1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 10930:2012Soil quality Measurement ofthe stability of soil aggregatessubjected to the action ofwaterBS EN ISO 10930:2013BS EN ISO 10930:2013 BRITISH STANDARDNational forew
2、ordThis British Standard is the UK implementation of EN ISO 10930:2013. It is identical to ISO 10930:2012. It supersedes BS ISO 10930:2012, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee EH/4, Soil quality.A list of organizations represented on this c
3、ommittee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2013. Published by BSI Standards Limited 2013 ISBN 978 0 580 79336 3 ICS
4、13.080.05 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2012.Amendments/corrigenda issued since publicationDate Text affected30 April 2013 This corrigen
5、dum renumbers BS ISO 10930:2012 as BS EN ISO 10930:2013EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORM EN ISO 10930 February 2013 ICS 13.080.05 English Version Soil quality - Measurement of the stability of soil aggregatessubjected to the action of water (ISO 10930:2012) Qualit du sol - Mesure de la
6、 stabilit dagrgats de solssoumis laction de leau (ISO 10930:2012) Bodenbeschaffenheit - Messung der Stabilitt vonBodenaggregaten 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 Regulati
7、ons which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. Th
8、is European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the samestatus as the official versions. CEN membe
9、rs 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,
10、 Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and UnitedKingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any mea
11、ns reservedworldwide for CEN national Members. Ref. No. EN ISO 10930:2013: EBS EN ISO 10930:2013EN ISO 10930:2013 (E)EN ISO 10930:2013 (E) 3 Foreword The text of ISO 10930:2012 has been prepared by Technical Committee ISO/TC 190 “Soil quality” of theInternational Organization for Standardization (IS
12、O) and has been taken over as EN ISO 10930:2013 byTechnical 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 identicaltext or by endorsement, at the latest by
13、 August 2013, and conflicting national standards shall be withdrawn atthe latest by August 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patentrights. CEN and/or CENELEC shall not be held responsible for identifying any or all such paten
14、t rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, CzechRepublic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, Fra
15、nce, 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
16、10930:2013 without any modification. BS ISO 10930:2012ISO 10930:2012(E)ii ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All 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,
17、 including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublishe
18、d in SwitzerlandBS EN ISO 10930:2013ISO 10930:2012(E)BS ISO 10930:2012ISO 10930:2012(E)ii ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,electronic
19、 or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOsmember body in the country of the requester.ISO copyright office Case postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web w
20、ww.iso.orgPublished in SwitzerlandBS ISO 10930:2012ISO 10930:2012(E) ISO 2012 All rights reserved Contents PageForeword 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 35.1 General . 35.2 Field sam
21、pling 35.3 Preparation of the soil sample . 35.4 Treatment methods . 45.5 Measurement of the size distribution of the remaining aggregates 56 Calculation 66.1 General . 66.2 Corrected MWD for soils with gravels . 6 7 Additional treatment for dispersible soils 6 8 Interpretation of the results 6 9 Te
22、st 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 samp
23、le 12 Bibliography .13BS EN ISO 10930:2013ISO 10930:2012(E)BS ISO 10930:2012ISO 10930:2012(E)ForewordISO (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
24、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
25、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
26、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
27、 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 reservedB
28、S EN ISO 10930:2013ISO 10930:2012(E)BS ISO 10930:2012ISO 10930:2012(E)ForewordISO (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 technic
29、al 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 wi
30、th 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 Intern
31、ational 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 b
32、e 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 reservedBS ISO 10930:2012ISO 109
33、30:2012(E)IntroductionThe 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
34、 of their aggregates.The methodology is, to a great extent, based on Hnin and Combeaus structural stability test (1958)1. However, it also includes certain aspects of other methods Yoder (1936)2, Emerson (1954)3, Grieve (1980)4, Kemper and Rosenau (1986)5, Matkin and Smart (1987)6, as well as the re
35、sults from Le Bissonnais (1988)7, Le Bissonnais et al. (1989)8, Le Bissonnais and Le Souder (1995)9, and Le Bissonnais (1996)10.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 st
36、ability, 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 mechani
37、sms 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 di
38、saggregation 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
39、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 vBS EN ISO 10930:2013ISO 10930:2012(E)BS ISO 10930:2012BS EN ISO 10930:2013BS ISO 10930:2012 BS ISO 10930:2012Soil quality Measurement of the
40、stability of soil aggregates subjected to the action of water1 ScopeThis 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, ho
41、wever, 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 grave
42、l 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 cohesi
43、ve to form millimetric aggregates.2 Normative referencesThe 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) ap
44、plies.ISO 3310-1:2000, Test sieves Technical requirements and testing Part 1: Test sieves of metal wire cloth3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1aggregatesemi-permanent structural unit comprising small particles and associated matter
45、 bonded together3.2mean weighted diameterMWDsum 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 100NOTE This diameter is expressed in millimetres.4 Reagent and equipment required for stability t
46、ests4.1 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.INTERNATIONAL STANDARD ISO 10930:2012(E) ISO 2012
47、 All rights reserved 1BS EN ISO 10930:2013BS ISO 10930:2012ISO 10930:2012(E) Rinse and fall: 45 mm vertically.Hnin-Fodoroffs device is recommended for this purpose.Figure 1 shows an example of a sieving device.Key1 50 m sieve2 vessel filled with ethyl alcoholFigure 1 Example of a sieving device4.3 B
48、alance, 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
49、, 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 reservedBS EN ISO 10930:2013ISO 10930:2012(E)BS ISO 10930:2012ISO 10930:2012(E) Rinse and fall:
