CEN/TR 16192:2020

SLOVENSKI STANDARD
01-junij-2020
Nadomešča:
SIST EN 16192:2012
Odpadki - Navodilo za analizo izlužkov
Waste - Guidance on analysis of eluates
Abfällen - Anleitung zur analyse von Eluaten
Déchets - Lignes directices pour analyse des éluats
Ta slovenski standard je istoveten z: CEN/TR 16192:2020
ICS:
13.030.20 Tekoči odpadki. Blato Liquid wastes. Sludge
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN/TR 16192
TECHNICAL REPORT
RAPPORT TECHNIQUE
March 2020
TECHNISCHER BERICHT
ICS 13.030.99 Supersedes EN 16192:2011
English Version
Waste - Guidance on analysis of eluates
Déchets - Lignes directices pour analyse des éluats Abfällen - Anleitung zur analyse von Eluaten

This Technical Report was approved by CEN on 2 March 2020. It has been drawn up by the Technical Committee CEN/TC 444.

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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 16192:2020 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 Sample pretreatment . 6
5 Blank determination . 6
6 Interference . 6
7 Selection of the suitable test method . 7
8 Expression of results . 10
9 Test report . 11
Annex A (informative) Validation of EN 12506:2003 and EN 13370:2003 . 12
A.1 General . 12
A.2 Interlaboratory study . 12
A.3 Selection of laboratories . 12
A.4 Selection of samples . 12
A.5 Validation scope . 13
A.6 Results and statistics . 15
A.7 Conclusion. 24
Annex B (informative) Additional validation data . 25
B.1 Round robin test for the determination of Ba, Cd, Cr, Mo, Sb and Se in eluates . 25
B.1.1 General . 25
B.1.2 Round robin samples . 25
B.1.3 Results of the round robin test . 25
B.1.4 Conclusion from the round robin test . 30
B.2 Round robin tests in the framework of acceptability of waste at landfills . 30
Bibliography . 34

European foreword
This document (CEN/TR 16192:2020) has been prepared by Technical Committee CEN/TC 444 “Test
methods for environmental characterization of solid matrices”, 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 EN 16192:2011.
The changes between this document and the previous edition involve updating the relevant EN and ISO
standards or removing them if withdrawn, and adding new relevant standards. Furthermore, the
document has changed from a normative standard into an informative report.
Introduction
This document is intended to be used for the characterization of waste as defined in the Council
Directive 75/442/EEC on waste, as amended by Council Directive 91/156/EEC of 18th March 1991, and
national regulations, whose final destination for disposal is landfill. In the Council Decision of 19
December 2002 establishing criteria and procedures for the acceptance of waste at landfills pursuant to
Article 16 of and Annex II to Directive 1999/31/EC, the test methods are described for determining the
acceptability of waste at landfills. In section 3 of the Annex of this Decision, the European standards
EN 12506 and EN 13370 are included which are replaced by this document.
This document deals with the determination of chemical constituents, electrical conductivity, pH and
total dissolved solids (TDS) in eluates which have been obtained by leaching of waste samples, for
example using EN 12457-1 to EN 12457-4: “Characterization of waste - Leaching - Compliance test for
leaching of granular waste materials and sludges”. In principle, it can be used for the analysis of every
kind of eluate as long as the performance characteristics of the applied analytical method fulfil the
specific requirements.
1 Scope
This document summarizes methods for the determination of the parameters pH, ammonium, AOX, As,
- -
Ba, Cd, Cl , easily liberatable cyanide, Co, Cr, Cr(VI), Cu, DOC/TOC, electrical conductivity, F , Hg, Mo, Ni,
- 2-
NO , Pb, phenol index, total S, Sb, Se, SO , TDS, V and Zn in aqueous eluates for the characterization
2 4
of waste.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions 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 https://www.iso.org/obp/ui
3.1
eluate
solution obtained by a defined leaching test
3.2
laboratory sample
sample or subsample(s) sent to or received by a laboratory
3.3
leachant
aqueous solution used in a leaching test
3.4
leaching test
laboratory test for the determination of the release of matter from a waste into water or an aqueous
solution
3.5
sample
portion of material selected from a larger quantity of material
3.6
test portion
analytical portion
quantity of material of proper size for measurement of the concentration or other properties of interest,
removed from the test sample
Note 1 to entry: The test portion can be taken from the laboratory sample directly if no preparation of sample is
required (e.g. with liquids), but usually it is taken from the prepared test sample.
Note 2 to entry: A unit or increment of suitable homogeneity, size and fineness, needing no further preparation,
can be a test portion.
3.7
test sample
analytical sample
sample, prepared from the laboratory sample, from which test portions are removed for testing or
analysis
4 Sample pretreatment
The eluate should be analysed for the total content of its constituents. If precipitation occurs between
the preparation of the eluate and the analysis it is necessary to ensure by appropriate methods (e.g. re-
dissolution, separate analysis of solution and precipitate) that the total content of the parameters of
interest is determined. If the eluate results from a procedure including a 0,45 µm membrane filtration
process, then the analytical results refer to the content dissolved by the leaching process.
Eluates are susceptible to change to different extents as a result of physical, chemical or biological
reactions which could take place between the time of leaching and the analysis. pH should be
determined immediately after preparation of the eluates and prior to sample pretreatment and this
should be recorded.
It is therefore recommended to take the necessary precautions to minimize these reactions and in the
case of many parameters to analyse the eluate sample with a minimum of delay. The recommended
maximum delay is given in EN ISO 5667-3 or in the respective analytical standards.
Precautions should be taken before and during transport as well as during the time in which the
samples are preserved in the laboratory before being analysed, to avoid alteration of the test portion.
The eluate should be split in an adequate number of test portions for different chemical analyses and
they should be preserved according to the requirements in the analytical standards or EN ISO 5667-3.
One specific test portion may be an untreated aliquot of the laboratory sample for the analysis of
substances such as chloride, fluoride, sulfate, nitrite and chromium(VI) as well as for the determination
of electrical conductivity.
For trace metal analysis test portions usually need to be acidified to pH ≤ 2 with nitric acid.
For safety reasons, it is recommended to acidify the test portion under an extraction hood or in a fume
cupboard as volatile toxic substances could be generated.
NOTE In cases where high contents of soluble solids are leached, acidification of the eluates can lead to
precipitation of salts. This can be avoided by using a suitable dilution prior to acidification.
5 Blank determination
The blank contribution of the applied analytical procedures should be determined as described in the
analytical standards and allowed for in the calculation of the results when appropriate.
6 Interference
A large number of compounds can interfere with the determination of the parameters concerned. These
potential interferences are listed in the individual standards in question.
Several types of interference effects can contribute to inaccuracies in the determination of the various
parameters, especially at low concentrations. These potential interference effects are listed in the
individual standards and should be considered separately for each analytical technique.
Chemical interferences are characterized by molecular compound formation, ionization effects, solute
vaporization, precipitation and effects of degradation of organic matter. Addition of a pH buffer and/or
other preservation methods could reduce these effects.
Physical interferences can be caused by changes of viscosity and surface tension. They can cause
significant inaccuracies especially in eluate samples containing high concentrations of acids and/or
dissolved components. The colour or turbidity of eluates can cause interference in spectrophotometric
determination.
7 Selection of the suitable test method
The appropriate standardized test method listed in Table 1 can be selected according to the type of
waste eluate, the concentration range of the parameter of interest and the expected interferences.
For analytical quality control purposes ISO/TS 13530 and EN ISO/IEC 17025 should be considered.
It is pointed out that the standardized test methods listed in Table 1 have primarily been developed for
the analysis of water samples. Most of them were validated in an interlaboratory trial for a limited
number of waste eluate matrices (see Annex A). Their suitability for other waste eluates should be
checked in the laboratory performing the analysis. Additional validation data obtained in the evaluation
of the analytical performance of laboratories are given in Annex B.
Those standards cited in Table 1 that have not been validated in the CEN/TC 292 inte
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