SIST EN 13160-3:2016+A1:2025

SLOVENSKI STANDARD
01-januar-2025
Nadomešča:
SIST EN 13160-3:2016
Sistemi za kontrolo tesnosti - 3. del: Zahteve in metode za preskušanje in
ocenjevanje sistemov s tekočino za rezervoarje (vključno z dopolnilom A1)
Leak detection systems - Part 3: Requirements and test/assessment methods for liquid
systems for tanks
Leckanzeigesysteme - Teil 3: Anforderungen und Prüf-/Bewertungsmethoden für
Flüssigkeitssysteme für Tanks
Systèmes de détection de fuites - Partie 3: Exigences et méthodes d'essai/d'évaluation
des systèmes à liquide pour des réservoirs
Ta slovenski standard je istoveten z: EN 13160-3:2016+A1:2024
ICS:
23.020.10 Nepremične posode in Stationary containers and
rezervoarji tanks
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.

EN 13160-3:2016+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2024
EUROPÄISCHE NORM
ICS 23.020.01; 23.040.99 Supersedes EN 13160-3:2016
English Version
Leak detection systems - Part 3: Requirements and
test/assessment methods for liquid systems for tanks
Systèmes de détection de fuites - Partie 3: Exigences et Leckanzeigesysteme - Teil 3: Anforderungen und Prüf-
méthodes d'essai/d'évaluation des systèmes à liquide /Bewertungsmethoden für Flüssigkeitssysteme für
pour des réservoirs Tanks
This European Standard was approved by CEN on 8 April 2016 and includes Amendment 1 approved by CEN on 11 September
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 13160-3:2016+A1:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 6
3 Terms and definitions . 7
4 Requirements . 7
4.1 Effectiveness . 7
4.1.1 General . 7
4.1.2 Leak detection kit. 7
4.1.3 Measure the level change (Sensing device) . 7
4.1.4 Requirements for software (only if provided) . 10
4.2 Durability of effectiveness . 10
4.2.1 Durability of effectiveness against temperature . 10
4.2.2 Durability of effectiveness against chemical attack . 10
4.2.3 Durability of effectiveness against microbiological growth . 11
5 Testing, assessment and sampling methods . 11
5.1 Effectiveness of leak detection kits . 11
5.1.1 General function . 11
5.1.2 Leak detection kit. 11
5.1.3 Measure the level change (Sensing device) . 11
5.1.4 Software . 16
5.2 Durability of effectiveness . 17
5.2.1 Durability of effectiveness against temperature . 17
5.2.2 Durability of effectiveness against chemical attack . 19
5.2.3 Durability of effectiveness against microbiological growth . 20
6 Assessment and verification of constancy of performance – AVCP. 22
6.1 General . 22
6.2 Type testing . 22
6.2.1 General . 22
6.2.2 Test samples, testing and compliance criteria . 23
6.2.3 Test reports . 23
6.2.4 Shared other party results . 23
6.2.5 Cascading determination of the product type results . 24
6.3 Factory production control (FPC) . 25
6.3.1 General . 25
6.3.2 Requirements . 26
6.3.3 Product specific requirements . 28
6.3.4 Procedure for modifications . 28
6.3.5 One-off products, pre-production products (e.g. prototypes) and products produced
in very low quantity . 29
7 Marking, labelling and packaging . 30
8 Environmental aspects . 30
Annex A (informative) Environmental aspects . 31
Annex B (normative) Test of the compatibility of leak detection liquids with metals . 33
B.1 Test equipment . 33
B.2 Test specimen . 33
B.3 Preparation of the test liquid . 34
B.4 Procedure . 34
B.5 Test results . 35
Bibliography . 38

European foreword
This document (EN 13160-3:2016+A1:2024) 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 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 May 2025, and conflicting national standards shall be
withdrawn at the latest by August 2026.
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 includes Amendment 1 approved by CEN on 11 September 2024.
This document supersedes !EN 13160-3:2016".
The start and finish of text introduced or altered by amendment is indicated in the text by tags !".
!deleted text"
According to edition 2003 the following fundamental changes are given:
— requirements and test methods for the leak detection liquids revised;
— consideration of the Construction Product Regulation 305/2011/EU;
— new structure — technical requirements for the system provided consisting of sensing device,
evaluation device, alarm device;);
— including of environmental aspects;
— requirements from EN 13160-1:2003 included, which are no longer contained in EN 13160-1:2016;
— requirements for software included;
— reference to REACH — Regulation (EC) No 1907/2006 of the European Parliament and of the
Council of 18 December 2006 concerning the Registration, Evaluation, Authorization and
Restriction of Chemicals (REACH), establishing a European Chemicals Agency and GHS — Globally
Harmonized System of Classification and Labelling of Chemicals (GHS)
— using of temperature types;
— crevice test pieces and test method changed.
This European Standard Leak detection systems consists of 7 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
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 organizations 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 European Standard gives requirements and the corresponding test/assessment methods
applicable to leak detection kits based on the drop of the liquid level in the leak detection liquid
reservoir. Leak detection kits are intended to be used with double skin, underground or above ground,
non-pressurized, tanks designed for water polluting liquids.
The liquid leak detection kits are usually composed of:
— sensing device (liquid sensor);
— 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 981:1996+A1:2008, Safety of machinery — System of auditory and visual danger and information
signals
EN 1412, Copper and copper alloys — European numbering system
EN 1652, Copper and copper alloys — Plate, sheet, strip and circles for general purposes
EN 10027–1, Designation systems for steels — Part 1: Steel names
EN 12285-1, Workshop fabricated steel tanks — Part 1: Horizontal cylindrical single skin and double skin
tanks for the underground storage of flammable and non-flammable water polluting liquids
EN 12285-2, Workshop fabricated steel tanks — Part 2: Horizontal cylindrical single skin and double skin
tanks for the aboveground storage of flammable and non-flammable water polluting liquids
EN 13160–1:2016, Leak detection systems — Part 1: General Principles
EN 13160–7, Leak detection systems — Part 7: Requirements and test/assessment methods for interstitial
spaces, leak detection linings and leak detection jackets
EN 13341:2005+A1:2011, Static thermoplastic tanks for above ground storage of domestic heating oils,
kerosene and diesel fuels — Blow moulded and rotationally moulded polyethylene tanks and rotationally
moulded tanks made of anionically polymerized polyamide 6 — Requirements and test methods
EN 27888, Water quality — Determination of electrical conductivity (ISO 7888)
EN 60079-0:2012, Explosive atmospheres — Part 0: Equipment — General requirements (IEC 60079-
0:2011, modified + Cor.:2012)
EN 61672-1, Electroacoustics — Sound level meters — Part 1: Specifications (IEC 61672-1)
EN ISO 175:2010, Plastics — Methods of test for the determination of the effects of immersion in liquid
chemicals (ISO 175:2010)
EN ISO 2719, Determination of flash point — Pensky-Martens closed cup method (ISO 2719)
EN ISO 3104, Petroleum products — Transparent and opaque liquids — Determination of kinematic
viscosity and calculation of dynamic viscosity (ISO 3104)
EN ISO 12185, Crude petroleum and petroleum products — Determination of density — Oscillating U-tube
method (ISO 12185)
ISO 431, Copper refinery shapes
ISO 7619-1, Rubber, vulcanized or thermoplastic — Determination of indentation hardness — Part 1:
Durometer method (Shore hardness)
ASTM D 1177, Standard Test Method for Freezing Point of Aqueous Engine Coolants
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13160-1:2016 apply.
4 Requirements
4.1 Effectiveness
4.1.1 General
This type of leak detection kit is classified according to EN 13160-1:2016 as class II.
The general requirements on leak detection systems according to Clause 5 of EN 13160-1:2016 shall be
met.
The interstitial space shall fulfil the requirements according to EN 13160-7, EN 12285-1 or EN 12285-2.
NOTE To ensure the effectiveness of the system a liquid leak detection kit can only serve one tank.
A complete documentation shall be provided by the manufacturer. The documentation shall contain the
technical values according to 4.1.3 to 4.1.4 and 4.2 as well as a statement about the reaction of the leak
detection kit by over and under power supply voltage and current.
4.1.2 Leak detection kit
The leak detection kit shall consist of:
— sensing device (liquid sensor);
— evaluation device;
— alarm device.
4.1.3 Measure the level change (Sensing device)
4.1.3.1 Leak detection liquid reservoir
The leak detection liquid reservoir shall have a useable volume of:
— at least 1 l/100 l of leak detection liquid in the interstitial space of tanks with at least 0,3 m earth
cover;
— at least 1 l/35 l of leak detection liquid in the interstitial space for all other tanks.
Leak detection liquid reservoir shall have a vent hole of minimum 20 mm open cross-section.
The useable volume of the leak detection liquid reservoir is considered to be 50 % of the volume
between the liquid level existing just before the visual or audible alarm is issued and the top edge of the
leak detection liquid reservoir or the air vent (if the latter is located at a lower level).
A facility for checking the tank level (inspection window or level plug) shall be provided. The latter shall
divide the volume between the liquid level at alarm indication and the top edge of the leak detection
liquid reservoir and/or the vent hole in two.
Leak detection liquid reservoirs that are simultaneously intended as a visual indicator shall be
adequately transparent or be equipped with a level indicator.
The leak detection liquid reservoirs shall be positioned so that the hydrostatic pressure of the leak
detection liquid at the lowest point of the interstitial space is at least 3 kPa higher than both the
maximum pressure of stored product at the lowest point of the tank (including any operating pressure)
and the maximum pressure of the groundwater at the lowest point of the tank.
The leak detection liquid reservoir shall be positioned so that the pressure in the interstitial space shall
not exceed 92 % of p .
t2
NOTE p is defined in EN 13160-2.
t2
For leak detection liquid reservoir installed in a potentially explosive atmosphere the electrical surface
resistance of polymer materials shall be less than 1 GΩ, if the greatest projected surface is > 100 cm .
For further information see 7.4.2 of EN 60079-0:2012.
Polymer materials for leak detection liquid reservoirs shall be weather resistant according to Table 1 of
EN 13341:2005+A1:2011.
4.1.3.2 Leak detection liquid
4.1.3.2.1 General
The manufacturer shall specify which leak detection liquids are suitable for the leak detection system
and which leak detection liquids can be mixed.
NOTE 1 If the term “leak detection liquid” is used in the standard the concentrate of leak detection liquid
diluted with water according to the ratio specified by the manufacturer is meant.
NOTE 2 Leak detection liquid can only be mixed if its compatibility is approved.
Leak detection liquids shall have the properties according to 4.1.3.2.2 to 4.1.3.2.9.
4.1.3.2.2 Electrical conductivity
-1
The leak detection liquid shall have an electrical conductivity greater than 10 mS m , if required.
4.1.3.2.3 Viscosity
2 -1
The leak detection liquid shall have a viscosity not greater than 200 mm s for the temperature range
according to 4.2.1.
4.1.3.2.4 Freezing point
The leak detection liquid shall have a freezing point below the minimum temperature of the
appropriate temperature range according to 4.2.1.
4.1.3.2.5 Flash point
The leak detection liquid shall have a flash point not below +80 °C.
4.1.3.2.6 Thermal expansion
−4 -1
The leak detection liquid shall have a coefficient of thermal expansion not exceeding 5 × 10 K at a
temperature of +20 °C.
4.1.3.2.7 Segregation and formation of colloidal or solid deposition
The deposit volume of the leak detection liquid shall not be greater than 0,5 cm /l and the solid
materials of the deposit shall have a maximum grain size of 0,125 mm diameter.
4.1.3.2.8 Compatibility with metallic materials
The leak detection liquid shall have no deleterious corrosion effects on the materials with which they
may be expected to come into contact.
4.1.3.2.9 Reaction with the stored product
The leak detection liquid shall have no reaction with the stored product which causes an exothermic
reaction, volumetric expansion or the generation of vapour
4.1.3.3 Connection line between leak detection liquid reservoir and interstitial space
If a separate leak detection liquid reservoir is used the free passage of leak detection liquid is given
when the connection line has an internal diameter of minimum 13 mm. The connection lines shall
ensure the internal diameter over the life time given by the manufacturer. The minimum allowed bend
radius of the hose given by the manufacturer shall not be fallen below.
The Shore hardness of hoses tested according to ISO 7619-1 shall be minimum 65 Shore A at a
temperature of (20 ± 5) °C.
The leak detection liquid reservoir shall have the possibility to be complete emptied in case of a leak in
the interstitial space.
The connection line between leak detection liquid reservoir and interstitial space installed in
potentially explosive atmosphere of zone 1 shall have an electrical surface resistance less than 1 GΩ.
This requirement concerning conductive connection lines of polymer materials becomes no longer
necessary if
— the outer diameter of the connection lines is ≤ 30 mm for potentially explosive atmospheres of
group II A and II B according to EN 60079-0
or
— the outer diameter of the connection lines is ≤ 20 mm for potentially explosive atmospheres of
group II C according to EN 60079-0
or
— the wall thickness of the connection lines is ≤ 2 mm for potentially explosive atmospheres of group
II A and II B according to EN 60079-0 by using conductive leak detection liquid
or
— the wall thickness of the connection lines is ≤ 0,2 mm for potentially explosive atmospheres of
group II C according to EN 60079-0 by using conductive leak detection liquid.
For further information see 7.4.2 of EN 60079-0:2012.
Polymer materials for connection lines shall be weather resistant according to Table 1 of
EN 13341:2005+A1:2011.
4.1.3.4 Liquid sensor
In the event of a sensor disconnection of the power supply an alarm condition shall result.
The sensor shall give a signal within 30 s after the leak detection liquid is no longer in contact with the
sensor.
The sensor shall have a measurable recovery time of max 30 s after immersing into the leak detection
liquid.
The system shall remain in the alarm condition until the sensor has recovered and the alarm has been
reset.
4.1.3.5 Alarm device
The alarm device shall generate an audible and visible alarm. The audible alarm shall have a sound level
of ≥ 70 dB (A) in a distance of minimum 1 m with a signal according to Table 1 of
EN 981:1996+A1:2008 which shall be maintained for a minimum period of 36 h.
The visible alarm shall be clearly indicated i.e. by a “red” light. The visible alarm shall have no switch off
option.
A test possibility shall be provided to test the functionality of the audible and visible alarm.
The alarm device should be designed for connecting an additional alarm device, e.g. signal horn. The
output parameter shall be stated.
4.1.4 Requirements for software (only if provided)
The software, where provided, shall have a facility for self-checking by fulfilling the following
requirements:
— a self-diagnostic mode to test the integrity of the system at start up and periodically during use. A
negative result of self-diagnostic mode shall result in an alarm condition;
— a facility to check the consistency of the input and output data, malfunction shall result in an alarm
condition.
4.2 Durability of effectiveness
4.2.1 Durability of effectiveness against temperature
alarm cycles.
At a temperature of (20 ± 5) °C the leak detection kit shall be work proper after 1 × 10
The temperature ranges for leak detection kits shall be as follows:
— Type 1: −20 °C to +60 °C;
— Type 2: 0 °C to +40 °C;
— Type 3: −40 °C to +40 °C.
4.2.2 Durability of effectiveness against chemical attack
4.2.2.1 Polymer materials
Plastic parts of liquid leak detection kits that can get into contact with the leak detection liquid or its
vapour shall be resistant.
4.2.2.2 Metals
The leak detection liquid shall not corrode metal components of the leak detection system.
4.2.3 Durability of effectiveness against microbiological growth
The leak detection liquid shall have fungicidal properties.
5 Testing, assessment and sampling methods
5.1 Effectiveness of leak detection kits
5.1.1 General function
For the tests minimum one sample shall be provided by the manufacturer.
For the tests the following documentation shall be provided by the manufacturer:
— instruction(s) according to Clause 7;
— datasheet of the parts of the leak detection kit;
— datasheet for the leak detection liquid;
— electrical diagrams of the parts of the leak detection kit;
— design and application drawings;
— parts lists of the used components including material data;
— certification for the conductivity and weather resistance of polymer materials.
Leak detection kits shall be inspected visually to confirm that the sample complies with the
documentation.
5.1.2 Leak detection kit
Visual test shall be carried out that the leak detection kit consists of sensing device, evaluation device
and alarm device.
5.1.3 Measure the level change (Sensing device)
5.1.3.1 Leak detection liquid reservoir
Leak detection liquid reservoir shall be inspected visually to confirm that the sample complies with the
documentation.
5.1.3.2 Leak detection liquid
5.1.3.2.1 General
The documentation of the manufacturer shall be inspected.
5.1.3.2.2 Electrical conductivity
The electrical conductivity shall be tested according to EN 27888.
5.1.3.2.3 Viscosity
The viscosity of the leak detection liquid shall be determined according to EN ISO 3104.
5.1.3.2.4 Freezing point
The freezing point of the leak detection liquid shall be determined in accordance with ASTM D 1177.
5.1.3.2.5 Flash point
The flash point of the leak detection liquid shall be determined according to EN ISO 2719.
5.1.3.2.6 Thermal expansion
The coefficient of thermal expansion of the leak detection liquid shall be determined according to
EN ISO 12185.
5.1.3.2.7 Segregation and formation of colloidal or solid deposition
5.1.3.2.7.1 Test equipment
— a strainer of 0,2 mm inside mesh width 0,125 mm diameter and 0,325 mm mesh clearance;
— a graduated conical separating funnel according to Squibb with a nominal volume of 1 l;
— 1 l leak detection liquid.
5.1.3.2.7.2 Preparation
1 l of leak detection liquid shall be brought into contact with the materials relevant to testing its
tendency to de-mix and precipitate deposits.
5.1.3.2.7.3 Procedure
The leak detection liquid shall be stored at ambient temperature (20 ± 5) °C for 56 days in the
graduated conical separating funnel with a tap at the bottom.
The leak detection liquid shall be inspected for de-mixing and deposition.
The volume of the deposit shall be measured at the graduation at the lowest level of the conical
separating funnel, see Figure 1.
After opening the tap of the separating funnel the deposit shall be tested whether it will pass completely
through the strainer.
Key
1 conical separating funnel, 1 l
2 graduation
3 cock
4 sieve
Figure 1 — Conical separating funnel
5.1.3.2.7.4 Evaluation
If the deposit volume is greater than 0,5 cm /l, or if it does not pass completely through the strainer,
then the leak detection liquid shall be deemed to have failed the test.
5.1.3.2.8 Compatibility with metallic materials
According to Annex B.
5.1.3.2.9 Reaction with stored product
5.1.3.2.9.1 Test equipment
— adiabatic calorimeter with maximum working pressure of 14 MPa (140 bar) with an accuracy of
50 kPa (500 mbar) and a temperature range from 0 °C to 500 °C with an accuracy of 0,1 K;
— measuring cell of the adiabatic calorimeter for
— temperature range from 10 °C to 200 °C and a measurement of temperature change of
-1
minimum 100 K min ;
— pressure range 100 kPa (1 bar) to 1 MPa (10 bar) and a measurement of pressure change of
-1 -1
minimum 50 kPa min (500 mbar min );
— temperature measuring device with measurement range from 0 °C to 500 °C within an accuracy
of ± 0,1 K;
— pressure measuring device with measurement range from 0 kPa (0 bar) to 20 MPa (200 bar) within
an accuracy of ± 10 mbar;
— time measuring device having a time indication in steps of 1 s, within an accuracy of ± 1 s;
— 150 cm concentrate of leak detection liquid.
5.1.3.2.9.2 Preparation
3 3
For one test 50 cm concentrate of the leak detection liquid and 50 cm of the stored product are
required.
5.1.3.2.9.3 Procedure
The test shall follow the principle of adiabatic calorimetric. The concentrate of leak detection liquid and
suitable sample of the stored product shall be tested as a solution in the ratio 1:1 inside of the adiabatic
calorimeter according to the instruction for use. Three replication tests shall be carried out.
Temperature and pressure shall be recorded.
5.1.3.2.9.4 Evaluation
In-between test duration of 120 min there shall be no increase of temperature of ± 0,1 K and pressure of
+1 kPa (+0,01 bar) of the test solution in every replication test.
5.1.3.3 Connection line between leak detection liquid reservoir and interstitial space
Connection line between leak detection liquid reservoir and interstitial space shall be inspected visually
to confirm that the sample complies with the documentation.
5.1.3.4 Liquid sensor
5.1.3.4.1 Test equipment
For type test:
— a test vessel with a minimum volume of 1 l;
— temperature measuring device within an accuracy of ± 1 K;
— time measuring device having a time indication in steps of 1 s, within an accuracy of ± 1 s;
— minimum 0,5 l of concentrate of leak detection liquid.
5.1.3.4.2 Preparation
a) For type test:
The sensor shall be installed in the test vessel for the function test in such a way that it can be immersed
either by changing the level of leak detection liquid or by raising and lowering of the sensor.
The concentrate of leak detection liquid shall be diluted with water according to the ratio specified by
the manufacturer for the lowest temperature.
The sensor under test shall be connected to the evaluation and to the alarm device.
b) For factory production control:
The sensor and the evaluation device can be tested separately.
The sensor shall be installed on a test fixture which is able to represent that the sensor is in contact
with the leak detection liquid and vice versa by mechanical, electrical or pneumatic behaviour.
The evaluation device shall be installed on a test fixture which is able to represent the output signal of
the sensor by mechanical, electrical or pneumatic behaviour.
5.1.3.4.3 Procedure
The response time from the sensor activation until the triggering of the optical and audible alarm shall
be recorded. The test has to be repeated for every combination of sensor activation possible.
a) For type test:
The leak detection kits shall be tested at a temperature of (20 ± 5) °C. The liquid sensor shall be
immersed in the leak detection liquid. Then the liquid sensor shall be removed from the leak
detection liquid. The time from the removing until the optical and audible alarm is triggered shall
be recorded.
The liquid sensor shall be immersed again in the leak detection liquid. The recovery time from
immersion of the liquid sensor in the leak detection liquid until the switch off of the alarm shall be
recorded.
b) For factory production control:
1) For the sensor:
A status shall be established which simulates the sensor not being in contact with the leak detection
liquid.
A status shall be established which simulates the sensor being in contact with the leak detection
liquid.
In each step the output signal of the sensor shall be measured.
2) For the evaluation device:
A status shall be established which simulates a sensor signal indicating the leak detection liquid is
not present. The time from triggering the event until the evaluation device is turning on the alarm
shall be recorded.
A status shall be established which simulates a sensor signal indicating the leak detection liquid is
present. The time from triggering the event until the evaluation device is turning off the alarm shall
be recorded.
5.1.3.4.4 Evaluation
After removal of the sensor from the liquid an alarm shall be triggered within 30 s.
After immersion of the sensor the alarm shall be switched off within 30 s.
After an interruption of a single core cable of the supply of the sensor an alarm shall be triggered.
5.1.3.5 Alarm device
5.1.3.5.1 Test equipment
-2
— A solid wall, having a surface area of ≥ 1 m and weighs at least 200 kg m . The absorption
coefficient for sound shall be ≤ 0,05;
— sound level meter class 2 according to EN 61672-1;
— the continuous sound level of the surrounding shall be < 60 dB (A).
5.1.3.5.2 Preparation
For the purpose of this test the leak detection kits with the alarm device shall be mounted with the
fastening device supplied by the manufacturer to a solid wall.
5.1.3.5.3 Procedure
a) Check the visible and audible alarm.
b) The audible alarm device shall be sounded continuously for at least 36 h in a fatigue test. On
completion of the fatigue test the sound level shall be measured. The arithmetic mean shall be
taken from at least three measuring points.
These measuring points shall be located approximately equidistant on a hemisphere extending over the
leak detection kit front. The radius of the hemisphere shall be r = 1 m. The outer measuring points are
to be chosen such that the radius describes an angle of 45° referred to the leak detection kit or indicator
front at these points.
5.1.3.5.4 Evaluation
The test will be deemed to have been passed if the measured value for the continuous sound level
according to 5.1.3.5.3 is ≥ 70 dB (A) after the fatigue test.
5.1.4 Software
5.1.4.1 Test equipment
— Transformer (variable power supply);
— measuring device for current/voltage.
5.1.4.2 Preparation
The test set-up shall be according to Figure 2.

Key
1 test sample
2 variable power supply
3 measuring device
Figure 2 — Test setup for software
The power supply is done over a transformer to vary the power supply.
5.1.4.3 Procedure
The test shall be carried out at (20 ± 5) °C.
— Check of the software documentation whether and for which situations the self-diagnostic is
defined. Followed by a check on the hardware.
— The input data are modified and in the result shall be an alarm/error message. This alarm condition
shall be different from the alarm coming out of the intended use.
5.1.4.4 Evaluation
The test deemed to have been passed if the software
— provides an alarm condition in case of a negative result of self-diagnostic mode;
— has a facility to check the consistency of the input and output data, malfunction shall result in an
alarm condition.
5.2 Durability of effectiveness
5.2.1 Durability of effectiveness against temperature
5.2.1.1 Test equipment
— A test vessel with a minimum volume of 1 l;
— environmental chamber the temperature of which can be varied over the range from −40 °C to
+70 °C within an accuracy of 2 K;
— cycle counter;
— time measuring device having a time indication in steps of 1 s to a total of 24 h, within an accuracy
of ± 1 s;
— minimum 0,5 l of concentrate of leak detection liquid for every type according to temperature
range.
5.2.1.2 Preparation
The sensor shall be installed in the test vessel for the function test in such a way that it can be immersed
either by changing the level of leak detection liquid or by raising and lowering of the sensor.
The concentrate of leak detection liquid shall be diluted with water according to the ratio specified by
the manufacturer suitable for the appropriate type according to temperature range.
All equipment shall be installed in an environmental chamber for the function test. The sensor under
test shall be connected to the evaluation device.
5.2.1.3 Procedure
The reliability test of the alarm transmitter and the sensors shall be carried out as follows:
— at a temperature of (20 ± 5) °C with 1 × 10 alarm cycles; the sensor shall be immersed and
emerged once per test cycle in the liquid and the alarm shall operate in every case;
— for Type −25 °C to +25 °C – Test sequence 1
1:
+25 °C to +70 °C - Test sequence 2
— for Type −5 °C to +25 °C - Test sequence 1
2:
+25 °C to +50 °C - Test sequence 2
— for Type −40 °C to +25 °C - Test sequence 1
3:
+25 °C to +50 °C - Test sequence 2
— Test sequence 1 over a period of 120 h. The starting temperature shall be the lowest temperature
for each type. The temperature profile shall be according to Figure 3 with an accuracy of 2 K for the
temperature and 15 min for the time. The cycle shall be repeated every 24 h.

Key
X time in h
Y temperature in °C
a one cycle
Figure 3 — Example for type 1, test sequence 1
— Test sequence 2 over a period of 120 h. The starting temperature shall be the highest temperature
for each type. The temperature profile shall be according to Figure 4 with an accuracy of 2 K for the
temperature and 15 min for the time. The cycle shall be repeated every 24 h.
Key
X time in h
Y temperature in °C
a one cycle
Figure 4 — Example for type 1, test sequence 2
During the total test time a leak shall be simulated at time intervals of approximately 5 min by removing
the leak detection liquid from contact with the sensor until the alarm operates.
The time to alarm shall be measured and recorded at least once during the stable period at each
maximum and minimum temperature.
5.2.1.4 Evaluation
The test shall be deemed to have been passed if the alarm setting after the test cycle or after the time
interval was triggered.
5.2.2 Durability of effectiveness against chemical attack
5.2.2.1 Polymer materials
5.2.2.1.1 Test equipment
— according to EN ISO 175;
— test samples or parts of the leak detection kit, which are exposed to the leak detection liquid;
— minimum 10 l leak detection liquid.
5.2.2.1.2 Preparation
The parts of the leak detection kit, which are exposed to the leak detection liquid, shall be identified.
According to EN ISO 175.
5.2.2.1.3 Procedure
According to EN ISO 175, but with a test time of 4 weeks and a test temperature of (60 ± 5) °C.
5.2.2.1.4 Evaluation
Qualitatively estimated changes: None or barely perceptible according to Table 1 of EN ISO 175:2010.
5.2.2.2 Metals
According to Annex B.
5.2.3 Durability of effectiveness against microbiological growth
WARNING — Persons using this European Standard should be familiar with normal laboratory
practice in a microbiological laboratory. This standard does not purport to address all of the
safety problems, if any, associated with its use. It is the responsibility of the user to establish
appropriate safety and health practices and to ensure compliance with any national regulatory
conditions.
5.2.3.1 Test equipment
— 13 conical flasks 300 ml;
— autoclave;
-1
— rotary shaking device, rotational speed of 150 min ;
— environmental chamber the temperature of which can be varied over the range from +25 °C to
+150 °C within an accuracy of 2 K;
— suitable quantities of test medium A (mineral salt solution without assimilatable source of carbon)
– see Table 1 for composition;
— suitable quantities of test medium B (sabouraud medium) - see Table 2 for composition;
— minimum 1 l of concentrate of leak detection liquid.
5.2.3.2 Preparation
Thirteen conical flasks of a volume of 300 ml each shall be filled with 70 ml mineral salt solution
(medium A – refer to Table 1) and 70 ml Sabouraud maltose solution (medium B – refer to Table 2) and
shall be sterilized for a minimum of 20 min at (121 ± 2) °C.
Five flasks per medium shall be filled with 70 ml of leak detection liquid.
Five more flasks shall be filled with 70 ml concentrate of leak detection liquid diluted with water at a
ratio of 1:1.
Three more flasks shall be served for controlling the growth of the test fungi. Therefore 3,5 ml castor oil
shall be added to the solution instead of the leak detection liquid.
5.2.3.3 Procedure
All flasks shall be cooled down and temperate in the environmental chamber to (28 ± 2) °C.
After temperate, 1 ml of a suspension of mixed spores (test fungi - refer to Table 3) shall be injected into
each of the flasks. The so inoculated flasks shall be then incubated in a rotary shaking device for six days
and temperature of (28 ± 2) °C.
5.2.3.4 Evaluation
Any growth of the fungi shall be visually examined and recorded according to the following categories:
0 = no growth;
1 = growth of mycelium is limited to scarce
...