EN 13922:2020

SLOVENSKI STANDARD
01-april-2020
Nadomešča:
SIST EN 13922:2011
Cisterne za prevoz nevarnega blaga - Oprema za obratovanje cistern - Sistemi za
preprečitev prepolnitve za tekoča goriva
Tanks for transport of dangerous goods - Service equipment for tanks - Overfill
prevention systems for liquid fuels
Tanks für die Beförderung gefährlicher Güter - Bedienungsausrüstung von Tanks -
Überfüllsicherungssysteme für flüssige Kraft- und Brennstoffe
Citernes destinées au transport de matières dangereuses - Équipement de service pour
citernes - Dispositifs limiteurs de remplissage pour carburants pétroliers liquides
Ta slovenski standard je istoveten z: EN 13922:2020
ICS:
13.300 Varstvo pred nevarnimi Protection against dangerous
izdelki goods
23.020.20 Posode in vsebniki, montirani Vessels and containers
na vozila mounted on vehicles
43.080.10 Tovornjaki in priklopniki Trucks and trailers
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 13922
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2020
EUROPÄISCHE NORM
ICS 13.300; 23.020.20 Supersedes EN 13922:2011
English Version
Tanks for transport of dangerous goods - Service
equipment for tanks - Overfill prevention systems for
liquid fuels
Citernes destinées au transport de matières Tanks für die Beförderung gefährlicher Güter -
dangereuses - Équipement de service pour citernes - Bedienungsausrüstung von Tanks -
Dispositifs limiteurs de remplissage pour carburants Überfüllsicherungssysteme für flüssige Kraft- und
pétroliers liquides Brennstoffe
This European Standard was approved by CEN on 1 December 2019.

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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13922:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Functions . 8
5 Major components . 8
5.1 Tank-vehicle mounted equipment . 8
5.2 Equipment fitted at the gantry . 8
5.3 Optional equipment . 8
6 Characteristics . 8
6.1 Overfill prevention system working characteristics . 8
6.2 Sensors . 10
6.3 Overfill prevention controller characteristics . 11
6.4 Cable, plug and socket interface . 12
7 Testing . 13
7.1 General . 13
7.2 Type tests . 13
7.3 Production tests . 14
8 Safety integrity level (SIL) . 14
9 Marking . 15
10 Installation, operation and maintenance instructions . 15
Annex A (normative) Electrical specifications . 16
Bibliography . 34

European foreword
This document (EN 13922:2020) has been prepared by Technical Committee CEN/TC 296 “Tanks for
the transport of dangerous goods”, 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 August 2020, and conflicting national standards shall
be withdrawn at the latest by February 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 13922:2011.
In comparison with the 2011 edition, the following fundamental changes were made:
— safety integrity level (SIL) added;
— requirements and tests for electromagnetic compatibility (EMC) revised;
— temperature for the sensors extended to +60 °C;
— electrical requirements in 6.3.7 expanded for clarification;
— waveform signal changed to waveform pulse throughout the standard;
— Annex A tables and figures revised to reflect installed base;
— the word "peak" was added in Table A.3 before "sensor current" only for clarification;
— referred standards updated.
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.
Introduction
The overfill prevention system prevents the maximum filling level of a compartment of a tank-vehicle
from being exceeded by interrupting the filling operation on the loading site.
It is not the function of an overfill prevention system to prevent volume or weight overloading. The
function of the overfill prevention system is the final means of containing the loaded product within a
compartment and preventing a dangerous condition. It is therefore of critical importance that all
components have a high degree of reliability and that all European gantries provide a compatible
system with the tank-vehicles.
Not all the components of an overfill prevention system are necessarily supplied by one manufacturer
but may include cross-compatible parts supplied by different manufacturers/suppliers. However, cross-
compatibility does not mean interchangeability.
1 Scope
This document specifies the following points regarding the minimum requirements for an overfill
prevention system:
— functions;
— major components;
— characteristics;
— test methods.
This document is applicable to overfill prevention systems for liquid fuels having a flash point up to but
not exceeding 100 °C, excluding liquefied petroleum gas (LPG).
NOTE Vapour path detection is not part of this standard but can be provided as an option.
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 590, Automotive fuels - Diesel - Requirements and test methods
EN 60079-0, Explosive atmospheres - Part 0: Equipment - General requirements (IEC 60079-0)
EN 60079-11, Explosive atmospheres - Part 11: Equipment protection by intrinsic safety “i”
(IEC 60079-11)
EN 60079-14, Explosive atmospheres - Part 14: Electrical installations design, selection and erection IEC
60079-14)
EN 61000-4-3, Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement techniques -
Radiated, radio-frequency, electromagnetic field immunity test (IEC 61000-4-3)
EN 61000-6-4, Electromagnetic compatibility (EMC) - Part 6-4: Generic standards - Emission standard for
industrial environments (IEC 61000-6-4)
EN 61508-1, Functional safety of electrical/electronic/programmable electronic safety-related systems -
Part 1: General requirements (IEC 61508-1)
EN 61511-1, Functional safety - Safety instrumented systems for the process industry sector — Part 1:
Framework, definitions, system, hardware and application programming Requirements (IEC 61511-1)
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:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
overfill prevention system
sensors or sensor circuits, interface plug/socket, overfill prevention controller and all connecting
wiring and cables
3.2
cross-compatibility
ability of one part of the overfill prevention system to be able to work safely and satisfactorily with
another part of the overfill prevention system although the parts are supplied by different
manufacturers
3.3
dry sensor
state of the sensor when not immersed in liquid
3.4
effective cycle time
period taken for the overfill prevention system to identify a fault condition and switch to a non-
permissive state
3.5
fail-safe
switching to a non-permissive state if any single component failure in the overfill prevention system
renders the overfill prevention system unable to detect an overfill or loss of earth connection
3.6
five-wire system
system which uses five wire interface signals for liquid level detection
3.7
gantry control system
system which controls the loading of product into the tank-vehicle
3.8
gantry control system reaction time
period commencing when the overfill prevention controller's output changes to non-permissive state
and ending with the cessation of all product flow after the closure of the gantry control valve
3.9
interoperable
ability of different parts of the overfill prevention system to operate together, and a functional aspect of
cross-compatibility
3.10
warm-up time
period to switch to a permissive state after plug connection is made to a tank-vehicle socket with no
sensor immersed in liquid
3.11
non-permissive
output state of the overfill prevention controller which disables liquid flow
3.12
overfill prevention controller
device mounted at the gantry which connects to the tank-vehicle and which provides a permissive
signal or non-permissive signal to the gantry control system
3.13
overfill prevention system response time
period commencing when a sensor becomes wet and ending when the controller output switches to
non-permissive signal
3.14
permissive
output state of the overfill prevention controller which enables liquid flow
3.15
self-checking
automatic and continuous checking of the integrity of an overfill prevention system’s components to
verify its ability to perform its minimum functions
3.16
sensor
device and any associated circuit mounted on or in a tank-vehicle’s compartment and connected to
inte
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