Petrol vapour recovery during refuelling of motor vehicles at service stations - Part 2: Test methods for verification of vapour recovery systems at service stations

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.

Benzindampf-Rückführung während der Betankung von Kraftfahrzeugen an Tankstellen - Teil 2: Prüfverfahren für die Kontrolle von Gasrückführungssystemen an Tankstellen

Die vorliegende Europäische Norm legt die Prüfverfahren für die Kontrolle von Gasrückführungssystemen an Tankstellen (Phase II) fest.
Diese Europäische Norm legt keine Prüfverfahren für die Prüfung von Gasrückführungssystemen an Tankstellen auf Luft  und Dampfdichtheit fest.

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

La présente Norme européenne spécifie les méthodes d’essai pour la vérification des systèmes de récupération des vapeurs d’essence dans les stations-service (phase II).
La présente Norme européenne ne spécifie pas la méthode pour les essais d’étanchéité à l’air et aux vapeurs des systèmes de récupération des vapeurs d’essence dans les stations-service.

Rekuperiranje bencinskih hlapov med polnjenjem motornih vozil na bencinskih servisih - 2. del: Preskusne metode za overitev sistema za rekuperiranje bencinskih hlapov na bencinskih servisih

Ta evropski standard določa preskusne metode za overitev sistemov za rekuperiranje bencinskih hlapov na bencinskih servisih (II. stopnja). Ta evropski standard ne določa preskusne metode za preskušanje neprepustnosti sistemov za rekuperiranje bencinskih hlapov za zrak in hlape na bencinskih servisih.

General Information

Status
Published
Publication Date
24-Sep-2013
Withdrawal Date
30-Mar-2014
Current Stage
9093 - Decision to confirm - Review Enquiry
Start Date
03-Dec-2024
Completion Date
14-Apr-2025

Overview

EN 16321-2:2013 (CEN) specifies in-service test methods for verification of petrol vapour recovery systems (Stage II) at service stations. It complements EN 16321‑1 (type-approval methods) by giving operators, installers and inspectors standardized procedures to verify system performance on-site. The standard defines test conditions, measurement set-ups, evaluation formulas and reporting requirements - but does not cover air/vapour tightness testing.

Key topics and requirements

  • Scope and use: Verification (in-service) of vapour recovery systems during vehicle refuelling (Stage II). Applicable to installations complying with the manufacturer’s requirements.
  • Pass criterion: The petrol vapour/petrol ratio shall be ≥ 0.95 and ≤ 1.05.
  • Ambient conditions: Tests shall be carried out at ambient temperature between +5 °C and +25 °C (extended ranges allowed if documented in a technical file).
  • Three measurement methods:
    • Dry (simulated petrol flow) - uses a simulated flow (example: (38.0 ± 1.0) l·min⁻¹) generated by a post-processing unit (PPU) to draw air through the vapour recovery system; evaluation uses measured air volume and a correction factor.
    • Wet (real petrol flow) - Method A - tested with nozzle fully open and real petrol flow (e.g., ≥ 25 l·min⁻¹ up to the certificate maximum); measured air volume is corrected by a system-specific factor.
    • Wet - Method B - alternative real-flow measurement method (document describes procedure and evaluation).
  • Measurement hardware & set-up:
    • Measuring adapter on nozzle, hose to gas volume meter; hose ≤ 3 m, protected against kinking, smooth inner walls, minimum internal diameter 10 mm.
    • Gas volume meter working range and accuracy requirements; calibration factor stored in PPU.
    • Time measurement and temperature measurement accuracy requirements are specified.
  • Evaluation: Formulas provided to compute petrol vapour/petrol ratio using measured volumes or flow rates and a correction factor k (from the system certificate).
  • Documentation: Test sequence, retest rules, automatic monitoring checks (Annex A), test report format (Annex B) and environmental aspects (Annex C).

Applications and users

  • Service station operators and maintenance teams performing routine verification of vapour recovery systems.
  • Equipment manufacturers and installers validating in-field performance.
  • Third‑party inspectors, conformity assessment bodies and regulators verifying compliance with European Stage II requirements.
  • Environmental and safety managers monitoring volatile organic compound (VOC) control at forecourts.

Related standards

  • EN 16321‑1:2013 - Test methods for the type approval efficiency assessment of petrol vapour recovery systems.
  • National implementations of EN 16321‑2:2013 as adopted by CEN member bodies.

Keywords: EN 16321-2:2013, petrol vapour recovery, vapour recovery systems, test methods, service stations, Stage II, CEN.

Frequently Asked Questions

EN 16321-2:2013 is a standard published by the European Committee for Standardization (CEN). Its full title is "Petrol vapour recovery during refuelling of motor vehicles at service stations - Part 2: Test methods for verification of vapour recovery systems at service stations". This standard covers: 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.

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.

EN 16321-2:2013 is classified under the following ICS (International Classification for Standards) categories: 75.200 - Petroleum products and natural gas handling equipment. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 16321-2:2013 is associated with the following European legislation: EU Directives/Regulations: 2009/126/EC, 2009/23/EC; Standardization Mandates: M/456. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

You can purchase EN 16321-2:2013 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

Standards Content (Sample)


SLOVENSKI STANDARD
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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.

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

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.
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.
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.
...

Questions, Comments and Discussion

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Die Norm EN 16321-2:2013 ist ein wesentlicher Bestandteil der europäische Standards für die Überprüfung von Dampfrückgewinnungssystemen an Tankstellen, insbesondere in Bezug auf die Phase II. Der Schwerpunkt dieser Norm liegt auf den Prüfmethoden, die für die Verifizierung der Systeme zur Rückgewinnung von Kraftstoffdämpfen während des Betankens von motorisierten Fahrzeugen erforderlich sind. Ein herausragendes Merkmal der EN 16321-2:2013 ist die detaillierte Darstellung der Testmethoden, die eine präzise und standardisierte Vorgehensweise bei der Überprüfung dieser Systeme ermöglichen. Diese Prüfmethoden sind nicht nur wichtig, um die Effizienz der Dampfrückgewinnungssysteme sicherzustellen, sondern auch, um die Einhaltung von umweltrechtlichen Vorschriften zu garantieren. Die Relevanz dieser Norm ist unbestritten, da sie nicht nur zur Reduzierung von Luftverschmutzung beiträgt, sondern auch dazu, die Sicherheit und den Gesundheitsschutz der Benutzer von Tankstellen zu verbessern. Die umfassenden Testmethoden gewährleisten eine zuverlässige Bewertung der Systeme, was in der praktischen Anwendung zu einer effektiveren Rückgewinnung von Kraftstoffdämpfen führt. Es ist zu beachten, dass die Norm keine Verfahren zur Prüfung der Luft- und Dampfdehnbarkeit der Rückgewinnungssysteme behandelt. Dies sollte bei der Anwendung der Norm berücksichtigt werden, um die Grenzen und den spezifischen Anwendungsbereich der EN 16321-2:2013 klar zu verstehen. Insgesamt bietet die Norm eine solide Grundlage für Betreiber von Tankstellen und Fachleute in der Industrie, die sich mit der Implementierung und Überprüfung von Dampfrückgewinnungssystemen befassen.

The EN 16321-2:2013 standard provides a comprehensive framework for the assessment of petrol vapour recovery systems during the refuelling of motor vehicles at service stations, specifically addressing the verification processes applicable to Stage II vapour recovery systems. The scope of this standard is pivotal as it sets forth the essential test methods that ensure these systems operate efficiently and effectively, thus minimizing vapour emissions that can contribute to air pollution and public health concerns. One of the significant strengths of this standard is its focus on the operational integrity of vapour recovery systems, which are crucial in controlling emissions from petrol refuelling activities. By specifying the methodologies for the verification of these systems, EN 16321-2:2013 plays a crucial role in ensuring compliance with environmental regulations and promoting sustainability within the automotive fuel industry. This proactive approach not only aims to protect the environment but also enhances the safety of service station operations. The relevance of EN 16321-2:2013 cannot be overstated, especially in an era of increasing environmental awareness and stringent regulatory frameworks. As nations strive to reduce carbon footprints and improve air quality, the application of standardized test methods for vapour recovery systems becomes indispensable. This standard provides a clear guideline that facilitates uniformity and consistency across service stations, ensuring that all systems are evaluated against the same high benchmarks. Moreover, while the document does not cover the air and vapour tightness testing methods for the systems, its emphasis on verification methods for vapour recovery represents a significant contribution to the overall goal of emission reduction. The details encapsulated in the document not only serve as a basis for technical assessments but also reinforce the importance of maintaining high operational standards in the fuel distribution sector. In summary, the EN 16321-2:2013 standard effectively outlines the essential test methods for the verification of petrol vapour recovery systems, establishing a robust framework that is crucial for environmental protection, regulatory compliance, and operational efficiency in service stations. Its implementation will undoubtedly support the transition towards more sustainable practices in the handling of petrol and contribute towards cleaner air in urban settings.

SIST EN 16321-2:2013 표준은 주유소에서의 차량 주유 시 발생하는 연료 증기 회수 시스템의 검증을 위한 시험 방법을 상세히 규명하고 있습니다. 이 표준은 주유소의 증기 회수 시스템(스테이지 II)에 대한 시험 방법을 명확히 하고 있어, 연료 증기 회수의 효율성을 검증하는 데 중대한 의미가 있습니다. 주요 강점으로는, 이 표준이 연료 증기 회수 시스템의 신뢰성 있는 검증을 위한 구체적인 절차를 제시한다는 점이 있습니다. 이를 통해 주유소 운영자는 환경 보호 및 법규 준수를 위한 필수 요건들을 충족시킬 수 있으며, 연료 증기의 누출을 최소화하여 대기 오염을 감소시킬 수 있습니다. 또한, 이 표준은 전 유럽에 걸쳐 통일된 기준을 제공함으로써, 다양한 주유소에서의 일관성을 보장합니다. 그러나 주의해야 할 점은 SIST EN 16321-2:2013이 주유소의 증기 회수 시스템의 공기 및 증기 밀폐성 시험 방법을 명시하지 않는다는 것입니다. 이는 특정 조건에서 추가적인 테스트가 필요할 수 있음을 나타내며, 운영자들에게는 이 부분에 대한 별도의 고려가 필요할 수 있습니다. 결론적으로, EN 16321-2:2013 표준은 주유소에서의 연료 증기 회수 시스템의 검증을 위한 확고한 기초를 제공하며, 환경적 책임을 다하는 데 중요한 역할을 할 수 있습니다. 이 표준은 효율적인 연료 증기 관리와 함께 지속 가능한 발전을 지원하는 데 필요한 필수적인 지침이 되고 있습니다.

La norme EN 16321-2:2013 se concentre sur les méthodes d'essai pour la vérification des systèmes de récupération de vapeur lors du ravitaillement des véhicules à moteur dans les stations-service. En tant que référence européenne, elle précise les conditions et les protocoles à suivre pour garantir l'efficacité de ces systèmes (Stage II) dans la réduction des émissions volatiles. Un des points forts de cette norme est sa capacité à standardiser les pratiques de vérification, ce qui permet d'assurer une harmonisation à travers l'Europe. Cela est particulièrement pertinent dans un contexte où les préoccupations environnementales et la réglementation exigeante concernant la qualité de l'air sont en constante augmentation. La norme utilise des méthodes de test rigoureuses qui permettent aux exploitants de stations-service de vérifier l'intégrité et le fonctionnement de leurs systèmes de récupération de vapeur, facilitant ainsi la réduction des impacts environnementaux liés aux émissions de carburant volatil. Il convient également de mentionner que la norme ne traite pas des méthodes d'essai liées à l'étanchéité des systèmes de récupération de vapeur, ce qui souligne son approche ciblée et précise. En se concentrant exclusivement sur les méthodes de vérification, cette norme offre une ressource essentielle pour les responsables de la conformité et les ingénieurs travaillant dans le secteur des services d'essence. En somme, la EN 16321-2:2013 représente une avancée significative dans l'efficacité des systèmes de protection de l'environnement en station-service et souligne l'engagement de l'Europe vers une meilleure gestion des émissions de carburant. Sa portée claire et ses méthodes éprouvées en font un outil fondamental pour le secteur, répondant à des besoins opérationnels spécifiques tout en assurant un haut niveau de conformité aux exigences environnementales.

標準文書SIST EN 16321-2:2013は、サービスステーションにおけるモーター車の給油時のペトロール蒸気回収に関連する試験方法を規定しています。この標準の主な範囲は、蒸気回収システムの検証方法に特化しており、第二段階のテスト方法を詳述しています。 この標準の強みは、サービスステーションにおける蒸気回収システムの効果的な検証を可能にする明確で体系的なアプローチを提供している点にあります。具体的には、試験方法は実践的であり、運用における実際の条件を考慮しているため、業界の基準に基づいた信頼性のある結果が得られます。 さらに、この標準は環境保護の観点からも重要です。燃料の揮発性成分の放出を抑制することで、地球環境への影響を軽減するための取り組みを強化します。このように、SIST EN 16321-2:2013は、自動車サービス業界において、有害物質の排出を管理するための必須のガイドラインとなっています。 ただし、注意すべき点として、蒸気回収システムの空気および蒸気の密封性試験については本標準で規定されていないため、他の関連標準との併用が求められます。これは、トータルなシステムの信頼性向上を目的とした追加の検証が必要であることを示唆しています。 以上より、SIST EN 16321-2:2013は蒸気回収システムの検証に関する重要な基準を提供し、環境を保護しつつ業界における安全性向上を図る上で非常に関連性の高い文書であると言えます。