1、December 2013 Translation by DIN-Sprachendienst.English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).I
2、CS 75.200!%*zD“2078733www.din.deDDIN EN 16321-2Petrol vapour recovery during refuelling of motor vehicles at servicestations Part 2: Test methods for verification of vapour recovery systems atservice stations;English version EN 16321-2:2013,English translation of DIN EN 16321-2:2013-12Benzindampf-Rc
3、kfhrung whrend der Betankung von Kraftfahrzeugen an Tankstellen Teil 2: Prfverfahren fr die Kontrolle von Gasrckfhrungssystemen an Tankstellen;Englische Fassung EN 16321-2:2013,Englische bersetzung von DIN EN 16321-2:2013-12Rcupration des vapeurs dessence lors du ravitaillement en carburant des vhic
4、ules moteur dans les stations-service Partie 2: Mthodes dessai pour la vrification des systmes de rcupration des vapeursdans les stations-service;Version anglaise EN 16321-2:2013,Traduction anglaise de DIN EN 16321-2:2013-12www.beuth.deDocument comprises pagesIn case of doubt, the German-language or
5、iginal shall be considered authoritative.19 12.13DIN EN 16321-2:2013-12 2 A comma is used as the decimal marker. National foreword This document (EN 16321-2:2013) has been prepared by Technical Committee CEN/TC 393 “Equipment for storage tanks and for filling stations” (Secretariat: DIN, Germany), W
6、orking Group WG 7 “Stage II vapour recovery systems at filling stations” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Tankanlagen (Tank Installations Standards Committee), Working Committee NA 104-02-11 AA Gasrckfhrung an Tankstellen. I
7、n Germany, the designation Phase Ib (stage Ib) in Subclause 5.6.1 corresponds to Phase I (stage I). EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16321-2 September 2013 ICS 75.200 English Version Petrol vapour recovery during refuelling of motor vehicles at service stations - Part 2: Test met
8、hods for verification of vapour recovery systems at service stations Rcupration des vapeurs dessence lors du ravitaillement en carburant des vhicules moteur dans les stations-service - Partie 2: Mthodes dessai pour la vrification des systmes de rcupration des vapeurs dans les stations-service Benzin
9、dampf-Rckfhrung whrend der Betankung von Kraftfahrzeugen an Tankstellen - Teil 2: Prfverfahren fr die Kontrolle von Gasrckfhrungssystemen an TankstellenThis European Standard was approved by CEN on 26 July 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulat
10、e 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 Stan
11、dard 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 nat
12、ional 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, Sl
13、ovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any me
14、ans reserved worldwide for CEN national Members. Ref. No. EN 16321-2:2013: EEN 16321-2:2013 (E) 2 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 Se
15、quence 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 r
16、eal 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 t
17、he verification of vapour recovery systems 14 Annex C (informative) Environmental aspects 17 DIN EN 16321-2:2013-12 EN 16321-2:2013 (E) 3 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 secretari
18、at 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
19、 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 T
20、rade 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 recover
21、y 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
22、health practices and to ensure compliance with any national regulatory conditions. The application of this standard is only valid on installations that comply with manufacturers requirements. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following cou
23、ntries 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, P
24、oland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 16321-2:2013-12 EN 16321-2:2013 (E) 4 1 Scope This European Standard specifies the test methods for verification of vapour recovery systems at service stations (Stage II). This European St
25、andard 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 r
26、eferences, 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 a
27、ssessment 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
28、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 o
29、ut 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 technic
30、al 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 te
31、sts, the instructions of the manufacturer of the vapour recovery system shall be followed. DIN EN 16321-2:2013-12 EN 16321-2:2013 (E) 5 Consult manufacturers instructions for the location of the permanently fixed label, in accordance with EN 16321-1, which contains the setting data relevant for the
32、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 temper
33、ature 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 ex
34、cept 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 sha
35、ll 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 fail
36、s 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 t
37、est. 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. DIN EN 16321-2:2013-12 EN 16321-2:2013 (E) 6 Figure 1 Flow chart of tests 5.3 Preparation For v
38、apour recovery measurements a measuring adapter shall be mounted over the nozzle onto the vapour spout and connected with a hose to a gas volume meter (see Figure 2 to Figure 4). Air tightness between the nozzle and the gas volume meter shall be ensured. To ensure that the petrol vapour/petrol ratio
39、 measurement is not adversely affected by the measurement procedure the hose connecting the measuring adapter to the gas volume meter shall: not exceed 3 m in total length; be protected against kinking; have smooth inner walls; have a minimum internal diameter of 10 mm. The gas volume meter for dire
40、ct determination of the vapour or air volume shall cover a working range of 10 lmin-1to 60 lmin-1and shall have an accuracy of maximum 2 %. The signal output of the gas volume meter shall be connected to the post processing unit (PPU) or equivalent equipment. The calibration factor of the gas volume
41、 meter shall be stored in the memory of the PPU. 5.4 Measurement principle with simulated petrol flow (dry test method) 5.4.1 Test procedure The test may be performed on the basis of total volumes, record aVand KV ,or volume flow, record aQ and KQ according to 5.4.2. DIN EN 16321-2:2013-12 EN 16321-
42、2:2013 (E) 7 The vapour recovery system, shown schematically in Figure 2, shall be tested at simulated petrol volume flow rate of (38,0 1,0) l min-1. The simulated flow shall be generated by a PPU or other methods as described by the supplier. During simulated petrol flow measurement, air is drawn t
43、hrough the gas volume meter (10) and the vapour recovery system. The different properties between air and petrol vapour/air mixture are correlated using the correction factor (k), which shall be given in the certificate of the vapour recovery system. Validation of entered setting into the PPU shall
44、start the petrol flow simulation and the vapour recovery system to provide a corresponding air flow. The measurement time shall be not less than 60 s and up to a maximum of 90 s. The accuracy of the time measurement device shall be at least 0,2 s over 60 s. The result may be read out directly on the
45、 PPU or may be evaluated according to 5.4.2. Where no PPU is used the dry test shall be performed and evaluated according to 5.4.2. Key part of the dispenser 1 underground storage tank 6 nozzle part of the dispenser 2 vapour recovery pump part of the dispenser 7 vapour recovery control board part of
46、 the dispenser 3 proportional valve part of the dispenser 8 signal line part of the dispenser 4 splitter valve part of the dispenser 5 hose part of the dispenser part of the measuring equipment 9 measuring adapter 13 interface cable 10 gas volume meter 14 temperature measuring device 11 signal line
47、15 air inlet 12 post processing unit Figure 2 Schematic representation of a measuring set-up (example) 5.4.2 Evaluation The petrol vapour/petrol ratio shall be calculated using Formula (1) or Formula (2). Because ambient air is sucked in during the dry measurement, the calculated air volumetric flow
48、 shall be divided by the correction factor as well. DIN EN 16321-2:2013-12 EN 16321-2:2013 (E) 8 KVkVRa= (1) where R is the petrol vapour/petrol ratio; aV is the measured air volume, in litres; VKis the simulated volume, in litres; k is the correction factor (as specified in the certificate). KQkQRa
49、= (2) where R is the petrol vapour/petrol ratio; aQ is the calculated air volume flow during the measurement (average value), in lmin-1; KQ is the simulated volume flow, in lmin-1; k is the correction factor (as specified in the certificate). 5.5 Measurement principle with real petrol flow (wet test method A) 5.5.1 Test procedure The vapour recovery system, shown schematically in Figure 3, shall be tested with the nozzle fully open. The uninterrupted petrol volume flow rate shall be betw
