SIST EN 12594:2025

SLOVENSKI STANDARD
01-januar-2025
Nadomešča:
SIST EN 12594:2014
Bitumen in bitumenska veziva - Priprava preskusnih vzorcev
Bitumen and bituminous binders - Preparation of test samples
Bitumen und bitumenhaltige Bindemittel - Vorbereitung von Untersuchungsproben
Bitumes et liants bitumineux - Préparation des échantillons d'essai
Ta slovenski standard je istoveten z: EN 12594:2024
ICS:
75.140 Voski, bitumni in drugi naftni Waxes, bituminous materials
proizvodi and other petroleum products
91.100.50 Veziva. Tesnilni materiali Binders. Sealing materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 12594
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2024
EUROPÄISCHE NORM
ICS 75.140; 91.100.50 Supersedes EN 12594:2014
English Version
Bitumens and bituminous binders - Preparation of test
samples
Bitumes et liants bitumineux - Préparation des Bitumen und bitumenhaltige Bindemittel -
échantillons d'essai Vorbereitung von Untersuchungsproben
This European Standard was approved by CEN on 26 August 2024.

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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12594:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle . 5
5 Reagents . 5
6 Apparatus . 5
7 Procedure for preparation of test samples . 6
7.1 General . 6
7.2 Solid or semi-solid samples . 6
7.2.1 Samples up to one litre . 6
7.2.2 Samples greater than one litre . 7
7.3 Soft paving grade bitumen, cut-back and fluxed bitumen . 8
7.4 Bituminous emulsions . 8
7.4.1 Conditioning of the emulsions prior to preparation for testing . 8
7.4.2 Test samples for sieve residue testing according to EN 1429 and settling tendency
testing according to EN 12847 . 9
7.4.3 Test samples for all tests except EN 1429 and EN 12847 . 9
7.5 Test samples obtained from a specific procedure . 9
8 Test report .10
Bibliography .11

European foreword
This document (EN 12594:2024) has been prepared by Technical Committee CEN/TC 336 “Bitumens and
bituminous binders”, the secretariat of which is held by AFNOR.
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 April 2025, and conflicting national standards shall be
withdrawn at the latest by April 2025.
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 12594:2014.
— definitions of laboratory sample and test sample have been reviewed;
— definitions of test specimen and melting have been added;
— reference to most reageants and materials have been deleted as already covered in other standards;
— description of apparatus has been completed;
— procedure in Clause 7 has been modified to ensure consistency with test standards and to better
precise conditions, in particular heating time and heating temperatures;
— structure of 7.4 has been modified to facilitate its reading;
— recommendations on the storage of emulsions have been added.
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, Türkiye and the United
Kingdom.
1 Scope
This document specifies methods for preparing test samples of bitumens and bituminous binders in order
to test their properties.
WARNING — The use of this document can involve hazardous materials, operations and equipment. This
document does not purport to address all of the safety problems associated with its use. It is the
responsibility of the user of this document to establish appropriate safety and health practices and to
determine the applicability of regulatory limitations prior to use.
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 58, Bitumen and bituminous binders — Sampling bituminous binders
EN 1425, Bitumen and bituminous binders — Characterization of perceptible properties
EN 1427, Bitumen and bituminous binders — Determination of the softening point — Ring and Ball method
EN 1429:2013, Bitumen and bituminous binders — Determination of residue on sieving of bituminous
emulsions, and determination of storage stability by sieving
EN 12597, Bitumen and bituminous binders — Terminology
EN 12847, Bitumen and bituminous binders — Determination of settling tendency of bituminous emulsions
EN ISO 3696:1995, Water for analytical laboratory use — Specification and test methods (ISO 3696:1987)
ISO 3310-1:2016, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire
cloth
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12597 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org
3.1
laboratory sample
sample of bitumen or bituminous binder taken in accordance with EN 58 and incoming into laboratory
for tests
Note 1 to entry: The term “laboratory sample” does not apply to samples from material containing bitumen and
bituminous binders, e.g. asphalt mixtures or cores, as they are sampled differently from those described in EN 58.
Note 2 to entry: The laboratory sample may be a spot sample, a composite sample, or a part thereof (a divided
sample).
3.2
test sample
sample produced by treatment or subdivision of a laboratory sample (3.1) for individual testing
Note 1 to entry: The same test sample can be treated to prepare various tests in parallel; some test methods need
preparation of test specimen, while for others a portion of the test sample will be used directly.
3.3
test specimen
specimen for specific tests prepared from a test sample (3.2)
Note 1 to entry: In principle, details on the test specimen preparation are described in the respective test
standards, where applicable, and are not within the scope of EN 12594. However, EN 12594 is covering common
areas like temperatures or duration of preparation.
3.4
melting
heating the sample to lower its viscosity and ensure homogeneity while preparing test samples (3.2) and
test specimens (3.3)
4 Principle
Incoming laboratory samples are prepared for testing depending on their type and their size. This
includes preparation of test specimens noting that more detailed information on their preparation may
also be given in test standards.
5 Reagents
Only reagents of recognized standard analytical grade and water conforming to grade 3 of
EN ISO 3696:1995 shall be used.
6 Apparatus
The usual laboratory apparatus and glassware, together with the following shall be used.
6.1 Ventilated laboratory oven with a maximum permissible measurement error of ±5 °C, checked in
working space at suitable intervals.
6.2 Indirect heating apparatus, e.g. heating jacket, oil bath with thermometer or equivalent.
6.3 Container of appropriate material (i.e. heat resistant and not interacting with the sample) to heat
the sample.
6.4 Lid or aluminium foil for container (6.3).
6.5 Any appropriate stirrer, e.g. manual (such as spatula), mechanical equipped with a propeller or
magnetic.
6.6 Metal sieve, mesh size 0,500 mm, in accordance with ISO 3310-1:2016.
6.7 Test sample container of appropriate material with a lid or other closure.
NOTE Test sample container can be the one originally used to sample the bituminous binder in accordance
with EN 58.
6.8 Test containers or moulds for test specimen preparation, as described in the respective test
standards, into which the test sample is transferred prior to testing. It may be that the test sample is not
stored in a test sample container (6.7) but directly transferred into moulds or test containers.
6.9 Cooling chamber, if necessary, allowing to condition the samples between 18 °C and 28 °C.
7 Procedure for preparation of test samples
7.1 General
In order to produce the laboratory sample, the material shall have been sampled in accordance with
EN 58.
Perceptible properties of the laboratory sample shall be checked in accordance with EN 1425, prior to
sample preparation according to this document.
7.2 Solid or semi-solid samples
7.2.1 Samples up to one litre
Ease the lid (6.4) or other closure of the container (6.3) and place the container with the lid loose in the
oven (6.1). The temperature of the oven shall be set at not more than (85 ± 5) °C above the expected
softening point measured in accordance with EN 1427; this includes the maximum permissible
measurement error described in 6.1.
For modified bitumen, use the procedure provided by the supplier. If no guidance is provided, for polymer
modified bitumen complying with EN 14023 [11], the temperature of the oven shall be set at (190 ± 5) °C,
irrespective from t
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