prEN 13160-4
(Main)Leak detection systems - Part 4: Requirements and test/assessment methods for sensor-based leak detection systems
Leak detection systems - Part 4: Requirements and test/assessment methods for sensor-based leak detection systems
This document gives requirements and the corresponding test/assessment methods applicable to sensor-based leak detection systems (leak detectors) for liquids and/or for gases. The leak detectors are intended to be used in interstitial spaces, leakage containments or monitoring wells. The leak detectors are usually composed of:
- sensing device(s);
- evaluation device;
- alarm device.
Leckanzeigesysteme - Teil 4: Anforderungen und Prüf-/Bewertungsmethoden für sensorbasierte Leckanzeigesysteme
Dieses Dokument legt Anforderungen an und die einschlägigen Prüf-/Bewertungsverfahren für sensorbasierte Leckanzeigesysteme (Leckdetektoren) für Flüssigkeiten und/oder Gase fest. Die Leckdetektoren sind für die Verwendung in Überwachungsräumen, Leckageräumen oder Überwachungsschächten bestimmt. Die Leckdetektoren bestehen in der Regel aus:
- Messfühlereinrichtung(en);
- Auswerteeinrichtung;
- Alarmeinrichtung.
Systèmes de détection de fuites - Partie 4 : Exigences et méthodes ďessai/ďévaluation des systèmes de détection de fuites par capteur
Le présent document spécifie les exigences et les méthodes d'essai/d'évaluation correspondantes applicables aux capteurs des systèmes de détection (détecteurs de fuites) pour liquides et/ou pour gaz. Les détecteurs de fuites sont prévus pour être utilisés dans les espaces interstitiels, les espaces de confinement des fuites ou les puits piézométriques. Les détecteurs de fuites sont généralement constitués des éléments suivants :
- dispositif(s) de mesurage ;
- dispositif d'évaluation ;
- dispositifs d'alarme.
Sistemi za kontrolo tesnosti - 4. del: Zahteve in metode za preskušanje in ocenjevanje senzorskih sistemov za zaznavanje netesnosti
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2025
Sistemi za kontrolo tesnosti - 4. del: Zahteve in metode za preskušanje in
ocenjevanje senzorskih sistemov za zaznavanje netesnosti
Leak detection systems - Part 4: Requirements and test/assessment methods for sensor-
based leak detection systems
Leckanzeigesysteme - Teil 4: Anforderungen und Prüf-/Bewertungsmethoden für
sensorbasierte Leckanzeigesysteme
Systèmes de détection de fuites - Partie 4 : Exigences et méthodes ďessai/ďévaluation
des systèmes de détection de fuites par capteur
Ta slovenski standard je istoveten z: prEN 13160-4
ICS:
23.020.01 Vsebniki za shranjevanje Fluid storage devices in
tekočin na splošno general
23.040.99 Drugi sestavni deli za Other pipeline components
cevovode
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2025
ICS 23.020.01; 23.040.99; 29.260.20 Will supersede EN 13160-4:2016+A1:2024
English Version
Leak detection systems - Part 4: Requirements and
test/assessment methods for sensor-based leak detection
systems
Systèmes de détection de fuites - Partie 4 : Exigences et Leckanzeigesysteme - Teil 4: Anforderungen und Prüf-
méthodes dessai/dévaluation des systèmes de /Bewertungsmethoden für sensorbasierte
détection de fuites par capteur Leckanzeigesysteme
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 393.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13160-4:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Requirements . 4
4.1 Effectiveness . 4
4.1.1 General. 4
4.1.2 Presence of liquids . 5
4.1.3 Presence of vapours . 5
4.1.4 Re-usability of the sensor . 5
4.1.5 Requirements for software (only if provided) . 5
4.2 Durability of effectiveness . 6
4.2.1 Durability of effectiveness against temperature . 6
4.2.2 Durability of effectiveness against chemical attack . 6
5 Testing, assessment and sampling methods . 6
5.1 Effectiveness of the leak detection systems . 6
5.1.1 General. 6
5.1.2 Presence of liquid . 7
5.1.3 Presence of vapours . 10
5.1.4 Re-usability of the discriminating and non-discriminating sensors . 10
5.1.5 Re-usability of vapour sensors . 12
5.1.6 Software (only if provided) . 12
5.2 Durability of effectiveness . 13
5.2.1 Durability of effectiveness against temperature . 13
5.2.2 Durability of effectiveness against chemical attack . 14
6 Checking the functionality and durability . 16
6.1 General. 16
6.2 Type testing . 16
6.2.1 General. 16
6.2.2 Test samples and testing . 16
6.2.3 Test reports . 17
6.3 Factory production control . 17
6.3.1 General. 17
6.3.2 Scope of testing . 17
6.3.3 Customised products manufactured in very small quantities. 17
7 Marking, labelling and packaging . 17
Bibliography . 19
European foreword
This document (prEN 13160-4:2025) has been prepared by Technical Committee CEN/TC 393
“Equipment for storage tanks and for filling stations”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13160-4:2016+A1:2024.
This document includes the following significant technical changes with respect to
EN 13160-4:2016+A1:2024:
— clarified in 4.1.1 that these are either liquid sensors or gas sensors;
— in 4.2.1 remove the temperatures and refer to Part 1;
— in 5.2.1.3.2 and 5.2.1.3.3 clarification of test 2;
— in 5.2.2.3 and 5.2.2.4 references to chapter numbers corrected;
— Clause 6 has been revised and renamed to Checking the functionality and durability.
The EN 13160 series, under the general title Leak detection systems, is composed of the following parts:
— Part 1: General principles
— Part 2: Requirements and test/assessment methods for pressure and vacuum systems
— Part 3: Requirements and test/assessment methods for liquid systems for tanks
— Part 4: Requirements and test/assessment methods for sensor-based leak detection systems
— Part 5: Requirements and test/assessment methods for in-tank gauge systems and pressurized
pipework systems
— Part 6: Sensors in monitoring wells
— Part 7: Requirements and test/assessment methods for interstitial spaces, leak detection linings and
leak detection jackets
1 Scope
This document gives requirements and the corresponding test/assessment methods applicable to
sensor-based leak detection systems (leak detectors) for liquids and/or for gases. The leak detectors are
intended to be used in interstitial spaces, leakage containments or monitoring wells. The leak detectors
are usually composed of:
— sensing device(s);
— evaluation device;
— alarm device.
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 228, Automotive fuels — Unleaded petrol — Requirements and test methods
EN 13160-1:2016, Leak detection systems — Part 1: General principles
EN 13160-3:2016+A1:2024, Leak detection systems — Part 3: Requirements and test/assessment methods
for liquid systems for tanks
EN 14879-4:2007, Organic coating systems and linings for protection of industrial apparatus and plants
against corrosion caused by aggressive media — Part 4: Linings on metallic components
EN 60079-29-1, Explosive atmospheres — Part 29-1: Gas detectors — Performance requirements of
detectors for flammable gases
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13160-1:2016 and the following
apply.
3.1
re-usability of the sensor
capability of a sensor to be used again after already having detected liquid or vapour
4 Requirements
4.1 Effectiveness
4.1.1 General
This type of leak detector is classified according to EN 13160-1:2016 as class III.
The general requirements for leak detection systems set out in EN 13160-1:2016, Clause 5, shall be met.
Liquid sensors shall be tested with liquid and gas sensors shall be tested with gas.
Liquid or vapour sensors shall be installed in such a way that they can detect specific liquids or their
vapours present in or entering the leakage containment, interstitial space or monitoring wells. The sensor
shall react within a time specified by the manufacturer.
The leakage containment can take the form of a:
— sump or riser designed to contain spills from leaks originating from pipe or pumps/dispensers;
— retaining device (bund), designed to contain leakage from an aboveground storage tank or from any
other above ground facility containing liquids;
— other facilities in which sensors can be installed to detect the presence of liquids or vapours.
An alarm device in accordance with EN 13160-3:2016+A1:2024, 4.1.3.5 shall be provided.
In the event of a sensor disconnection of the power supply an alarm condition shall result.
In case of a short circuit between two conductors in the connection between sensor and evaluation device
an alarm shall be triggered.
4.1.2 Presence of liquids
Liquid sensors shall detect specific liquids they might come into contact with (e.g. stored/conveyed
product, water) in accordance with the following requirements:
Category 1: Non-discriminating sensor.
— The sensor shall detect the presence of any liquid (stored/conveyed product and water).
Category 2: Discriminating sensor.
— Category 2A: The sensor shall detect the presence of liquid stored/conveyed product or water and
discriminate between the two aforementioned.
— Category 2B: The sensor shall detect the presence of a film of liquid (stored/conveyed product)
floating on water with a vapour pressure ≥ 30 kPa at 20 °C.
4.1.3 Presence of vapours
The sensor shall detect specific vapours of flammable liquids with a vapour pressure ≥ 30 kPa at 20 °C if
−6
their concentration corresponds to a volume fraction ≤ 1 000 × 10 .
4.1.4 Re-usability of the sensor
Any re-useable sensor shall be a
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