EN ISO 13428:2024

SLOVENSKI STANDARD
oSIST prEN ISO 13428:2023
01-september-2023
Geosintetika - Ugotavljanje zaščitne učinkovitosti geosintetike proti poškodbam
zaradi udarcev (ISO/DIS 13428:2023)
Geosynthetics - Determination of the protection efficiency of a geosynthetic against
impact damage (ISO/DIS 13428:2023)
Geokunststoffe - Bestimmung der Schutzwirksamkeit eines Geokunststoffes bei
Stoßbelastung (ISO/DIS 13428:2023)
Géosynthétiques - Détermination de l'efficacité de protection d'un géosynthétique contre
l'effet d'un impact (ISO/DIS 13428:2023)
Ta slovenski standard je istoveten z: prEN ISO 13428
ICS:
59.080.70 Geotekstilije Geotextiles
oSIST prEN ISO 13428:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN ISO 13428:2023
oSIST prEN ISO 13428:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 13428
ISO/TC 221 Secretariat: BSI
Voting begins on: Voting terminates on:
2023-07-14 2023-10-06
Geosynthetics — Determination of the protection
efficiency of a geosynthetic against impact damage
Géosynthétiques — Détermination de l'efficacité de protection d'un géosynthétique contre l'effet d'un
impact
ICS: 59.080.70
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
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NATIONAL REGULATIONS.
ISO/DIS 13428:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
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PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

oSIST prEN ISO 13428:2023
ISO/DIS 13428:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 13428
ISO/TC 221 Secretariat: BSI
Voting begins on: Voting terminates on:

Geosynthetics — Determination of the protection
efficiency of a geosynthetic against impact damage
Géosynthétiques — Détermination de l'efficacité de protection d'un géosynthétique contre l'effet d'un
impact
ICS: 59.080.70
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
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NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 13428:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
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TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

oSIST prEN ISO 13428:2023
ISO/DIS 13428:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Test specimens . 3
5.1 Sampling . 3
5.2 Number and dimensions of test specimens . 3
5.3 Conditioning. 3
6 Apparatus (see Figure 1) .3
6.1 Probe . 3
6.2 Specimen support . 3
6.3 Lead plate . 4
6.4 Thickness gauge . 5
7 Test procedure .5
8 Calculation . 6
9 Test report . 7
Annex A (informative) Performance testing . 8
Bibliography . 9
iii
oSIST prEN ISO 13428:2023
ISO/DIS 13428:2023(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
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
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.
For an explanation of 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
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 221 Geosynthetics.
This fourth edition cancels and replaces the third edition (ISO 13428:2005), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— normative references have been updated;
— the quote of fall height in Figure 1 has been corrected;
— thickness of lead plate has been modified to 2,0 mm.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
oSIST prEN ISO 13428:2023
DRAFT INTERNATIONAL STANDARD ISO/DIS 13428:2023(E)
Geosynthetics — Determination of the protection
efficiency of a geosynthetic against impact damage
1 Scope
This document describes an index test for the determination of the protection efficiency of a
geosynthetic on a hard surface, exposed to the impact load of a hemispherical object.
The index test measures the change in thickness of a thin lead plate lying between the geosynthetic and
a rigid support.
It is also used as a performance test, by using the real rigid surface to protect and the real sequence of
geosynthetics.
The test is applicable to all geosynthetics with apertures smaller than 15 mm (maximum size).
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.
ISO 554, Standard atmospheres for conditioning and/or testing — Specifications
ISO 9862, Geosynthetics — Sampling and preparation of test specimens
ISO 9863-1, Geosynthetics — Determination of thickness at specified pressures — Part 1: Single layers
ISO 9864, Geosynthetics — Test method for the determination of mass per unit area of geotextiles and
geotextile-related products
ISO 10318-1, Geosynthetics — Terms and definitions
EN 12588, Lead and lead alloys — Rolled lead sheet for building purposes
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 10318-1 and the following
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
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
lead plate thickness
s
thickness of the thin lead plate
Note 1 to entry: Plate thickness is expressed in millimetres.
oSIST prEN ISO 13428:2023
ISO/DIS 13428:2023(E)
3.2
initial lead plate thickness
s
i
lead plate thickness under an applied pressure of 2 kPa
Note 1 to entry: Initial plate thickness is expressed in millimetres.
3.3
residual lead plate thickness
s
r
lead plate thickness after an impact, in the centre of the impact area
Note 1 to entry: Residual lead plate thickness is expressed in millimetres.
3.4
probe
hemispherical mass used to produce the impact on the geosynthetic specimen
Note 1 to entry: The probe is shown in Figure 3.
3.5
nominal specimen thickness
t
n
thickness of the specimen when subjected to an applied normal stress of 2 kPa, when measured in
accordance with ISO 9863-1
Note 1 to entry: Nominal specimen thickness is expressed in millimetres.
4 Principle
A geosynthetic test specimen is subjected to an impact load produced by a rigid probe with a
hemispherical head. The probe hits the specimen with a known energy.
The specimen lies on a rigid support, consisting of a thick steel plate of set characteristics and
dimensions. A thin lead plate is placed between the steel plate and the specimen.
The five specimens are each subjected to one impact. A single lead plate can be used for all five
specimens.
The residual thickness of the lead plate is measured in the impacted areas and the average residual
thickness is calculated.
The impact energy is given by:
E = F × h (1)
where
E is the impact energy, in joules;
F is the weight of the probe, in newtons;
h is the distance between top surface of the specimen and bottom point of the probe before re-
leasing the trigger, in metres.
oSIST prEN ISO 13428:2023
ISO/DIS 13428:2023(E)
5 Test specimens
5.1 Sampling
Take specimens shall be in accordance with ISO 9862.
5.2 Number and dimensions of test specimens
Cut five specimens for each face from the test sample. A new set of specimens is required for each test.
Specimens shall meet the following criteria:
— the shape of the specimen shall be square (see Figure 2);
— the minimum size of the specimen shall be 60 mm × 60 mm (see Figure 2).
5.3 Conditioning
The test specimens shall be
...