1、BSI Standards PublicationBS EN 16321-1:2013Petrol vapour recovery duringrefuelling of motor vehicles atservice stationsPart 1: Test methods for the type approvalefficiency assessment of petrol vapourrecovery systemsBS EN 16321-1:2013 BRITISH STANDARDNational forewordThis British Standard is the UK i
2、mplementation of EN 16321-1:2013.The UK participation in its preparation was entrusted to TechnicalCommittee PVE/393/7, Stage II Vapour Recovery Systems at FillingStations.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purpo
3、rt to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 75980 2ICS 75.200Compliance with a British Standard cannot confer immunity fromlegal obligations.Thi
4、s British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2013.Amendments issued since publicationDate Text affectedBS EN 16321-1:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16321-1 September 2013 ICS 75.200 English Version Petrol
5、 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 Rcupration des vapeurs dessence lors du ravitaillement en carburant des vhicules moteur dans les stations-service - Partie 1:
6、Mthodes dessai pour lhomologation et lvaluation de lefficacit des systmes de rcupration des vapeurs Benzindampf-Rckfhrung whrend der Betankung von Kraftfahrzeugen an Tankstellen - Teil 1: Prfverfahren fr die Typzulassung der Effinzienzbewertung von Gasrckfhrungssystemen This European Standard was ap
7、proved 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
8、 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
9、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, Hun
10、gary, 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 COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CEN
11、ELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16321-1:2013: EBS EN 16321-1:2013EN 16321-1:2013 (E) 2 Contents Page Foreword 4 1 Scope 5 2 Normative references 5 3 Ter
12、ms and definitions .5 4 Requirements .8 4.1 General 8 4.2 Efficiency 8 4.3 Petrol vapour /petrol ratio .8 4.4 Proportionality .9 4.5 Correction factor . 10 4.6 Vapour processing unit 10 5 Measurement and test methods for the assessment of petrol vapour recovery systems at service stations . 11 5.1 G
13、eneral test conditions 11 5.2 Efficiency test 11 5.2.1 General . 11 5.2.2 Test tanks 12 5.2.3 Test procedure 13 5.2.4 Test refuelling . 14 5.2.5 Adsorber 14 5.2.6 Calculation of the efficiency 14 5.3 Petrol vapour/petrol ratio . 14 5.3.1 General . 14 5.3.2 Test procedure 15 5.4 Proportionality test
14、. 16 5.4.1 General . 16 5.4.2 Test procedure 16 5.5 Correction factor determination 17 5.5.1 General . 17 5.5.2 Test with petrol vapour 17 5.5.3 Test with air . 17 5.6 Retesting criteria for modifications 19 6 Automatic monitoring systems . 19 7 Environmental aspects 19 8 Certificate for vapour reco
15、very systems 19 9 Marking 19 Annex A (normative) List of representative tanks 20 Annex B (normative) Retesting criteria for modifications . 21 Annex C (normative) Certificate format . 22 Annex D (normative) Monitoring system . 23 D.1 General . 23 D.2 Requirements 23 BS EN 16321-1:2013EN 16321-1:2013
16、 (E) 3 D.3 Measurement and test methods 24 D.3.1 Test for pressure loss . 24 D.3.2 Test for detection of a vapour recovery efficiency error . 24 D.3.3 Test for an alarm when the monitor detects an error during a self-test 24 D.3.4 Test for de-activation of a delivery point 25 D.4 Example monitoring
17、system certificate 25 Annex E (informative) Identification of petrol vapour recovery systems . 26 Annex F (informative) Environmental aspects . 27 Bibliography 28 BS EN 16321-1:2013EN 16321-1:2013 (E) 4 Foreword This document (EN 16321-1:2013) has been prepared by Technical Committee CEN/TC 393 “Equ
18、ipment 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
19、 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 mandat
20、e 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
21、systems; Part 2: Test methods for verification of vapour recovery systems at service stations. WARNING Persons using this European Standard should be familiar with normal laboratory practice. This standard does not purport to address all of the safety problems, if any, associated with its use. It is
22、 the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this Europe
23、an 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, Slove
24、nia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 16321-1:2013EN 16321-1:2013 (E) 5 1 Scope This European Standard specifies the measurement and test methods for the efficiency assessment of petrol vapour recovery systems for service stations (Stage II). 2 Normative references Th
25、e 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 228:20
26、12, Automotive fuels Unleaded petrol Requirements and test methods 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 back pressure differential pressure relative to atmosphere caused by the flow resistance of the petrol vapour recovery return l
27、ine from the system to the petrol vapour receiving area 3.2 maximum back pressure differential pressure relative to atmosphere at the outlet of the vapour pump up to which the system operates properly 3.3 basic emission hydrocarbons (petrol vapour) that are emitted into the environment during refuel
28、ling of test tanks without an operating petrol vapour recovery system 3.4 gas volume meter device for continuous measurement of air or vapour volume Note 1 to entry: Bellows type gas volume meters are recommended. 3.5 boot measurement method measurement method whereby the hydrocarbon emissions from
29、the filler neck area of the test tanks that are not retrieved by the petrol vapour recovery system are collected in a collecting device (boot) 3.6 calibration factor of the gas volume meter specific factor of the gas volume meter used for the data processing when using an external display 3.7 certif
30、icate qualification document confirming that the petrol vapour recovery system meets the requirements of this standard BS EN 16321-1:2013EN 16321-1:2013 (E) 6 3.8 correction factor system dependent factor used to allow calibration and periodic checking of the vapour recovery system under simulated f
31、low conditions using air 3.9 simulated petrol flow method dry test method method for determining the petrol vapour/petrol ratio without any fuel flow 3.10 efficiency ratio between the average values of the hydrocarbon mass recovered to the petrol vapour receiving area and the basic emission 3.11 pet
32、rol dispenser metering pump or dispenser according to EN 13617-1 3.12 petrol meter measuring instrument to measure the petrol volume flow 3.13 hose assembly fuel hose complete with an internal vapour tubing or vapour hose and fitted with couplings SOURCE: EN 13483:2013, Clause 3 3.14 nozzle automati
33、c delivery nozzle which is a manually operated device that controls the flow of fuel during a dispensing operation and includes a spout and an automatic shut-off mechanism SOURCE: EN 13012:2012, 3.1 3.15 pulsing rate number of pulses generated from 1 l of petrol flow 3.16 proportionality linearity o
34、f the petrol vapour/petrol ratio at different petrol volume flow rates 3.17 residual emission hydrocarbons (petrol vapour) that are emitted to the environment during refuelling of test tanks with the petrol vapour recovery system operating 3.18 SHED chamber measuring facility for verification of the
35、 test equipment used in determining the basic and residual emission Note 1 to entry: SHED stands for Sealed Housing for Evaporative Determination. BS EN 16321-1:2013EN 16321-1:2013 (E) 7 3.19 test tank petrol tank and filler neck of a motor vehicle of the representative fleet of motor vehicles, fitt
36、ed with a plate allowing the interface of the test equipment to be positioned in a similar way as would be achieved with the motor vehicle body 3.20 petrol vapour/petrol ratio ratio of the recovered volume of petrol vapour/air mixture to the volume of petrol dispensed at the same time Note 1 to entr
37、y: Petrol vapour/petrol ratio expressed in percentage. 3.21 post processing unit PPU device for setting and control of the vapour recovery system to simulate petrol flow, to read data, to change settings, to calculate and to indicate results Note 1 to entry: A hand-held control unit is a post-proces
38、sing unit. 3.22 collecting device boot device to capture the hydrocarbon emissions from the filler neck of the motor vehicle or test tank 3.23 vapour processing unit unit to process petrol vapour captured during refuelling Note 1 to entry: The vapour processing unit may exhaust petrol vapour to atmo
39、sphere. 3.24 delivery point dispensing nozzle with associated vapour collection components 3.25 de-activation time time between the detection of a petrol vapour/petrol ratio error, self-diagnostic error or self-test error, and the delivery point being de-activated 3.26 wet test method method for det
40、ermining the petrol vapour/petrol ratio with fuel flow 3.27 air/petrol ratio ratio of the recovered volume of air to the volume of petrol dispensed at the same time Note 1 to entry: Air/petrol ratio expressed in percentage. 3.28 gas flow meter device for measurement of air or vapour flow rate BS EN
41、16321-1:2013EN 16321-1:2013 (E) 8 3.29 maximum petrol volume flow rate maximum petrol volume flow rate stated by the applicant of the petrol vapour recovery system Note 1 to entry: Maximum petrol volume flow rate expressed in litre per minute. 4 Requirements 4.1 General The maximum back pressure sta
42、ted by the applicant of the petrol vapour recovery system shall be 1 kPa. The test equipment placed in the return-line shall not add more back pressure than 1 kPa. An overview of the performance characteristics and the appropriate tests is given in Table 1. Table 1 Performance characteristics Perfor
43、mance characteristic Requirement Subclause Criterion Test according to: efficiency 85 % 4.2 5.2 petrol vapour/petrol ratio individual measurement: 95 % x 105 % average value: 98 % y 102 % 4.3 5.3 proportionality 95 % z 105 % 4.4.2 4.4.3 maximum petrol flow rate stated by the applicant petrol volume
44、flow rate (38,0 1,0) lmin15.4 z 5 % 4.4.4 (28,5 1,0) lmin15.4 z 10 % 4.4.5 (19,0 1,0) lmin15.4 95 % z 105 % 4.4.6 (38,0 1,0) lmin15.4 z 10 % 4.4.7 (19,0 1,0) lmin15.4 Ikb kaI 0,03 4.5.7 petrol volume flow rate (38,0 1,0) l min1, maximum back pressure and back pressure 115 %, on 10 consecutive valid
45、refuelling operations. The applicant shall provide facilities to simulate or induce errors. These shall include simulating or inducing a vapour recovery efficiency error, and simulating or inducing self-test errors. Self-test errors may include flow meter disconnection or low battery. A valid refuel
46、ling operation is achieved when the vapour flow rate reaches 25 lmin-1during refuelling, and the refuelling duration is 20 s before petrol flow completion. Petrol flow completion has occurred at a time 60 s after petrol flow is interrupted. D.2 Requirements Where the monitoring system is intended fo
47、r use with petrol vapour recovery systems with a petrol volume flow rate of greater than 38 lmin-1,the maximum vapour volume flow rate of the monitoring system shall be greater than (maximum petrol volume flow rate +7 lmin-1). Where the applicant of the monitoring system does not define a maximum va
48、pour volume flow rate for the monitoring system, this flow rate shall be 45 lmin-1. The accuracy of the flow sensor within the monitoring system shall be tested by a gas meter calibration body using a reference meter with an accuracy of better than 0,5 %. The flow sensor shall be tested at an ambien
49、t temperature of (20 5) C with air and with butane. Tests shall be performed at flow rates of 25 lmin-1, 30 lmin-1, 35 lmin-1, 40 lmin-1and the maximum vapour volume flow rate for the monitoring system. All individual test results shall be recorded. No result shall deviate by 10 % from the reference meter. The pressure loss created by installing the monitoring system shall be tested in accordance with D.3.1. The difference between the inlet and outlet pressure shall be 20
