1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Railway applications - Ground based services - Vehicle waste water discharge equipmentBS EN 16922:2017National forewordThis British Standard is the UK implementation of EN 16922:2017. The UK participation in its prepara
2、tion was entrusted to Technical Committee RAE/1, Railway Applications.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct appli
3、cation. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 87464 2ICS 45.060.20Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Comm
4、ittee on 28 February 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 16922:2017EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 16922October 2017ICS 45.060.20EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNG
5、CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN Ref. No. EN 16922:2017: EAll rights of exploitation in any form and by any means reserved worldwide for CEN national MembersRailway applications - Ground based services - Vehicle waste water discharge equipmentApplications fer
6、roviaires - Services au sol - Equipement de vidange des eaux uses des vhiculesBahnanwendungen - Versorgungsdienste - FahrzeugabwasserentsorgungseinrichtungenThis European Standard was approved by CEN on 28 August 2017.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which st
7、ipulate 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
8、 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
9、 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
10、, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.English VersionEN 16922:2017 (E)European forewordThis document (EN 16922:2017) has been prepared by Technical Committee CEN/TC 256 “Railway applications”, the secretariat of which is held by DIN.This European Standar
11、d shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2018, and conflicting national standards shall be withdrawn at the latest by April 2018.Attention is drawn to the possibility that some of the elements of this doc
12、ument may be the subject of patent rights. CEN 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, and supports essential requirements of EU Direct
13、ive 2008/57/EC.For relationship with EU Directive 2008/57/EC, see informative Annex ZA, which is an integral part of this document.According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria
14、, 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, Serbia, Slovakia, Slovenia, Spain,
15、Sweden, Switzerland, Turkey and the United Kingdom.2BS EN 16922:2017EN 16922:2017 (E)European foreword 2European foreword 41 Scope . 52 Normative references 53 Terms and definitions . 54 General 64.1 Description of vacuum 64.2 Description of controlled emission toilet systems . 65 Requirements 65.1
16、General requirements . 65.2 Vehicle requirements . 75.2.1 Connections 75.2.2 System design 115.2.3 Temperature of operation . 115.2.4 Pipework 125.2.5 Retention tank .125.2.6 Venting system 155.2.7 Sink waste . 155.2.8 Test for leakage 155.3 Infrastructure requirements 155.3.1 General. 155.3.2 Syste
17、m design 155.3.3 Connection . 165.3.4 Flushing 165.3.5 Breakaway coupling .165.3.6 Pipework 165.3.7 Chemical storage .165.4 Information and instruction . 165.4.1 For railway vehicles 165.4.2 For fixed installations (this includes mobile ground based installations) 17Annex A (informative) Generic typ
18、es of toilet retention systems .18Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC aimed to be covered 22Bibliography .243Contents PageBS EN 16922:2017EN 16922:2017 (E)European forewordThis document (EN 16922:2017) has been
19、prepared by Technical Committee CEN/TC 256 “Railway applications”, 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 April 2018, and conflicting national stan
20、dards shall be withdrawn at the latest by April 2018.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 has been prepared under a mandate g
21、iven to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 2008/57/EC.For relationship with EU Directive 2008/57/EC, see informative Annex ZA, which is an integral part of this document.According to the CEN-CENELEC Internal Reg
22、ulations, 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland,
23、Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.4BS EN 16922:2017EN 16922:2017 (E)1 ScopeThis European Standard specifies the interface requirements for controlled emiss
24、ion toilet equipment on railway vehicles and the infrastructure, including catering area sink waste retention tanks. Vehicle and infrastructure specific requirements are also given.The European Standard includes fixed and portable infrastructure equipment used to empty retention tanks, but excludes
25、equipment fitted to railway vehicles where no fixed connections are used between vehicle and infrastructure.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the editio
26、n cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.EN 1717, Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflowEN 12663-1, Railway applications
27、 Structural requirements of railway vehicle bodies Part 1: Locomotives and passenger rolling stock (and alternative method for freight wagons)EN 15877-2:2013, Railway applications Markings of railway vehicles Part 2: External markings on coaches, motive power units, locomotives and on track machines
28、EN 16362:2013, Railway applications Ground based services Water restocking equipmentEN 45545-2, Railway applications Fire protection on railway vehicles Part 2: Requirements for fire behaviour of materials and components3 Terms and definitionsFor the purposes of this document, the following terms an
29、d definitions apply.3.1railway infrastructureall installations required for the running of railway vehicles including operating and support facilitiesEXAMPLE Tracks, crossings, catenaries, signals, maintenance depots.3.2grey waterwaste water from hand wash and galley sinks, usually contaminated with
30、 soap, germicides, residues of food, drink and dish water3.3servicing pointlocation where maintenance, refuelling and cleaning is carried out3.4controlled emission toilettoilet system where the toilet waste is retained on the vehicle and emptied at prescribed locations, including on board waste trea
31、tment systems which are permitted to discharge some wastes at various locations5BS EN 16922:2017EN 16922:2017 (E)4 General4.1 Description of vacuumVacuum can be expressed in different manners. Absolute vacuum is 0 bar and atmospheric pressure is nominally 1 bar (although this varies). When a vacuum
32、pump evacuates 0,2 bar from a tank the remaining pressure within the tank is 0,8 bar (if the atmospheric pressure is 1 bar), but this can be expressed in a variety of ways. Therefore to avoid doubt, because the atmospheric pressure varies, throughout this standard vacuum is expressed as a negative n
33、umber of bars below atmosphere (i.e. in the above example this is expressed within this standard as 0,2 bar).Positive pressure is expressed as bars above atmosphere, i.e. in this standard an absolute pressure of 3 bar is shown as +2 bar.4.2 Description of controlled emission toilet systemsThere are
34、five generic types of controlled emission toilets fitted to railway vehicles considered in this standard, shown diagrammatically in Annex A.5 Requirements5.1 General requirementsEach vehicle and servicing point shall be clearly marked with the type of system that is fitted, or intended to be used fo
35、r. Adjacent to the connection on the vehicle and infrastructure the background, or if there is no background, an area beside the connection with a minimum dimension 60 mm x 60 mm, shall be coloured as shown in Table 1 and marked with the wording shown in Table 1 in the native language of the servici
36、ng point or the home depot of the vehicle and also at least in English. The labels shall be in a contrasting colour to the background colour.Table 1 Identification of toilet systemType of system Background colourThe size of back-ground colour shall be at least 60 mm x 60 mm:Wording of label be-side
37、3” connectionWording of label beside 1” connectionWording of label beside high pressure water connectionCompact system Green Toilet discharge Flushing pipe Not applicableOn line vacuum Green Toilet discharge Flushing pipe Not applicablePermanent vacuum Red Toilet discharge, ensure ventilation is ope
38、nFlushing pipe Not applicableChemical Blue Chemical toilet dis-chargeFlushing and chemi-cal additionNot applicableOn board waste treatment (e.g. biore-actor)Yellow On board waste treat-ment toilet discharge and cleaningOn board waste treat-ment water inlet and suctionOn board waste treatment high pr
39、essure waterCatering area sink waste retentionGrey Catering area sink wasteNot applicable Not applicableThe position on a vehicle of the background colour and labels described in Table 1 is shown diagrammatically in Figure 1.6 BS EN 16922:2017EN 16922:2017 (E)Key1 background colour of type of system
40、 (as shown in Table 1)2 label beside 3” connection3 label beside 1” connectionFigure 1 Identification of connections on vehicleOn the label shown in Figure 1, key 2, the volume of the retention tank in litres shall be indicated.5.2 Vehicle requirements5.2.1 ConnectionsExcept for vehicles fitted with
41、 on board waste treatment system each vehicle with toilet waste or catering area sink waste retention tank shall be fitted with a connection as shown in Figure 2 on each side of vehicle. Vehicles fitted with on board waste treatment system are permitted to have the 3” connection on one side, but it
42、is preferable to have on both sides.For toilet waste retention tanks each such vehicle, excluding locomotives, shall also be fitted with a flushing connection as shown in Figure 3. On vehicles fitted with a chemical toilet system (Annex A, Figure A.4) the flushing connection shall be fitted on each
43、side of the vehicle, for all other toilet systems the flushing connection shall be as a minimum of one side of the vehicle.As design guidance it is preferable to have the flushing connection on both sides. It is also preferable to fit flushing connections for catering area sink waste tanks. Provisio
44、n of the flushing connection reduces maintenance costs and increases efficiency of cleaning operations of the tank.7BS EN 16922:2017EN 16922:2017 (E)Dimensions in millimetresNOTE 1 General tolerances 0,1.NOTE 2 Material: stainless steel.Figure 2 3” connection (inner part)Dimensions in millimetresNOT
45、E 1 General tolerances 0,1.NOTE 2 Material: stainless steel.Figure 3 1” connection (inner part)The connections on the vehicle shall be between 500 mm and 1 500 mm above rail level, measured to the centre of the connection. They shall not be recessed further than 100 mm deeper than the 8 BS EN 16922:
46、2017EN 16922:2017 (E)vehicle bodyline. Where the connections are set back from the vehicle bodyline contained within a box structure, the floor of the box shall be sloping outwards so that water cannot be retained in the enclosed box and always drains to the outside of the vehicle. The connections s
47、hall have space around them as detailed in Figure 4 and Figure 5 to allow connection of the pipe this does not have to be all the way around the connection but shall be for the direction the pipe connection rotates (i.e. the space around connection does not have to be circular but is permitted to be
48、 rectangular or oval). When a manual valve is included in the connection area, the space around the connection shall permit the opening and closing operations.Dimensions in millimetresa) Side view b) Plan viewFigure 4 Space around 3” connection9BS EN 16922:2017EN 16922:2017 (E)Dimensions in millimet
49、resa) Side view b) Plan viewFigure 5 Space around 1” connectionThe 3” connection and 1” connection shall be separated from water filling connection, described in EN 16362, to avoid potential contamination. They shall be a minimum 500 mm apart, or separated by a mechanical barrier. The mechanical barrier shall be impervious to stop spillage from the 3” connection contaminating the water filling connection point. Where the 3” connection and water filling connection are in the same area of the vehicle (whether separated by 500 mm or a mechanical barr
