Soil quality — Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials — Part 3: Extraction of aluminium oxides and hydroxides with ammonium oxalate/oxalic acid

ISO 12782-3:2012 specifies the determination of the content of "reactive" aluminium in the form of amorphous aluminium oxides and hydroxides in soil and other materials by extraction with ammonium oxalate/oxalic acid. Other materials also include waste. The content of "reactive" aluminium can be used as input in geochemical models.

Qualité du sol — Paramètres pour la modélisation géochimique de la lixiviation et de la spéciation des constituants des sols et des matériaux — Partie 3: Extraction des oxydes et hydroxydes d'aluminium à l'acide oxalique et à l'oxalate d'ammonium

L'ISO 12782-3:2012 spécifie la détermination de la teneur en aluminium «réactif» présent sous forme d'oxydes et d'hydroxydes d'aluminium amorphe dans le sol et d'autres matériaux par extraction à l'acide oxalique et à l'oxalate d'ammonium. Les autres matériaux incluent également les déchets. La teneur en aluminium «réactif» peut être utilisée comme une donnée d'entrée dans les modèles géochimiques.

General Information

Status

Published

Publication Date

31-May-2012

ICS

13.080.05 - Examination of soils in general

Technical Committee

ISO/TC 190/SC 7 - Impact assessment

Drafting Committee

ISO/TC 190/SC 7/WG 6 - Transfer and mobility of components

Current Stage

9093 - International Standard confirmed

Completion Date

16-Oct-2023

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ISO 12782-3:2012 - Soil quality -- Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials

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ISO 12782-3:2012 - Qualité du sol -- Parametres pour la modélisation géochimique de la lixiviation et de la spéciation des constituants des sols et des matériaux

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ISO 12782-3:2012 - Qualité du sol -- Parametres pour la modélisation géochimique de la lixiviation et de la spéciation des constituants des sols et des matériaux

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INTERNATIONAL ISO
STANDARD 12782-3
First edition
2012-06-01
Soil quality — Parameters for geochemical
modelling of leaching and speciation of
constituents in soils and materials —
Part 3:
Extraction of aluminium oxides and
hydroxides with ammonium oxalate/
oxalic acid
Qualité du sol — Paramètres pour la modélisation géochimique de la
lixiviation et de la spéciation des constituants des sols et des matériaux —
Partie 3: Extraction des oxydes et hydroxydes d’aluminium à l’acide
oxalique et à l’oxalate d’ammonium
Reference number
ISO 12782-3:2012(E)
©
ISO 2012

---------------------- Page: 1 ----------------------
ISO 12782-3:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2012 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 12782-3:2012(E)
Contents Page
Foreword .iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Reagents . 3
7 Sample pretreatment . 3
7.1 Sample size . 3
7.2 Particle size reduction . 4
7.3 Determination of the water content . 5
8 Procedure . 5
8.1 Preparation of the extraction solution . 5
8.2 Extraction . 5
8.3 Analytical determination . 5
9 Calculation . 5
10 Expression of results . 6
11 Test report . 6
Annex A (informative) Conditions regarding centrifugation . 7
Bibliography .10
© ISO 2012 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO 12782-3:2012(E)
Foreword
ISO (the
...

NORME ISO
INTERNATIONALE 12782-3
Première édition
2012-06-01
Qualité du sol — Paramètres pour
la modélisation géochimique de la
lixiviation et de la spéciation des
constituants des sols et des matériaux —
Partie 3:
Extraction des oxydes et hydroxydes
d’aluminium à l’acide oxalique et à
l’oxalate d’ammonium
Soil quality — Parameters for geochemical modelling of leaching and
speciation of constituents in soils and materials —
Part 3: Extraction of aluminium oxides and hydroxides with ammonium
oxalate/oxalic acid
Numéro de référence
ISO 12782-3:2012(F)
©
ISO 2012

---------------------- Page: 1 ----------------------
ISO 12782-3:2012(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2012
Droits de reproduction réservés. Sauf prescription différente, aucune partie de cette publication ne peut être reproduite ni utilisée sous
quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et les microfilms, sans l’accord écrit
de l’ISO à l’adresse ci-après ou du comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Publié en Suisse
ii © ISO 2012 – Tous droits réservés

---------------------- Page: 2 ----------------------
ISO 12782-3:2012(F)
Sommaire Page
Avant-propos .iv
Introduction . v
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 2
4 Principe . 3
5 Appareillage . 3
6 Réactifs . 3
7 Prétraitement de l’échantillon . 4
7.1 Taille de l’échantillon . 4
7.2 Réduction granulométrique . 4
7.3 Détermination de la teneur en eau . 5
8 Mode opératoire . 5
8.1 Préparation de la solution d’extraction . 5
8.2 Extraction . 5
8.3 Dosage analytique . 6
9 Calcul . 6
10 Expression des résultats . 6
11 Rapport d’essai . 6
Annexe A (informative) Conditions concernant la centrifugation . 7
Bibliographie .10
© ISO 2012 – Tous droits réservés iii

---------------------- Page: 3 ----------------------
ISO 12782-3:2012(F)
Avant-propos
L’ISO
...

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