Soil quality - Measurement of the stability of soil aggregates subjected to the action of water (ISO 10930:2012)

This International Standard specifies the treatments for the measurement of the stability of soil aggregates. It
can be applied to a wide range of materials originating mainly from the tilled horizons of cultivated soils. It can,
however, also apply to any soil profile horizon, whether it is cultivated or not. Aggregates ranging from 3 mm
to 5 mm are measured.
However, the presence of gravel in the 2 mm to 5 mm fraction can distort the results. If the percentage of gravel
is between 10 % and 40 %, the > 2 mm fraction of the gravel obtained from the tests should be washed and
a mean weighted diameter (MWD, see 6.1) calculated with and without gravel. If the percentage of gravel is
> 40 %, the structural stability tests are not significant. The method does not apply to unstructured materials,
as they are not sufficiently cohesive to form millimetric aggregates.

Bodenbeschaffenheit - Messung der Stabilität von Bodenaggregaten gegen Wasserbewegung (ISO 10930:2012)

Diese Internationale Norm legt die Vorbehandlungen zur Messung der Gefügestabilität von Bodenaggregaten fest. Sie kann auf ein breites Spektrum von Materialien angewendet werden, die im Wesentlichen aus dem bearbeiteten Horizont von Kulturböden stammen. Sie kann darüber hinaus auf jeden Bodenhorizont angewendet werden, unabhängig davon, ob er bearbeitet wird oder nicht. Durch die Messung werden Aggregate von 3 mm bis 5 mm erfasst.
Die Anwesenheit von Kies der Fraktion 2 mm bis 5 mm kann die Ergebnisse verfälschen. Beträgt der Anteil an Kies zwischen 10 % und 40 %, sollte die Kiesfraktion > 2 mm gewaschen werden und ein mittlerer gewichteter Durchmesser (MWD, siehe 6.1), jeweils mit und ohne Kiesanteil, berechnet werden. Beträgt der Kiesanteil mehr als 40 %, sind die Gefügestabilitätstests nicht signifikant. Das Verfahren kann nicht für unstrukturierte Materialien angewendet werden, da sie nicht ausreichend bindig sind, um millimetergroße Aggregate zu bilden.

Qualité du sol - Mesure de la stabilité d'agrégats de sols soumis à l'action de l'eau (ISO 10930:2012)

La présente Norme internationale spécifie les traitements permettant le mesurage de la stabilité d'agrégats
du sol. Elle peut être appliquée à une large gamme de matériaux issus essentiellement des horizons travaillés
des sols cultivés. Elle peut cependant s'appliquer également à n'importe quel horizon du profil de sol, qu'il soit
cultivé ou non. La mesure porte sur des agrégats de 3 mm à 5 mm.
Toutefois, la présence de gravier dans la fraction de 2 mm à 5 mm peut fausser les résultats. Si le pourcentage
de gravier est compris entre 10 % et 40 %, il convient de laver la fraction de gravier supérieur à 2 mm obtenue
à partir des essais et de calculer un diamètre moyen pondéré (MWD, voir 6.1) avec et sans gravier. Si le
pourcentage de gravier est supérieur à 40 %, la stabilité structurale n'est pas significative. La méthode ne
s'applique pas aux matériaux non structurés, ceux-ci ne présentant pas de cohésion suffisante pour former
des agrégats millimétriques.

Kakovost tal - Merjenje obstojnosti talnih agregatov v vodi (ISO 10930:2012)

Ta mednarodni standard določa postopek za merjenje obstojnosti talnih agregatov. Uporablja se lahko za raznolike materiale, ki izvirajo predvsem iz zrahljane plasti obdelanih tal. Vendar se lahko uporablja za katero koli obdelano ali neobdelano plast profila tal. Merijo se agregati v velikosti od 3 mm do 5 mm. Vendar lahko prisotnost gramoza v deležu 2 mm do 5 mm popači rezultate. Če odstotek gramoza znaša od 10 % do 40 %, je treba delež gramoza > 2 mm, pridobljenega s preskusi, izprati in izračunati povprečni ponderirani premer (MWD, glej točko 6.1) z gramozom in brez njega. Če znaša odstotek gramoza > 40 %, preskusi strukturne obstojnosti niso bistveni. Metoda se ne uporablja za nestrukturirane materiale, ker niso dovolj kohezivni, da bi tvorili milimetrske agregate.

General Information

Status
Published
Publication Date
19-Feb-2013
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
20-Feb-2013
Completion Date
20-Feb-2013

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SLOVENSKI STANDARD
SIST EN ISO 10930:2013
01-maj-2013
Kakovost tal - Merjenje obstojnosti talnih agregatov v vodi (ISO 10930:2012)

Soil quality - Measurement of the stability of soil aggregates subjected to the action of

water (ISO 10930:2012)
Bodenbeschaffenheit - Messung der Stabilität von Bodenaggregaten gegen
Wasserbewegung (ISO 10930:2012)

Qualité du sol - Mesure de la stabilité d'agrégats de sols soumis à l'action de l'eau (ISO

10930:2012)
Ta slovenski standard je istoveten z: EN ISO 10930:2013
ICS:
13.080.05 Preiskava tal na splošno Examination of soils in
general
SIST EN ISO 10930:2013 en,fr,de

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

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SIST EN ISO 10930:2013
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SIST EN ISO 10930:2013
EUROPEAN STANDARD
EN ISO 10930
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2013
ICS 13.080.05
English Version
Soil quality - Measurement of the stability of soil aggregates
subjected to the action of water (ISO 10930:2012)

Qualité du sol - Mesure de la stabilité d'agrégats de sols Bodenbeschaffenheit - Messung der Stabilität von

soumis à l'action de l'eau (ISO 10930:2012) Bodenaggregaten gegen Wasserbewegung (ISO

10930:2012)
This European Standard was approved by CEN on 5 February 2013.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European

Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national

standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same

status as the official versions.

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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United

Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10930:2013: E

worldwide for CEN national Members.
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SIST EN ISO 10930:2013
EN ISO 10930:2013 (E)
Contents Page

Foreword ....................................................................................................................................................... 3

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SIST EN ISO 10930:2013
EN ISO 10930:2013 (E)
Foreword

The text of ISO 10930:2012 has been prepared by Technical Committee ISO/TC 190 “Soil quality” of the

International Organization for Standardization (ISO) and has been taken over as EN ISO 10930:2013 by

Technical Committee CEN/TC 345 “Characterization of soils” the secretariat of which is held by NEN.

This European Standard shall be given the status of a national standard, either by publication of an identical

text or by endorsement, at the latest by August 2013, and conflicting national standards shall be withdrawn at

the latest by August 2013.

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 implement this European Standard: 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

Endorsement notice

The text of ISO 10930:2012 has been approved by CEN as EN ISO 10930:2013 without any modification.

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SIST EN ISO 10930:2013
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SIST EN ISO 10930:2013
INTERNATIONAL ISO
STANDARD 10930
First edition
2012-05-01
Soil quality — Measurement of the
stability of soil aggregates subjected to
the action of water
Qualité du sol — Mesure de la stabilité d’agrégats de sols soumis à
l’action de l’eau
Reference number
ISO 10930:2012(E)
ISO 2012
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SIST EN ISO 10930:2013
ISO 10930:2012(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
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SIST EN ISO 10930:2013
ISO 10930:2012(E)
Contents Page

Foreword ............................................................................................................................................................................iv

Introduction ........................................................................................................................................................................ v

1 Scope ...................................................................................................................................................................... 1

2 Normative references ......................................................................................................................................... 1

3 Terms and definitions ......................................................................................................................................... 1

4 Reagent and equipment required for stability tests .................................................................................. 1

5 Procedures ............................................................................................................................................................ 3

5.1 General ................................................................................................................................................................... 3

5.2 Field sampling ...................................................................................................................................................... 3

5.3 Preparation of the soil sample ......................................................................................................................... 3

5.4 Treatment methods ............................................................................................................................................. 4

5.5 Measurement of the size distribution of the remaining aggregates ...................................................... 5

6 Calculation ............................................................................................................................................................ 6

6.1 General ................................................................................................................................................................... 6

6.2 Corrected MWD for soils with gravels ........................................................................................................... 6

7 Additional treatment for dispersible soils .................................................................................................... 6

8 Interpretation of the results .............................................................................................................................. 6

9 Test report ............................................................................................................................................................. 8

Annex A (informative) Flow diagram of the measurement of aggregate stability ............................................. 9

Annex B (informative) Examples of the presentation of the test results on the same sample ...................10

Annex C (informative) Sensitivity and repeatability test of the method for seven operators

on a reference sample ......................................................................................................................................12

Bibliography .....................................................................................................................................................................13

© ISO 2012 – All rights reserved iii
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SIST EN ISO 10930:2013
ISO 10930:2012(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies

(ISO member bodies). The work of preparing International Standards is normally carried out through ISO

technical committees. Each member body interested in a subject for which a technical committee has been

established has the right to be represented on that committee. International organizations, governmental and

non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International

Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 10930 was prepared by Technical Committee ISO/TC 190, Soil quality, Subcommittee SC 3, Chemical

methods and soil characteristics.
iv © ISO 2012 – All rights reserved
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SIST EN ISO 10930:2013
ISO 10930:2012(E)
Introduction

The purpose of the method specified in this International Standard is to provide a realistic analysis of the

structural stability of soil aggregates when subjected to the action of weather, cultivation, etc. and to enable the

soils to be classified on the basis of the stability of their aggregates.
[1]

The methodology is, to a great extent, based on Hénin and Combeau’s structural stability test (1958) . However,

[2] [3] [4]

it also includes certain aspects of other methods [Yoder (1936) , Emerson (1954) , Grieve (1980) , Kemper

[5] [6] [7]

and Rosenau (1986) , Matkin and Smart (1987) ], as well as the results from Le Bissonnais (1988) , Le

[8] [9] [10]

Bissonnais et al. (1989) , Le Bissonnais and Le Souder (1995) , and Le Bissonnais (1996) .

The aim of the set of three treatments specified in this International Standard is to provide a means of predicting

the behaviour of soil, with respect to its structural stability, for different conditions of soil wetting by water, which

simulate different climatic, hydraulic and mechanical conditions that might be encountered in the field. It is

therefore recommended that the three treatments be used in order to provide scientific information on the

different mechanisms which can destroy soil aggregates. However, the use of the fast wetting test only, which

is less time-consuming, can prove sufficient for a simple sample comparison.
The treatments were chosen for the following purposes:
— to distinguish between the various mechanisms;

— to distinguish between the disaggregation phase and the measurement of the result of the disaggregation;

— to express the results in a form that can be easily interpreted by comparison with physical soil behaviour in situ.

Following the method proposed in Reference [1], this method recommends the use of ethyl alcohol to ensure

that disaggregation is well controlled on the one hand and, on the other hand, to limit the reaggregation of the

particles on drying.
© ISO 2012 – All rights reserved v
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SIST EN ISO 10930:2013
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SIST EN ISO 10930:2013
INTERNATIONAL STANDARD ISO 10930:2012(E)
Soil quality — Measurement of the stability of soil aggregates
subjected to the action of water
1 Scope

This International Standard specifies the treatments for the measurement of the stability of soil aggregates. It

can be applied to a wide range of materials originating mainly from the tilled horizons of cultivated soils. It can,

however, also apply to any soil profile horizon, whether it is cultivated or not. Aggregates ranging from 3 mm

to 5 mm are measured.

However, the presence of gravel in the 2 mm to 5 mm fraction can distort the results. If the percentage of gravel

is between 10 % and 40 %, the > 2 mm fraction of the gravel obtained from the tests should be washed and

a mean weighted diameter (MWD, see 6.1) calculated with and without gravel. If the percentage of gravel is

> 40 %, the structural stability tests are not significant. The method does not apply to unstructured materials,

as they are not sufficiently cohesive to form millimetric aggregates.
2 Normative references

The following referenced documents are indispensable for the application 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.

ISO 3310-1:2000, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
aggregate

semi-permanent structural unit comprising small particles and associated matter bonded together

3.2
mean weighted diameter
MWD

sum of the product of the mean diameter multiplied by the percentage by mass of the particles in each of the

seven size classes (according to 6.1) divided by 100
NOTE This diameter is expressed in millimetres.
4 Reagent and equipment required for stability tests
4.1 Ethyl alcohol [95 % (V/V) ethanol].
4.2 Sieving device producing a helical movement.
— Diameter of the vessel: 200 mm.
— Height of the vessel: 90 mm.
— Diameter of the sieve: 100 mm.
— Rotation about the centre line: horizontal rotation angle = 0° to 180°.
© ISO 2012 – All rights reserved 1
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SIST EN ISO 10930:2013
ISO 10930:2012(E)
— Rinse and fall: 45 mm vertically.
Hénin-Féodoroff’s device is recommended for this purpose.
Figure 1 shows an example of a sieving device.
Key
1 50 µm sieve
2 vessel filled with ethyl alcohol
Figure 1 — Example of a sieving device
4.3 Balance, with an accuracy of 1 mg.
4.4 Oven.
4.5 Beakers, nominal volume 250 ml.
4.6 Erlenmeyer flasks with stoppers, nominal volume 250 ml.
4.7 Evaporation dishes, nominal volume 60 ml.

4.8 Sieves, stainless steel, square mesh, 100 mm in diameter, 45 mm high, sizes (mm): 5,0, 3,0, 2,0, 1,0,

0,5, 0,2, 0,1, 0,05, respectively, in accordance with ISO 3310-1.
NOTE A 3,15 mm sieve can be used instead of a 3,0 mm sieve.

4.9 Sieve, stainless steel, 0,05 mm square mesh, 100 mm in diameter, 60 mm high, in accordance with ISO 3310-1.

4.10 Plastic angled-spout wash bottles, nominal volume 500 ml.

4.11 Vessel, with a capacity of approximately 3 l, used for sieving in ethyl alcohol.

2 © ISO 2012 – All rights reserved
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SIST EN ISO 10930:2013
ISO 10930:2012(E)

4.12 Flat vessel, approximately 8 cm high with a capacity of approximately 8 l, which is able to contain the

permeable plastic block (4.14).

4.13 Pipette, nominal volume 50 ml, and inherent soft plastic-like rubber pear-shaped bulb.

4.14 Permeable plastic block, 30 mm thick, sufficient in area and shape to almost cover the bottom of the flat

vessel (4.12) (e.g. synthetic foam, 30 kg/m ).

NOTE If no suitable plastic block is available, a 30-mm-thick bed of fine or medium sand may be used.

4.15 Filter papers, with a retention capacity of 2 µm.
4.16 Rigid plastic or metal containers, for the field samples.
4.17 Sampling tools: shovel or spade.
5 Procedures
5.1 General
The sequence of operations is illustrated in Annex A.
5.2 Field sampling
Take a sample of approximately 1 kg of soi
...

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