EN 932-3:2022

SLOVENSKI STANDARD
01-september-2022
Nadomešča:
SIST EN 932-3:1999
SIST EN 932-3:1999/A1:2004
Preskusi splošnih lastnosti agregatov - 3. del: Postopek in izrazje
poenostavljenega petrografskega opisa
Tests for general properties of aggregates - Part 3: Procedure and terminology for
simplified petrographic description
Prüfverfahren für allgemeine Eigenschaften von Gesteinskörnungen - Teil 3:
Durchführung und Terminologie einer vereinfachten petrographischen Beschreibung
Essais pour déterminer les propriétés générales des granulats - Partie 3 : Procédure et
terminologie pour la description pétrographique simplifiée
Ta slovenski standard je istoveten z: EN 932-3:2022
ICS:
91.100.15 Mineralni materiali in izdelki Mineral materials and
products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 932-3
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2022
EUROPÄISCHE NORM
ICS 91.100.15 Supersedes EN 932-3:1996
English Version
Tests for general properties of aggregates - Part 3:
Procedure and terminology for simplified petrographic
description
Essais pour déterminer les propriétés générales des Prüfverfahren für allgemeine Eigenschaften von
granulats - Partie 3 : Procédure et terminologie pour la Gesteinskörnungen - Teil 3: Durchführung und
description pétrographique simplifiée Terminologie einer vereinfachten petrographischen
Beschreibung
This European Standard was approved by CEN on 20 April 2022.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, 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: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 932-3:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions. 5
4 Reagent and apparatus . 6
5 Sampling and preparation of test portion . 7
5.1 General . 7
5.2 Rock sample . 7
5.3 Aggregates . 7
6 Test procedure . 7
6.1 Description of a rock sample . 7
6.2 Description of an aggregate test portion . 8
7 Test report . 9
7.1 Required data . 9
7.2 Optional data . 9
Annex A (informative) Nomenclature . 11
A.1 General . 11
A.2 Igneous rocks . 11
A.3 Sedimentary materials . 14
A.4 Metamorphic rocks . 16
A.5 Mineral ore . 17
Bibliography . 18

European foreword
This document (EN 932-3:2022) has been prepared by Technical Committee CEN/TC 154 “Aggregates”,
the secretariat of which is held by BSI.
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 December 2022, and conflicting national standards shall
be withdrawn at the latest by December 2022.
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 932-3:1996.
In comparison with the previous edition, the following technical modifications have been made:
a) The Scope has been revised to emphasize that the method only applies for simplified (not precise)
petrographic description of natural aggregates, and that it does not apply to manufactured or
recycled aggregates. The Scope, and the whole standard, now uses the term petrographic type, which
is used in the product standards. Note 1 has been reworded to show the role of the petrographer,
without normative wording. Presentation of Annex A has been included;
b) The Foreword and Normative references have been updated;
c) Clauses 3 Terms and definitions and 4 Reagent and apparatus have been extended;
d) Clauses 5 Sampling, 6 Description of a rock sample and 7 Description of an aggregate sample, have
been revised. They have been clarified, restructured and renamed to 5 Sampling and preparation of
test portion and 6 Test procedure, which is further divided into examination, description and
designation;
e) Test report has been revised and adapted to the current rules;
f) Annex A has been updated, restructured and extended with three illustrating figures;
g) The Bibliography has been updated and extended.
This document forms part of a series of standards for general properties of aggregates. Test methods for
other properties of aggregates are covered by the following European Standards:
— EN 933 (all parts), Tests for geometrical properties of aggregates
— EN 1097 (all parts), Tests for mechanical and physical properties of aggregates
— EN 1367 (all parts), Tests for thermal and weathering properties of aggregates
— EN 1744 (all parts), Tests for chemical properties of aggregates
— EN 13179 (all parts), Tests for filler aggregate used in bituminous mixtures
The other parts of EN 932 include:
— Part 1: Methods for sampling
— Part 2: Methods for reducing laboratory samples
— Part 5: Common equipment and calibration
— Part 6: Definitions of repeatability and reproducibility
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
1 Scope
This document specifies a basic procedure for the identification of the petrographic type of natural
aggregates. It applies for usual requirements for the procedure and terminology for simplified
petrographic description. Precise petrographic identification, of technical mineralogy and petrography
for civil engineering or specific end uses, requires further examination and is therefore excluded from the
scope of this document.
NOTE 1 In principle, a qualified geologist (petrographer), with experience of materials used in civil engineering
and aware of the composition of the deposit, has sufficient skills to sample and name the rock.
NOTE 2 For precise petrographic identification and technical requirements for specific applications, a non-
exhaustive list of reference literature is given in the Bibliography.
This document applies only to natural aggregates. It is used to describe rocks and sediments. It does not
apply to the description and identification of manufactured or recycled aggregates.
Informative Annex A provides guidance on the petrographic nomenclature by giving definitions of simple
petrographic terms applicable to rock types used for aggregates.
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, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 932-1, Tests for general properties of aggregates - Part 1: Methods for sampling
EN 932-2, Tests for general properties of aggregates - Part 2: Methods for reducing laboratory samples
EN 933-2, Tests for geometrical properties of aggregates - Part 2: Determination of particle size distribution
- Test sieves, nominal size of apertures
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/ui
— IEC Electropedia: available at https://www.electropedia.org/
3.1
rocks
3.1.1
rock
natural solid substance composed of crystals or minerals
Note 1 to entry: The term also includes the relatively rare natural glasses. Rocks are classified into three categories
according to their origin: igneous, sedimentary and metamorphic.
3.1.2
igneous rock
rock crystallized from molten rock (magma) either at or below the earth's surface, with a nomenclature
which is based on the mineralogical composition
Note 1 to entry: Rocks formed below the earth’s surface can be divided into two classes, plutonic and hypabyssal.
Plutonic rocks are formed at depth in large bodies and typically have a coarse crystalline texture, with crystals
clearly visible to the naked eye. Hypabyssal rocks are formed in smaller bodies near, but not at, the earth's surface
and have usually a fine crystalline texture.
Note 2 to entry: Extrusive or volcanic rocks are formed as lavas and pyroclastics at the earth's surface and have a
very fine or glassy texture.
3.1.3
sedimentary rock
rock formed by solidification of sedimentary deposits, trough diagenesis and lithification
Note 1 to entry: Generally, sedimentary rocks are stratified and they are classified into the same categories as
sediment. Both sedimentary rocks and sediments form the sedimentary materials.
3.1.4
metamorphic rock
rock transformed from a pre-existing rock by fluids or heat (contact metamorphism) and pressure in the
earth's crust (burial metamorphism)
Note 1 to entry: Metamorphism changes the mineral content and composition and the microstructure of the pre-
existing rock, dominantly by solid state chemical reactions. Metamorphism is often associated with tectonic
processes and therefore, metamorphic rocks frequently have anisotropic textures.
3.2
sediment
natural deposit composed of unsolidified fragments of rocks or minerals
Note 1 to entry: Sediments are classified into three categories according to their origin: clastic or detrital, chemical
and biogenic. Clastic sediments are products of mechanical weathering (e.g. sand or gravel), chemical sediments are
products of chemical weathering (e.g. kaolin clay) and biogenic sediments are products of organisms (fossils,
microfossils, etc.).
3.3
laboratory sample
sample intended for laboratory testing
3.4
test portion
sample used as a whole in a single test
4 Reagent and apparatus
4.1 Test sieve
...