1、BS EN ISO 17892-4:2016Geotechnical investigation andtesting Laboratory testing ofsoilPart 4: Determination of particle sizedistribution (ISO 17892-4:2016)BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 17892-4:2016 BRITISH STANDARDNational forewordThis Brit
2、ish Standard is the UK implementation of EN ISO 17892-4:2016. It partially supersedes BS 1377-2:1990, specifically clause 9.The UK participation in its preparation was entrusted to Technical Committee B/526/3, Site investigation and ground testing.A list of organizations represented on this committe
3、e 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 2016. Published by BSI Standards Limited 2016ISBN 978 0 580 85381 4 ICS 13.080.2
4、0; 93.020 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 December 2016.Amendments/corrigenda issued since publicationDate Text affectedEUROPEAN STANDARD NORM
5、E EUROPENNE EUROPISCHE NORM EN ISO 17892-4 November 2016 ICS 13.080.20; 93.020 Supersedes CEN ISO/TS 17892-4:2004English Version Geotechnical investigation and testing - Laboratory testing of soil - Part 4: Determination of particle size distribution (ISO 17892-4:2016) Reconnaissance et essais gotec
6、hniques - Essais de laboratoire sur les sols - Partie 4: Dtermination de la distribution granulomtrie des particules (ISO 17892-4:2016) Geotechnische Erkundung und Untersuchung - Laborversuche an Bodenproben - Teil 4: Bestimmung der Korngrenverteilung (ISO 17892-4:2016) This European Standard was ap
7、proved by CEN on 25 September 2016. 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 nat
8、ional 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 lang
9、uage 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
10、, 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 COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CE
11、N-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 17892-4:2016 EBS EN ISO 17892-4:2016EN ISO 17892-4:2016 (E) 3 European foreword This document (EN ISO 17892-4:2
12、016) has been prepared by Technical Committee ISO/TC 182 “Geotechnics” in collaboration with Technical Committee CEN/TC 341 “Geotechnical Investigation and Testing” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publicati
13、on of an identical text or by endorsement, at the latest by May 2017, and conflicting national standards shall be withdrawn at the latest by May 2017. 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
14、 held responsible for identifying any or all such patent rights. This document supersedes CEN ISO/TS 17892-4:2004. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulga
15、ria, 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, Tur
16、key and the United Kingdom. Endorsement notice The text of ISO 17892-4:2016 has been approved by CEN as EN ISO 17892-4:2016 without any modification. BS EN ISO 17892-4:2016ISO 17892-4:2016(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Apparatus . 24.1 Gen
17、eral . 24.2 Sieving method . 34.3 Hydrometer method . 44.4 Pipette method 44.5 Reagents 65 Test procedure 65.1 Selection of test method 65.2 Sieving method . 75.2.1 General 75.2.2 Specimen preparation . 95.2.3 Test execution 105.3 Hydrometer method 125.3.1 General. 125.3.2 Specimen preparation 145.3
18、.3 Test execution 155.4 Pipette method . 155.4.1 General. 155.4.2 Specimen preparation 165.4.3 Test execution 165.5 Combined tests 166 Test results .186.1 Sieving . 186.1.1 Fraction passing each sieve . 186.2 Hydrometer . 186.2.1 Total dry mass .186.2.2 Fraction passing each sieve . 196.2.3 True hyd
19、rometer reading 196.2.4 Effective depth 196.2.5 Equivalent particle diameter 196.2.6 Modified hydrometer reading . 206.2.7 Fraction smaller than equivalent particle diameter .206.2.8 Correction for material larger than 2 mm 216.3 Pipette 216.3.1 Total dry mass .216.3.2 Fraction passing each sieve .
20、216.3.3 Equivalent particle diameter 216.3.4 Fraction smaller than equivalent particle diameter .226.3.5 Correction for material larger than 2 mm 227 Test report 22Annex A (normative) Calibration, maintenance and checks 24Annex B (informative) Pre-treatment of samples 30Bibliography .31 ISO 2016 All
21、 rights reserved iiiContents PageBS EN ISO 17892-4:2016ISO 17892-4:2016(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 tec
22、hnical 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 closel
23、y with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria nee
24、ded for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
25、rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in
26、this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principle
27、s in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.ISO 17892-4 was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 341, Geotechnical investigation and testing, in collaboration with ISO Technical Committee TC 182, G
28、eotechnics, in accordance with the agreement on technical cooperation between ISO and CEN (Vienna Agreement).This first edition cancels and replaces the first edition (ISO/TS 17892-4:2004), which has been technically revised.It also incorporates the Technical Corrigendum ISO/TS 17892-4:2004/Cor 1:20
29、06.A full list of parts in the ISO 17892 series, published under the general title Geotechnical investigation and testing Laboratory testing of soil, can be found on the ISO website.iv ISO 2016 All rights reservedBS EN ISO 17892-4:2016ISO 17892-4:2016(E)IntroductionThis part of ISO 17892 covers area
30、s in the international field of geotechnical engineering never previously standardized. It is intended that this part of ISO 17892 presents broad good practice throughout the world and significant differences with national documents is not anticipated. It is based on international practice (see Refe
31、rence 2). ISO 2016 All rights reserved vBS EN ISO 17892-4:2016BS EN ISO 17892-4:2016Geotechnical investigation and testing Laboratory testing of soil Part 4: Determination of particle size distribution1 ScopeThis part of ISO 17892 specifies a method of determining the particle size distribution of s
32、oils.This part of ISO 17892 is applicable to the laboratory determination of the particle size distribution of a soil test specimen by sieving, or sedimentation, or a combination of both within the scope of geotechnical investigations.The particle size distribution is one of the most important physi
33、cal characteristics of soil. Classification of soils is mainly based on the particle size distribution. Many geotechnical and geohydrological properties of soil are related to the particle size distribution.The particle size distribution provides a description of soil based on a subdivision in discr
34、ete classes of particle sizes. The size of each class can be determined by sieving and/or sedimentation. Coarse soils are usually tested by sieving, but fine and mixed soils are usually tested by a combination of sieving and sedimentation, depending on the composition of the soil.The sieving method
35、described is applicable to all non-cemented soils with particle sizes less than 125 mm. Two sedimentation methods are described: the hydrometer method and the pipette method.NOTE This part of ISO 17892 fulfils the requirements of the particle size distribution testing in accordance with EN 1997-2.2
36、Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendmen
37、ts) applies.ISO 3310-1, Test sieves Technical requirements and testing Part 1: Test sieves of metal wire clothISO 3310-2, Test sieves Technical requirements and testing Part 2: Test sieves of perforated metal plateISO 4788, Laboratory glassware Graduated measuring cylindersISO 14688-1, Geotechnical
38、investigation and testing Identification and classification of soil Part 1: Identification and descriptionISO 17892-1, Geotechnical investigation and testing Laboratory testing of soil Part 1: Determination of water contentISO 17892-3, Geotechnical investigation and testing Laboratory testing of soi
39、l Part 3: Determination of particle density3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.INTERNATIONAL STANDARD ISO 17892-4:2016(E) ISO 2016 All rights reserved 1BS EN ISO 17892-4:2016ISO 17892-4:2016(E)3.1sievingprocess of separating soil partic
40、les into size classes by the use of test sieves consisting of a wire mesh or slotted metal plate that permits particles smaller than the mesh size to pass through3.2sedimentationprocess of separating soil particles into size classes by the gravitational settling of soil particles in a liquid, where
41、different size classes settle at different rates3.3particle size distributionproportions by mass of the various particle size classes present in a soil3.4dispersionmechanical or chemical treatment of the soil to separate any aggregations into single particles3.5coagulationprocess of aggregation of s
42、oil particles in suspension3.6equivalent particle diameterparticle diameter calculated from sedimentation (3.2) data using Stokes law, assuming spherical particlesNote 1 to entry: Stokes law establishes the relationship between the terminal velocity of a sphere falling through a column of fluid, the
43、 spheres diameter, the density and dynamic viscosity of the fluid and the density of the sphere.4 Apparatus4.1 GeneralSee Annex A for calibration, maintenance and checks on the following apparatus.4.1.1 BalancesThe balance for sieve test and hydrometer test shall have an accuracy of 0,01 g or 0,1 %
44、of the weighed mass, whichever value is greater. The balance for pipette test shall have an accuracy of 0,001 g or 0,1 % of the weighed mass, whichever is greater.4.1.2 Drying ovensThe drying oven should be of the forced-draught type and shall be capable of maintaining a uniform temperature througho
45、ut the drying chamber. Any air circulation shall not be so strong that any transport of particles can take place.4.1.3 Timing devicesThe watch or clock shall be readable to 1 s.4.1.4 Temperature measuring devicesTemperature measuring devices, such as thermometers and thermocouples, shall cover the t
46、emperature range of that part of the test and be readable to 0,1 C.2 ISO 2016 All rights reservedBS EN ISO 17892-4:2016ISO 17892-4:2016(E)4.1.5 DesiccatorA desiccator, if used, shall be of suitable size and contain dry, self-indicating desiccant such as silica gel. It is not required if test specime
47、n containers with close-fitting lids are used.4.1.6 Test specimen containersTest specimen containers shall be made of a material that does not change mass as a result of repeated drying cycles. Glass, porcelain and corrosion-resistant metals have been found to be suitable.Containers shall have a cap
48、acity large enough to hold the mass of sample to be dried without spillage, but should not be so large that the mass of the empty container is significantly in excess of that of the specimen.4.1.7 Sample separation following pre-treatmentIf pre-treatment is required, a centrifuge or vacuum filter an
49、d ancillaries or other apparatus used shall be suitable for separating out the soil particles from the reagent without altering the particle size distribution.4.2 Sieving method4.2.1 Test sievesTest sieves conforming to ISO 3310-1 and ISO 3310-2, together with appropriate receivers, shall be used.The number of sieves used and their aperture sizes shall be sufficient to ensure that any discontinuities in the grading curve are detected.The inclusion of sieves 63 mm, 20 mm, 6,3 mm, 2,0 mm, 0,63 mm, 0,20 mm and 0,063 mm is recom
