SIST EN 16321-2:2013

SLOVENSKI STANDARD
SIST EN 16321-2:2013
01-december-2013
Rekuperiranje bencinskih hlapov med polnjenjem motornih vozil na bencinskih
servisih - 2. del: Preskusne metode za overitev sistema za rekuperiranje
bencinskih hlapov na bencinskih servisih
Petrol vapour recovery during refuelling of motor vehicles at service stations - Part 2:
Test methods for verification of vapour recovery systems at service stations
Benzindampf-Rückführung während der Betankung von Kraftfahrzeugen an Tankstellen -
Teil 2: Prüfverfahren für die Kontrolle von Gasrückführungssystemen an Tankstellen
Récupération des vapeurs d'essence lors du ravitaillement en carburant des véhicules à
moteur dans les stations-service - Partie 2: Méthodes d'essai pour la vérification des
systèmes de récupération des vapeurs dans les stations-service
Ta slovenski standard je istoveten z: EN 16321-2:2013
ICS:
75.200 2SUHPD]DVNODGLãþHQMH Petroleum products and
QDIWHQDIWQLKSURL]YRGRYLQ natural gas handling
]HPHOMVNHJDSOLQD equipment
SIST EN 16321-2:2013 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 16321-2:2013

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SIST EN 16321-2:2013


EUROPEAN STANDARD
EN 16321-2

NORME EUROPÉENNE

EUROPÄISCHE NORM
September 2013
ICS 75.200
English Version
Petrol vapour recovery during refuelling of motor vehicles at
service stations - Part 2: Test methods for verification of vapour
recovery systems at service stations
Récupération des vapeurs d'essence lors du ravitaillement Benzindampf-Rückführung während der Betankung von
en carburant des véhicules à moteur dans les stations- Kraftfahrzeugen an Tankstellen - Teil 2: Prüfverfahren für
service - Partie 2: Méthodes d'essai pour la vérification des die Kontrolle von Gasrückführungssystemen an Tankstellen
systèmes de récupération des vapeurs dans les stations-
service
This European Standard was approved by CEN on 26 July 2013.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16321-2:2013: E
worldwide for CEN national Members.

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SIST EN 16321-2:2013
EN 16321-2:2013 (E)
Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Requirements for petrol vapour/petrol ratio .4
5 Measurement methods for in service tests .4
5.1 General .4
5.2 Sequence of tests .5
5.3 Preparation .6
5.4 Measurement principle with simulated petrol flow (dry test method) .6
5.4.1 Test procedure .6
5.4.2 Evaluation .7
5.5 Measurement principle with real petrol flow (wet test method A) .8
5.5.1 Test procedure .8
5.5.2 Evaluation .9
5.6 Measurement principle with real petrol flow (wet test method B) . 10
5.6.1 Test procedure . 10
5.6.2 Evaluation . 11
6 Automatic monitoring systems . 12
7 Test report . 12
8 Environmental aspects . 12
Annex A (normative) Monitoring systems  Test for deactivation of a delivery point . 13
Annex B (informative) Example of test report on the verification of vapour recovery systems . 14
Annex C (informative) Environmental aspects . 17

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SIST EN 16321-2:2013
EN 16321-2:2013 (E)
Foreword
This document (EN 16321-2:2013) 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 March 2014, and conflicting national standards shall be withdrawn at
the latest by March 2014.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
EN 16321, Petrol vapour recovery during refuelling of motor vehicles at service stations, is divided into the
following parts:
 Part 1: Test methods for the type approval efficiency assessment of petrol vapour recovery systems;
 Part 2: Test methods for verification of vapour recovery systems at service stations.
WARNING — Persons using this European Standard should be familiar with measurement principles.
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.
The application of this standard is only valid on installations that comply with manufacturer´s requirements.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
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SIST EN 16321-2:2013
EN 16321-2:2013 (E)
1 Scope
This European Standard specifies the test methods for verification of vapour recovery systems at service
stations (Stage II).
This European Standard does not specify the test method for the air and vapour tightness testing of the
vapour recovery systems at service stations.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 16321-1:2013, Petrol vapour recovery during refuelling of motor vehicles at service stations — Part 1: Test
methods for the type approval efficiency assessment of petrol vapour recovery systems
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 16321-1:2013 apply.
4 Requirements for petrol vapour/petrol ratio
The petrol vapour/petrol ratio shall be equal to or greater than 0,95 but less than or equal to 1,05.
5 Measurement methods for in service tests
5.1 General
In this European Standard three test methods for verification of vapour recovery systems at service stations
are described. For any verification only one method shall be employed.
The in service verification test shall only be carried out at ambient temperature between +5 °C to +25 °C
under real or simulated petrol flow conditions.
Where it has been demonstrated that the combination of vapour recovery system and the verification
equipment operates to this standard at a temperature range beyond +5 °C to +25 °C, there shall be a
technical file which defines:
 how this has been achieved;
 justification for the test method;
 the upper and lower temperature limits for performing the verification.
This technical file shall be available.
The seals of the weights and measures components of the fuel dispenser shall not be broken.
For all tests, the instructions of the manufacturer of the vapour recovery system shall be followed.
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SIST EN 16321-2:2013
EN 16321-2:2013 (E)
Consult manufacturer's instructions for the location of the permanently fixed label, in accordance with
EN 16321-1, which contains the setting data relevant for the measurements (pulsing rate of the fuel dispenser,
correction factor, certificate number of the built-in vapour recovery systems, etc.).
After testing, the system shall be returned to normal operation.
5.2 Sequence of tests
For each nozzle of the vapour recovery system to be tested the ambient temperature shall be measured at the
start and end of the test sequence using a temperature measuring device, measuring range 0 °C to 40 °C and
an accuracy of maximum ± 1 °C. The temperatures shall be recorded.
If the temperature at the start of the test is outside +5 °C to +25 °C no test shall be carried out except where
the temperature is within the extended temperature range according to 5.1.
If the temperature at the end of the test is outside +5 °C to +25 °C the test results are not valid except where
the temperature is within the temperature range according to 5.1.
The test sequence for each nozzle shall be as set out below and given in Figure 1.
Where the test result meets the requirement of Clause 4 the nozzle shall be considered to pass the test. No
further test is required.
Where the test result fails to meet the requirement of Clause 4 the nozzle shall be retested.
Where the test result fails to meet the requirement of Clause 4 the nozzle shall be considered to have failed.
No further test is required.
Where the test result meets the requirement of Clause 4 the nozzle shall be retested.
Where the test result meets the requirement of Clause 4 the nozzle shall be considered to pass the test. No
further test is required.
Where the test result fails to meet the requirement of Clause 4 the nozzle shall be considered to have failed.
No further test is required.
The results shall be recorded.
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SIST EN 16321-2:2013
EN 16321-2:2013 (E)
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