SIST EN ISO 11508:2018

Soil quality - Determination of particle density (ISO 11508:2017)

ISO 11508:2017 specifies two methods for the determination of particle density of soils calculated from the mass and the volume of soil particles.
The first method (4.1) is applicable to fine soil (<2 mm diameter) and the second method (4.2) is applicable to both porous and nonporous gravel and stones (>2 mm diameter).
The particle density can be used for the calculation of the proportion of solids and of the porosity of soil layers in combination with the procedure given in ISO 11272.

Bodenbeschaffenheit - Bestimmung der Kornrohdichte (ISO 11508:2017)

Diese Internationale Norm legt zwei Verfahren zur Bestimmung der Kornrohdichte von Böden mittels Berechnung aus der Masse und dem Volumen von Bodenpartikeln, fest.
Das erste Verfahren (4.1) ist anwendbar auf Feinboden (< 2 mm Durchmesser), und das zweite Verfahren (4.2) ist anwendbar auf Böden, mit porösen und nichtporösen Kies- und Steinanteil (> 2 mm Durchmesser).
Die Kornrohdichte kann zur Berechnung des Anteils fester Substanz und der Porosität von Bodenschichten in Verbindung mit dem Verfahren nach ISO 11272 verwendet werden.

Qualité du sol - Détermination de la masse volumique des particules (ISO 11508:2017)

ISO 11508:2017 spécifie deux méthodes permettant de déterminer la masse volumique des particules qui constituent les sols, à partir de la masse et du volume de ces dernières.
La première méthode (4.1) est utilisable pour la terre fine (de diamètre <2 mm), et la seconde méthode (4.2) est utilisable pour les graviers et cailloux (de diamètre >2 mm) poreux ou non poreux.
La masse volumique des particules peut être utilisée, conjointement avec le mode opératoire spécifié dans l'ISO 11272, pour calculer la fraction de matière solide et la porosité des couches de sol.

Kakovost tal - Določevanje gostote delcev (ISO 11508:2017)

Ta dokument določa dve metodi za določevanje gostote delcev tal, ki se izračuna iz mase in prostornine delcev tal.
Prva metoda (4.1) se uporablja za drobnozrnata tla (premer < 2 mm), druga (4.2) pa se uporablja za porozen in neporozen gramoz ter kamenje (premer > 2 mm).
Gostota delcev se v kombinaciji s postopkom iz standarda ISO 11272 lahko uporabi za izračun deleža trdih delcev in poroznosti plasti tal.

General Information

• Status: Published
• Public Enquiry End Date: 12-Sep-2016
• Publication Date: 10-Dec-2017
• ICS: 13.080.20 - Physical properties of soils
• Technical Committee: KAT - Soil quality
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 12-Oct-2017
• Due Date: 17-Dec-2017
• Completion Date: 11-Dec-2017
• Ref Project: EN ISO 11508:2017 - Soil quality - Determination of particle density (ISO 11508:2017)

Relations

• Replaces: SIST EN ISO 11508:2014 - Soil quality - Determination of particle density (ISO 11508:1998)
• Effective Date: 01-Jan-2018
• Replaces: SIST ISO 11508:2002 - Soil quality - Determination of particle density
• Effective Date: 01-Jan-2018

Overview

EN ISO 11508:2017 - Soil quality: Determination of particle density (ISO 11508:2017) specifies two validated laboratory methods to determine the particle density of soils from measured mass and particle volume. Particle density (mass of oven‑dry solids divided by particle volume, including internal pores but excluding inter-particle voids) is a critical property used alongside dry bulk density to calculate soil porosity and the proportion of solids in a soil layer.

This European adoption of ISO 11508 (approved November 2017) is intended for environmental and geotechnical laboratories, research institutes and practitioners performing soil characterization for agriculture, remediation, civil engineering and environmental monitoring.

Key topics and technical requirements

• Two methods by particle size
  • Method 4.1 - Fine soil (< 2 mm): Pycnometer method. Key steps include sieving (<2 mm), air‑drying, determination of reference water content, wetting and de‑aeration in a pycnometer, temperature control and use of water density to compute particle density.
  • Method 4.2 - Gravel and stones (> 2 mm): Immersion/buoyancy method for porous and non‑porous coarse material using a suspended frame/dish; cleaning (e.g., sodium hexametaphosphate), oven drying (105 ± 2 °C) and de‑aeration of immersed water are required.
• Apparatus and accuracy requirements
  • Thermometer accurate to 0.1 °C, laboratory balances (fine‑soil balance to 0.1 mg), calibrated pycnometer (20–50 cm3 recommended), vacuum desiccator with self‑indicating desiccant, ISO 565 conforming 2 mm sieve.
• Calculations & reporting
  • Use measured masses and the density of water at the measured temperature (Annex A) to calculate particle density. The standard includes procedures for unified reference temperature and calculation of mean particle density. Typical inter‑laboratory SD for fine soils noted (~0.02–0.03 g·cm‑3).
• Quality and documentation
  • Requirements for sampling, de‑aeration, temperature control and test reporting to ensure repeatability and traceability.

Applications and users

• Environmental laboratories performing soil quality assessments, contaminated land investigations and remediation monitoring.
• Agricultural and pedological research requiring accurate porosity and solid fraction calculations.
• Geotechnical and civil engineering projects needing reliable soil physical properties for foundation, compaction and drainage design.
• Regulatory bodies and consultants standardizing soil testing protocols and reporting.

Related standards

• ISO 11272 - Dry bulk density and porosity calculations (used together with particle density).
• ISO 565 - Test sieves (aperture sizes).
• ISO 11461 - Determination of soil water content (gravimetric method).
• ISO/TC 190 (Soil quality) is the responsible technical body.

Keywords: EN ISO 11508:2017, particle density, soil quality, pycnometer, soil testing standard, porosity calculation, ISO 11508.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2018
1DGRPHãþD
SIST EN ISO 11508:2014
SIST ISO 11508:2002
.DNRYRVWWDO'RORþHYDQMHJRVWRWHGHOFHY,62
Soil quality - Determination of particle density (ISO 11508:2017)
Bodenbeschaffenheit - Bestimmung der Kornrohdichte (ISO 11508:2017)
Qualité du sol - Détermination de la masse volumique des particules (ISO 11508:2017)
Ta slovenski standard je istoveten z: EN ISO 11508:2017
ICS:
13.080.20 Fizikalne lastnosti tal Physical properties of soils
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 11508
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2017
EUROPÄISCHE NORM
ICS 13.080.20 Supersedes EN ISO 11508:2014
English Version
Soil quality - Determination of particle density (ISO
11508:2017)
Qualité du sol - Détermination de la masse volumique Bodenbeschaffenheit - Bestimmung der Kornrohdichte
des particules (ISO 11508:2017) (ISO 11508:2017)
This European Standard was approved by CEN on 23 August 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 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR 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 Ref. No. EN ISO 11508:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
European foreword
This document (EN ISO 11508:2017) has been prepared by Technical Committee ISO/TC 190 “Soil
quality” in collaboration with Technical Committee 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 May 2018, and conflicting national standards shall be
withdrawn at the latest by May 2018.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 11508:2014.
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 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 the United Kingdom.
Endorsement notice
The text of ISO 11508:2017 has been approved by CEN as EN ISO 11508:2017 without any modification.

INTERNATIONAL ISO
STANDARD 11508
Second edition
2017-09
Soil quality — Determination of
particle density
Qualité du sol — Détermination de la masse volumique des particules
Reference number
ISO 11508:2017(E)
©
ISO 2017
ISO 11508:2017(E)
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
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ii © ISO 2017 – All rights reserved

ISO 11508:2017(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Procedure. 1
4.1 Fine soil (<2 mm diameter) . 1
4.1.1 Principle . 1
4.1.2 Apparatus . 2
4.1.3 Sampling. 2
4.1.4 Density determination . 2
4.1.5 Calculation . 2
4.2 Gravel and stones (>2 mm diameter) . 3
4.2.1 Apparatus . 3
4.2.2 Density determination . 3
4.2.3 Calculation . 4
4.3 Unified reference temperature . 5
4.4 Calculation of mean particle density . 5
5 Test report . 5
Annex A (informative) Density of water at different temperatures . 6
Bibliography . 9
ISO 11508:2017(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
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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, Part 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 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. 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 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 assessment, as well as information about ISO's 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 is ISO/TC 190, Soil quality, Subcommittee SC 3,
Chemical methods and soil characteristics.
This second edition cancels and replaces the first edition (ISO 11508:1998), which has been technically
revised.
The main changes compared to the previous edition are as follows:
a) the terms and definitions have been updated;
b) a new subclause 4.3 “Unified reference temperature” was added;
c) a new subclause 4.4 “Calculation of mean particle density” was added;
d) Table 1, “Density of water…”, was deleted under 4.1.4;
e) a new Annex A “Density of water at different temperatures” was added;
f) bibliographic references were added;
g) editorial changes were made.
iv © ISO 2017 – All rights reserved

ISO 11508:2017(E)
Introduction
b
This document specifies the particle density (ρ ) which is used together with the dry bulk density (ρ ,
s s
see ISO 11272) for the calculation of the pore volume of a soil layer.
INTERNATIONAL STANDARD ISO 11508:2017(E)
Soil quality — Determination of particle density
1 Scope
This document specifies two methods for the determination of particle density of soils calculated from
the mass and the volume of soil particles.
The first method (4.1) is applicable to fine soil (<2 mm diameter) and the second method (4.2) is
applicable to both porous and nonporous gravel and stones (>2 mm diameter).
The particle density can be used for the calculation of the proportion of solids and of the porosity of soil
layers in combination with the procedure given in ISO 11272.
2 Normative references
The following 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
...