CEN ISO/TS 21268-4:2009

Soil quality - Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil materials - Part 4: Influence of pH on leaching with initial acid/base addition (ISO/TS 21268-4:2007)

ISO/TS 21268-4:2007 specifies a test method to obtain information on the short- and long-term leaching behaviour and characteristic properties of materials. It applies to the determination of the influence of pH on the leachability of inorganic and organic constituents from soil and soil material, and the ecotoxicological effects of eluates with respect to microorganisms, fauna and flora. The test is not suitable for constituents that are volatile under ambient conditions.
The test procedure specified in ISO/TS 21268-4:2007 produces eluates that are subsequently characterized by physical, chemical and ecotoxicological standard methods.

Bodenbeschaffenheit - Eluierungsverfahren für die anschließende chemische und ökotoxikologische Untersuchung von Boden und von Bodenmaterialien - Teil 4: Einfluss des pH–Wertes unter vorheriger Säure/Base-Zugabe (ISO/TS 21268-4:2007)

Dieser Teil von ISO/TS 21268 legt ein Prüfverfahren fest, um Angaben über das kurzfristige und langfristige
Auslaugungsverhalten und zu den charakteristischen Eigenschaften von Materialien zu erhalten.
Er wird angewendet, um den Einfluss des pH-Wertes auf die Auslaugbarkeit anorganischer und organischer
Bestandteile aus Böden und Bodenmaterialien sowie die ökotoxikologischen Auswirkungen von Eluaten auf
Mikroorganismen, Fauna und Flora zu untersuchen. Die Prüfung ist nicht geeignet für Bestandteile, die unter
Umgebungsbedingungen flüchtig sind. Der Gleichgewichtszustand, wie er in diesem Teil von ISO/TS 21268
definiert ist, wird durch Zugabe von vorher bestimmten Mengen an Säure oder Base hergestellt, um die
gewünschten endgültigen pH-Werte zu erreichen.
Durch das in diesem Teil von ISO/TS 21268 festgelegte Prüfverfahren werden Eluate hergestellt, die
anschließend physikalisch, chemisch und ökotoxikologisch nach Standardverfahren charakterisiert werden.
Für die Durchführung ökotoxikologischer Untersuchungen liegt der betreffende pH-Wert-Bereich (siehe 9.2)
üblicherweise zwischen 5 und 9.
ANMERKUNG 1 Zu den flüchtigen organischen Bestandteilen gehören niedermolekulare Komponenten in
Mischungen, wie z. B. Mineralöl.
ANMERKUNG 2 Es ist nicht immer möglich, die Prüfbedingungen gleichzeitig für anorganische und organische
Bestandteile zu optimieren, und die optimalen Prüfbedingungen können sich auch für unterschiedliche Gruppen von
organischen Bestandteilen unterscheiden. Die Prüfanforderungen für organische Bestandteile sind im Allgemeinen
strenger als für anorganische Bestandteile. Die Prüfbedingungen, die für die Messung der Freisetzung von organischen
Bestandteilen geeignet sind, sind im Allgemeinen auch auf anorganische Bestandteile anwendbar.
ANMERKUNG 3 Für ökotoxikologische Untersuchungen sind Eluate erforderlich, die die Freisetzung sowohl von
anorganischen als auch von organischen Schadstoffen widerspiegeln.

Qualité du sol - Modes opératoires de lixiviation en vue d'essais chimiques et écotoxicologiques ultérieurs des sols et matériaux du sol - Partie 4: Essai de dépendance au pH avec ajout initial d'acide/base (ISO/TS 21268-4:2007)

L'ISO/TS 21268-4:2007 spécifie une méthode d'essai pour obtenir des informations sur le comportement à la lixiviation à court terme et à long terme ainsi que sur les propriétés caractéristiques des matériaux. Elle s'applique à la détermination de l'influence du pH sur la lixiviabilité des constituants organiques et inorganiques du sol et des matériaux du sol, ainsi que sur les effets écotoxicologiques des éluats sur les micro-organismes, la faune et la flore. L'essai n'est pas adapté à des espèces qui sont volatiles dans des conditions ambiantes.
Le mode opératoire d'essai spécifié dans l'ISO/TS 21268-4:2007 permet d'obtenir des éluats qui sont ensuite caractérisés par des méthodes physiques, chimiques et écotoxicologiques normalisées.

Kakovost tal - Postopki izluževanja za nadaljnje kemijsko in ekotoksikološko preskušanje tal in talnih (zemeljskih) materialov - 4. del: Vpliv pH na izluževanje z začetnim dodatkom kisline ali baze (ISO/TS 21268-4:2007)

Ta del ISO/TS 21268 opredeljuje preskusno metodo za pridobivanje informacij o kratkoročnem in dolgoročnem odzivu na izluževanje ter značilnih lastnosti materialov. Velja za določitev vpliva pH na sposobnost izluževanja neorganskih in organskih sestavin iz tal in talnih (zemeljskih) materialov ter ekotoksiološke učinke izlužkov v zvezi z mikroorganizmi, favno in floro. Preskus ni primeren za sestavine, ki so hlapne pod okoljskimi pogoji. Pogoj za ravnovesje, opredeljen v tem delu ISO/TS 21268, je vzpostavljen z dodanimi vnaprej določenimi količinami kisline ali baze za doseganje želenih končnih pH vrednosti. Preskusni postopek, opredeljen v tem delu ISO/TS 21268, prinaša izlužke, ki so nadalje določeni s fizičnimi, kemičnimi in z ekotoksiološkimi standardnimi metodami. Za namene ekotoksioloških preskusov bo običajno ustrezni razpon pH (glej točko 9.2) med pH 5 do 9. Ta preskus se ne more uporabljati sam za določevanje celotnega odziva tal na izluževanje. Za tak razširjen cilj je potrebnih več preskusov izluževanja. Ta del ISO/TS 21268 ne naslavlja vprašanj glede zdravja in varnosti. Kot je navedeno v Klavzuli 5, zgolj določa lastnosti izluženega.

General Information

• Status: Withdrawn
• Publication Date: 03-Nov-2009
• Withdrawal Date: 03-Dec-2019
• ICS: 13.080.05 - Examination of soils in general
• Technical Committee: CEN/TC 444 - Environmental characterization
• Drafting Committee: CEN/TC 444/WG 1 - Leaching tests
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 04-Dec-2019
• Ref Project: SIST-TS CEN ISO/TS 21268-4:2010 - Soil quality - Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil materials - Part 4: Influence of pH on leaching with initial acid/base addition (ISO/TS 21268-4:2007)

Relations

• Replaced By: EN ISO 21268-4:2019 - Soil quality - Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil-like materials - Part 4: Influence of pH on leaching with initial acid/base addition (ISO 21268-4:2019)
• Effective Date: 11-Dec-2019

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2010
.DNRYRVWWDO3RVWRSNLL]OXåHYDQMD]DQDGDOMQMHNHPLMVNRLQHNRWRNVLNRORãNR
SUHVNXãDQMHWDOLQWDOQLK]HPHOMVNLKPDWHULDORYGHO9SOLYS+QDL]OXåHYDQMH]
]DþHWQLPGRGDWNRPNLVOLQHDOLED]H,6276
Soil quality - Leaching procedures for subsequent chemical and ecotoxicological testing
of soil and soil materials - Part 4: Influence of pH on leaching with initial acid/base
addition (ISO/TS 21268-4:2007)
Bodenbeschaffenheit - Eluierungsverfahren für die anschließende chemische und
ökotoxikologische Untersuchung von Boden und von Bodenmaterialien - Teil 4: Einfluss
des pH–Wertes unter vorheriger Säure/Base-Zugabe (ISO/TS 21268-4:2007)
Qualité du sol - Modes opératoires de lixiviation en vue d'essais chimiques et
écotoxicologiques ultérieurs des sols et matériaux du sol - Partie 4: Essai de
dépendance au pH avec ajout initial d'acide/base (ISO/TS 21268-4:2007)
Ta slovenski standard je istoveten z: CEN ISO/TS 21268-4:2009
ICS:
13.080.05 Preiskava tal na splošno Examination of soils in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION
CEN ISO/TS 21268-4
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
November 2009
ICS 13.080.05
English Version
Soil quality - Leaching procedures for subsequent chemical and
ecotoxicological testing of soil and soil materials - Part 4:
Influence of pH on leaching with initial acid/base addition
(ISO/TS 21268-4:2007)
Qualité du sol - Modes opératoires de lixiviation en vue Bodenbeschaffenheit - Eluierungsverfahren für die
d'essais chimiques et écotoxicologiques ultérieurs des sols
anschließende chemische und ökotoxikologische
et matériaux du sol - Partie 4: Essai de dépendance au pH Untersuchung von Boden und von Bodenmaterialien - Teil
avec ajout initial d'acide/base (ISO/TS 21268-4:2007) 4: Einfluss des pH-Wertes unter vorheriger Säure/Base-
Zugabe (ISO/TS 21268-4:2007)
This Technical Specification (CEN/TS) was approved by CEN on 8 September 2009 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, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN ISO/TS 21268-4:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
The text of ISO/TS 21268-4:2007 has been prepared by Technical Committee ISO/TC 190 “Soil quality” of the
International Organization for Standardization (ISO) and has been taken over as CEN ISO/TS 21268-4:2009
by Technical Committee CEN/TC 345 “Characterization of soils” 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 [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO/TS 21268-4:2007 has been approved by CEN as a CEN ISO/TS 21268-4:2009 without any
modification.
TECHNICAL ISO/TS
SPECIFICATION 21268-4
First edition
2007-11-15
Soil quality — Leaching procedures
for subsequent chemical
and ecotoxicological testing of soil
and soil materials —
Part 4:
Influence of pH on leaching with initial
acid/base addition
Qualité du sol — Modes opératoires de lixiviation en vue d'essais
chimiques et écotoxicologiques ultérieurs des sols et matériaux du
sol —
Partie 4: Essai de dépendance au pH avec ajout initial d'acide/base

Reference number
ISO/TS 21268-4:2007(E)
©
ISO 2007
ISO/TS 21268-4:2007(E)
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ISO/TS 21268-4:2007(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 2
4 Symbols and abbreviations . 3
5 Principle. 4
6 Apparatus . 4
7 Reagents. 6
8 Sample pretreatment . 6
8.1 Sample size . 6
8.2 Particle size reduction. 6
8.3 Determination of the dry matter content and of water content. 7
8.4 Preparation of test portion. 7
9 Procedure . 7
9.1 Contact time . 7
9.2 pH-range . 8
9.3 Leaching test. 8
9.3.1 General. 8
9.3.2 Preparation of leachant. 8
9.3.3 Leaching procedure. 9
9.4 Natural pH. 11
10 Eluate treatment, storage and analysis. 11
11 Analytical determination . 12
12 Blank test. 12
13 Calculation. 12
14 Test report . 13
15 Performance characteristics . 13
Annex A (informative) Example of a specific liquid-solid separation procedure for soil sample. 14
Annex B (informative) Operation and uses of the test: influence of pH on the leaching behaviour. 15
Annex C (informative) Preliminary determination of the acid/base consumption. 19
Bibliography . 23

ISO/TS 21268-4:2007(E)
Foreword
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ISO/TS 21268-4 was pre
...