 28 B.1.1 General . 28 B.1.2 Example: determining the fraction of particles with the property of interest . 28 B.1.3 Example: estimating the minimum amount of sample . 29 SIST EN 17087:2019

Sample treatment equipment . 31 Annex D (informative)
Examples of analytical methods for content and leaching . 32 Annex E (informative)
Examples of preparation of test samples . 34 E.1 Example 1: Dry matter content, leaching and analysis for pH, Cr, Cu, Mo and Zn . 34 E.1.1 General . 34 E.1.2 Choice of methods and specification of amount and characteristics of test portions . 34 E.1.3 Specification of amount and characteristics of the different test samples . 37 E.2 Example 2: Dry matter content, TOC, loss on ignition, Cd, Hg, Pb, PCB, leaching and analysis for pH, conductivity, Cd, Hg, Pb, Cl, sulphate and TOC . 38 E.2.1 General . 38 E.2.2 Choice of methods and specification of amount and characteristics of test portions . 38 E.2.3 Specification of amount and characteristics of the different test samples . 39 E.2.4 Define the sequence of operations . 40 Bibliography . 45
A piece of flooring is delivered to the laboratory (the laboratory sample). For the purpose of digestion a certain amount is size reduced, the result is the test sample. From the size-reduced test sample a test portion is taken to execute the digestion. If the digest is to be analysed afterwards e.g. by ICP-MS, the whole amount of the digest is the test sample, the amount taken for the analytical procedure, the test portion. [SOURCE: EN 16687:2015, 3.2.3] 3.13 test sample sample, prepared from the laboratory sample, from which test portions are removed for testing or analysis [SOURCE: EN 16687:2015, 3.2.2] 3.14 volatile inorganic compounds inorganic compounds that can be lost by heating during sample preparation Note 1 to entry: Examples of volatile inorganic compounds are mercury, arsenic, cadmium and thallium. SIST EN 17087:2019

Annex A contains instructions on when to use a particular operation. To choose the procedures follow the instructions in Annex A. 7.2 Sequence of treatment techniques The flow chart in Figure 1 describes the steps in the procedure for pre-treatment of the laboratory samples. It enables decisions on the specific order of treatment operations for a particular laboratory sample in order to result in representative test portions. Apply Figure 1 on the starting laboratory sample and repeat the procedure on all sample fractions or sub-samples subsequently obtained during the preparation, in an iterative cycle until all analytical requirements are fulfilled. SIST EN 17087:2019

Figure 1 — Sequence of operations SIST EN 17087:2019

Guideline for choosing sample treatment techniques A.1 General The preparation of test samples from a laboratory sample will frequently involve a sequence of operations such as homogenization, drying, particle size reduction and sub-sampling. Specific forms of these operations are described in this annex. Indications on their order are given in Figure 1. The sample treatment techniques prescribed in the analytical standards shall be fulfilled in any case. If volatile compounds are expected in the sample, sub-sampling for the determination of these volatile compounds (A.5.4) should be the first step preferably before any other treatment of the sample. A.2 Drying A.2.1 General information Depending on the nature of the sample and the specific requirements of the test portion, a drying step can be needed during sample treatment for test sample preparation. For the purpose of this European Standard, drying is just used to remove the amount of liquid that could interfere with test sample preparation (e.g. during crushing or milling). For the determination of the liquid content a separate sub-sample can be necessary. For monolithic construction products based on hydraulic binders, drying is not necessary. The determination of the free water content is assessed in a separate sub-sample after size reduction. NOTE Monolithic construction products based on hydraulic binders often hold hydrated phases. Separate drying is not needed as any water added to aid the curing process is used in binding reactions. Drying is very likely to introduce analytical errors for volatile compounds. Therefor avoid drying if it is not strictly required. If a (sub-)sample for volatile compounds determination is to be dried, select the drying technique that minimizes losses of volatile compounds. The test report shall clearly state the technique(s) used for drying, along with the weight of sub-sample(s) before and after each drying step (see Clause 8). It might be that a certain drying technique is not applicable for all requested determinations. In such cases, different sub-samples shall be dried in different ways, choosing the appropriate sequence of techniques for each one. The drying time will depend on the technique chosen, the thickness of the layer of the sample, the nature of the sample, moisture content of the sample and of the air and the rate of ventilation. The “grade of dryness” that shall be reached with the drying step depends on the subsequent treatments to be applied to the sample. Typically, it is not necessary to wait until constant weight: e.g. the sample shall be just dried enough to make crushing, grinding etc. possible. A.2.2 Air drying at room temperature A.2.2.1 When to use it Use air drying at room temperature if one or more of the following apply: — if drying can be reached in appropriate time without alterations of analytes of interest; SIST EN 17087:2019

A reasonable time could be a maximum time of one week. A.2.2.3 Procedure Spread the sample on the trays in a thin layer and allow it to get dry enough. Care shall be taken in order to minimize possible contamination e.g. by dust and exposition to direct sunlight or light sources. The use of a desiccator can accelerate the drying process for small amounts of (sub-)samples. A.2.3 Oven drying at 40 °C A.2.3.1 When to use it Use oven drying at 40 °C if one or more of the following apply: — if loss of volatile compounds of interest does not occur at 40 °C; — if time is critical, and the properties of the sample don’t allow a good drying in a reasonable time at room temperature. A.2.3.2 When not to use it Do not use oven drying at 40 °C if one or more of the following apply: — the properties of the sample don’t allo
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