1、July 2017 English price group 12No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 13.080.20!%guP“2688245www.din.deDIN
2、 EN ISO 11272Soil quality Determination of dry bulk density (ISO 11272:2017);English version EN ISO 11272:2017,English translation of DIN EN ISO 11272:2017-07Bodenbeschaffenheit Bestimmung der Trockenrohdichte (ISO 11272:2017);Englische Fassung EN ISO 11272:2017,Englische bersetzung von DIN EN ISO 1
3、1272:2017-07Qualit du sol Dtermination de la masse volumique apparente sche (ISO 11272:2017);Version anglaise EN ISO 11272:2017,Traduction anglaise de DIN EN ISO 11272:2017-07SupersedesDIN EN ISO 11272:201406www.beuth.deDocument comprises 23 pagesDTranslation by DIN-Sprachendienst.In case of doubt,
4、the German-language original shall be considered authoritative.06.17 DIN EN ISO 11272:2017-07 2 A comma is used as the decimal marker. National foreword This document (EN ISO 11272:2017) has been prepared by Technical Committee ISO/TC 190 “Soil quality” in collaboration with Technical Committee CEN/
5、TC 444 “Test methods for the characterization of solid matrices” (Secretariat: NEN, Netherlands). The responsible German body involved in its preparation was DIN-Normenausschuss Wasserwesen (DIN Standards Committee Water Practice), Working Committee NA 119-01-02-02-09 AK “Physical methods”, Subcommi
6、ttee NA 119-01-02-02 UA “Chemical and physical methods”. WARNING Users of this standard should be familiar with normal laboratory practice. This standard does not purport to address all the safety aspects, if any, associated with its use. It is the responsibility of the employer to establish appropr
7、iate safety and protective practices and to ensure compliance with any national regulatory conditions. The DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO 11508 DIN EN ISO 11508 Amendments This standard differs from DIN EN ISO 11272:2014-06 as
8、 follows: a) terms have been redefined; b) Clause 4.3 “Substitute methods” has been included; c) former Table 1 “Density of water.” under 4.3.2.3 has been deleted; d) Annex B “Density of water at different temperatures” has been included; e) the Bibliography has been extended; f) the standard has be
9、en editorially revised. Previous editions DIN 19683-12: 1973-04 DIN ISO 11272: 2001-01 DIN EN ISO 11272: 2014-06 DIN EN ISO 11272:2017-07 3 National Annex NA (informative) Bibliography DIN EN ISO 11508 ,Soi lquality Determination o fparticle densit yDIN EN ISO 11272:2017-07 4 This page is intentiona
10、lly blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11272 March 2017 ICS 13.080.20 Supersedes EN ISO 11272:2014English Version Soil quality - Determination of dry bulk density(ISO 11272:2017) Qualit du sol - Dtermination de la masse volumique apparente sche (ISO 11272:2017) Bodenbesch
11、affenheit - Bestimmung der Trockenrohdichte (ISO 11272:2017) This European Standard was approved by CEN on 11 February 2017. 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 wi
12、thout 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 othe
13、r 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,
14、Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPE
15、AN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 11272:2017 EEu
16、ropean foreword .3Introduction 51 Scope . 62 Normative references 63 Terms and definitions . 64 Test procedures . 74.1 Core method 74.1.1 Principle 74.1.2 Apparatus . 74.1.3 Sampling and drying . 74.1.4 Calculation . 84.2 Excavation method 84.2.1 Principle 84.2.2 Apparatus . 84.2.3 Field procedure .
17、 94.2.4 Laboratory procedure . 94.2.5 Calculation 104.3 Substitute methods 114.4 Clod method . 124.4.1 Principle . 124.4.2 Apparatus 124.4.3 Procedure 134.4.4 Calculation 134.4.5 Unified reference temperature . 145 Test report 14Annex A (informative) Volume measurement using plastic balls .15Annex B
18、 (normative) Density of water at different temperatures .16Bibliography .19Contents PageDIN EN ISO 11272:2017-07 EN ISO 11272:2017 (E) 2Foreword .4European foreword This document (EN ISO 11272:2017) has been prepared by Technical Committee ISO/TC 190 “Soil quality“ in collaboration with Technical Co
19、mmittee CEN/TC 444 “Test methods for environmental characterization of solid matrices” 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 September 2017, and
20、conflicting national standards shall be withdrawn at the latest by September 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 held responsible for identifying any or all such patent rights. Thi
21、s document supersedes EN ISO 11272:2014. 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 Yu
22、goslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 112
23、72:2017 has been approved by CEN as EN ISO 11272:2017 without any modification. DIN EN ISO 11272:2017-07 EN ISO 11272:2017 (E)3 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internati
24、onal 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 IS
25、O, also take part in the work. ISO collaborates closely 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, Par
26、t 1. In particular the different approval criteria needed 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 th
27、e 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. 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 r
28、eceived (see www .iso .org/ patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessme
29、nt, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared by Technical Committee ISO/TC 190, Soil quality, Subcommittee SC 3, Chemical
30、methods and soil characteristics.This second edition cancels and replaces the first edition (ISO 11272:1998), which has been technically revised.DIN EN ISO 11272:2017-07 EN ISO 11272:2017 (E) 4 IntroductionThe dry bulk density is used together with the particle density (see ISO 11508) for the calcul
31、ation of the solids content and porosity of soil for the evaluation of soil structure and conversion of concentrations of substances in soil from mass/volume to mass/mass and vice versa.DIN EN ISO 11272:2017-07 EN ISO 11272:2017 (E)5 1 ScopeThis document specifies three methods for the determination
32、 of dry bulk density of soils calculated from the mass and the volume of a soil sample. The methods involve drying and weighing a soil sample, the volume of which is either known core method (see 4.1) or determined excavation method (see 4.2) and clod method (see 4.4).2 Normative referencesThe follo
33、wing documents are referred to in the text in such a way that some or all of their content constitutes requirements 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.ASTM D1
34、556, Standard test method for density and unit weight of soil in place by sand-cone methodASTM D2167, Standard test method for density and unit weight of soil in place by the rubber balloon methodASTM D4914, Standard test methods for density of soil and rock in place by the sand replacement method i
35、n a test pitASTM D5030, Standard test methods for density of soil and rock in place by the water replacement method in a test pitDIN 18125-2, Soil investigation and testing Determination of density of soil Part 2: Field tests3 Terms and definitionsFor the purposes of this document, the following ter
36、ms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at h t t p :/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp3.1dry bulk densityratio of the oven
37、-dry mass of the solids to the volume of the soilNote 1 to entry: The bulk volume includes the volume of the solids and of the pore space.Note 2 to entry: The preferred SI unit of measurement is kilograms per cubic metre (kg m-3), but grams per cubic centimetre (g cm-3) is also very common. Note tha
38、t x g cm-3= 1 000 x kg m-3.DIN EN ISO 11272:2017-07 EN ISO 11272:2017 (E) 6 4 Test procedures4.1 Core method4.1.1 PrincipleThis method is applicable to stoneless and slightly stony soils. Core samples of known volume are taken with a metal sampling tool. The sample is dried in an oven and weighed, a
39、nd the dry bulk density is calculated.4.1.2 Apparatus4.1.2.1 Core sample holders, thin-walled metal cylinders with a volume of 100 cm3to 400 cm3, a steel cap for driving into the soil, and a driver.4.1.2.2 Oven, heated and ventilated, capable of maintaining a temperature of (105 2) C.4.1.2.3 Desicca
40、tor, sealed chamber in which the air is kept dry with the aid of silica gel or other desiccant.4.1.2.4 Laboratory balance, capable of weighing to an accuracy of 1/1 000 of the measured value.4.1.3 Sampling and dryingPress or drive a core sample holder (4.1.2.1) of known volume without deflection and
41、 compaction into either a vertical or horizontal soil surface far enough to fill the sampler. Carefully remove the sample holder and its contents to preserve the natural structure, and trim the soil extending beyond each end of the sample holder with a straight-edged knife or sharp spatula. The soil
42、 sample volume is thus equal to the volume of the sample holder. Take at least six core samples from each soil layer. Place the holders containing the samples in an oven (4.1.2.2) at 105 C until constant mass is reached.NOTE 1 In most cases, constant mass is reached after 48 h drying.Remove the samp
43、les from the oven and allow them to cool in the desiccator (4.1.2.3). Weigh the samples on the balance (4.1.2.4) immediately after removal from the desiccator (mt). Control mass is reached when the differences in successive weighings of the cooled sample, at intervals of 4 h, do not exceed 0,01 % of
44、 the original mass of the sample.Swell/shrink soils (especially clays, muds and peats) change their bulk density with changing water content. Such soils should be sampled first in a moist state (i.e. field capacity); in addition, they should be sampled in a wetter state (water saturation) and in a d
45、rier state (i.e. wilting point). If the dry soil is too hard to be sampled, the bulk density of the soil can be determined according to 4.3, and the total soil volume according to 4.2.3.NOTE 2 If bulk density (and water content) is the only parameter of interest, it is not necessary to keep the samp
46、les in their holders when taking them back to the laboratory. After the sample has been obtained and trimmed, the soil can be extracted from the holder, without loss, in order to be stored for transportation either in a metal box or in a heat-resistant plastic bag.It is normally worthwhile to combin
47、e a measurement of the water content with a measurement of the bulk density; in that case it is necessary to transport the samples without allowing loss of water by evaporation, and to begin the laboratory operations by weighing the fresh sample.DIN EN ISO 11272:2017-07 EN ISO 11272:2017 (E)7 4.1.4
48、CalculationThe dry bulk density is calculated using Formula (1) and Formula (2):b,sd=mV(1)mmmdts= (2)whereb,sis the bulk density, dry, in grams per cubic centimetre, g/cm3;mdis the mass of the sample dried at 105 C, in grams, g;V is the volume of the sample holder, in cubic centimetres, cm3;msis the mass of the empty sample holder, in grams, g;mtis the mass of t
