Railway applications - Ground based services - Vehicle waste water discharge equipment

This European Standard specifies the interface requirements for controlled emission toilet equipment on railway vehicles and the infrastructure, including catering area sink waste retention tanks.

Bahnanwendungen - Versorgungsdienste - Toilettenentsorgungseinrichtungen

Diese Europäische Norm legt die Schnittstellenanforderungen für geschlossene Toilettensysteme (en: controlled emission toilet equipment) auf Schienenfahrzeugen sowie für die Infrastruktur einschließlich der Sammeltanks für das Schmutzwasser aus den Spülen des Verpflegungsbereichs fest. Fahrzeug- und infrastrukturspezifische Anforderungen werden ebenfalls behandelt.
Diese Europäische Norm umfasst die ortsfeste und ortsveränderliche Infrastruktureinrichtung zum Leeren der Sammeltanks, jedoch nicht die an Schienenfahrzeugen montierten ortsveränderlichen Betriebsmittel, bei denen zwischen Fahrzeug und Infrastruktur keine ortsfesten Anschlüsse genutzt werden.

Applications ferroviaiers - Stations service - Equipement de vidange des reservoirs d'eaux usees

La présente Norme européenne spécifie les exigences d'interface des systèmes de toilettes étanches sur les véhicules ferroviaires avec l'infrastructure. Elle inclut les réservoirs de rétention des eaux usées provenant des éviers des espaces de restauration. Elle fournit également des exigences spécifiques aux véhicules et à l'infrastructure.
La présente Norme européenne couvre les équipements d'infrastructure fixes et mobiles utilisés pour la vidange des réservoirs de rétention, mais ne couvre pas les équipements portatifs montés sur les véhicules ferroviaires, dépourvus de raccords fixes entre le véhicule et l'infrastructure.

Železniške naprave - Talna oskrba - Oprema vozil za odvoz odpadnih voda

Ta evropski standard opredeljuje zahteve za vmesnik za straniščno opremo za nadzorovano odplakovanje na železniških vozilih in infrastrukturi, vključno z zbiralniki odpadkov iz odtokov v gostinskih prostorih.

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Technical Committee
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9900 - Withdrawal (Adopted Project)
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EN 16922:2018
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Železniške naprave - Talna oskrba - Oprema vozil za odvoz odpadnih vodaBahnanwendungen - Versorgungsdienste - ToilettenentsorgungseinrichtungenApplications ferroviaiers - Stations service - Equipement de vidange des reservoirs d'eaux useesRailway applications - Ground based services - Vehicle waste water discharge equipment45.060.20Železniški vagoniTrailing stock13.060.30Odpadna vodaSewage waterICS:Ta slovenski standard je istoveten z:EN 16922:2017SIST EN 16922:2018en,fr,de01-januar-2018SIST EN 16922:2018SLOVENSKI

SIST EN 16922:2018

EN 16922
t r s y ICS
v wä r x rä t r English Version
Railway applications æ Ground based services æ Vehicle waste water discharge equipment Applications ferroviaires æ Services au sol æ Equipement de vidange des eaux usées des véhicules
Bahnanwendungen æ Versorgungsdienste æ Fahrzeugabwasserentsorgungseinrichtungen This European Standard was approved by CEN on
t z August
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x { t tã t r s y ESIST EN 16922:2018

EN 16922:2017 (E) 2 Contents Page European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions . 4 4 General . 5 4.1 Description of vacuum . 5 4.2 Description of controlled emission toilet systems . 5 5 Requirements . 5 5.1 General requirements . 5 5.2 Vehicle requirements . 6 5.2.1 Connections . 6 5.2.2 System design . 10 5.2.3 Temperature of operation . 10 5.2.4 Pipework . 11 5.2.5 Retention tank . 12 5.2.6 Venting system . 14 5.2.7 Sink waste . 14 5.2.8 Test for leakage . 14 5.3 Infrastructure
requirements . 14 5.3.1 General . 14 5.3.2 System design . 14 5.3.3 Connection . 15 5.3.4 Flushing . 15 5.3.5 Breakaway coupling . 15 5.3.6 Pipework . 15 5.3.7 Chemical storage . 15 5.4 Information and instruction . 15 5.4.1 For railway vehicles . 15 5.4.2 For fixed installations (this includes mobile ground based installations) . 16 Annex A (informative)
Generic types of toilet retention systems . 17 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC aimed to be covered . 22 Bibliography . 24 SIST EN 16922:2018

EN 16922:2017 (E) 3 European foreword This 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 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 standards 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 given 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 Regulations, 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, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 16922:2018

EN 16922:2017 (E) 4 1 Scope This European Standard specifies the interface requirements for controlled emission 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 equipment fitted to railway vehicles where no fixed connections are used between vehicle and infrastructure. 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 1717, Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow EN 12663-1, Railway applications - 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 EN 16362:2013, Railway applications - Ground based services - Water restocking equipment EN 45545-2, Railway applications - Fire protection on railway vehicles - Part 2: Requirements for fire behaviour of materials and components 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 railway infrastructure all installations required for the running of railway vehicles including operating and support facilities EXAMPLE Tracks, crossings, catenaries, signals, maintenance depots. 3.2 grey water waste water from hand wash and galley sinks, usually contaminated with soap, germicides, residues of food, drink and dish water 3.3 servicing point location where maintenance, refuelling and cleaning is carried out 3.4 controlled emission toilet toilet system where the toilet waste is retained on the vehicle and emptied at prescribed locations, including on board waste treatment systems which are permitted to discharge some wastes at various locations SIST EN 16922:2018

EN 16922:2017 (E) 5 4 General 4.1 Description of vacuum Vacuum can be expressed in different manners. Absolute vacuum is 0 bar and atmospheric pressure is nominally 1 bar (although this varies). When a vacuum 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 number of bars below atmosphere (i.e. in the above example this is expressed within this standard as
« rá t 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 systems There are five generic types of controlled emission toilets fitted to railway vehicles considered in this standard, shown diagrammatically in Annex A. 5 Requirements 5.1 General requirements Each vehicle and servicing point shall be clearly marked with the type of system that is fitted, or intended to be used for. 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 servicing 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 system Type of system Background colour The size of background colour shall be at least 60 mm x 60 mm: Wording of label beside 3” connection Wording of label beside 1” connection Wording of label beside high pressure water connection Compact system Green Toilet discharge Flushing pipe Not applicable On line vacuum Green Toilet discharge Flushing pipe Not applicable Permanent vacuum Red Toilet discharge, ensure ventilation is open Flushing pipe Not applicable Chemical Blue Chemical toilet discharge Flushing and chemical addition Not applicable On board waste treatment (e.g. bioreactor) Yellow On board waste treatment toilet discharge and cleaning On board waste treatment water inlet and suction On board waste treatment high pressure water Catering area sink waste retention Grey Catering area sink waste Not applicable Not applicable SIST EN 16922:2018

EN 16922:2017 (E) 6 The position on a vehicle of the background colour and labels described in Table 1 is shown diagrammatically in Figure 1.
Key 1 background colour of type of system (as shown in Table 1) 2 label beside 3” connection 3 label beside 1” connection Figure 1 — Identification of connections on vehicle On the label shown in Figure 1, key 2, the volume of the retention tank in litres shall be indicated. 5.2 Vehicle requirements 5.2.1 Connections Except for vehicles fitted with 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 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 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. Provision of the flushing connection reduces maintenance costs and increases efficiency of cleaning operations of the tank. SIST EN 16922:2018

EN 16922:2017 (E) 7 Dimensions in millimetres
NOTE 1 General tolerances ± 0,1. NOTE 2 Material: stainless steel. Figure 2 — 3” connection (inner part) Dimensions in millimetres
NOTE 1 General tolerances ± 0,1. NOTE 2 Material: stainless steel. Figure 3 — 1” connection (inner part) SIST EN 16922:2018

EN 16922:2017 (E) 8 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 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 shall 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 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 millimetres
a) Side view b) Plan view Figure 4 — Space around 3” connection SIST EN 16922:2018

EN 16922:2017 (E) 9 Dimensions in millimetres
a) Side view b) Plan view Figure 5 — Space around 1” connection The 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 barrier) the 3” connection shall always be lower, as shown in Figure 6. Where a mechanical barrier is fitted between 3” connection and water filling connection it shall include a cover flap that opens between the connections. In addition to the background colour and label detailed in 5.1, the connections shall be marked as shown in EN 15877-2:2013, 4.5.16, Figure 50. SIST EN 16922:2018

EN 16922:2017 (E) 10
Key 1 3” connection 2 water filling connection 3 difference in height – minimum 50 mm Figure 6 — Difference in height of connections on bodyside 5.2.2 System design The toilet system is permitted to be of any design, the common generic designs are shown in Annex A. The amount of fluid used to flush shall be sufficient to reliably clean the toilet bowl. As design guidance it is normal for 0,4 l per use to be considered as a minimum, and 0,5 l as an aspirational norm to flush the toilet bowl. Lesser volumes are acceptable for urinal type fittings. The design of toilet system shall permit the use of the toilet even when the train is stationary and when within a station area. As design guidance it is normal for retention tank systems to enable the use in stations, but consideration should be given to the on board waste treatment type system where it is normal to prevent waste water discharge when the train is not moving. The design of toilet system shall permit the emptying of the retention tank(s) using a minimum vacuum of
« rá u bar at the 3” connection. The system shall be capable to withstand a maximum vacuum of
«0,8 bar applied at the 3” connection. 5.2.3 Temperature of operation Standard temperature range The toilet system shall be designed and insulated such that: — with the vehicle heating system operational the toilet system shall function without perturbation at external temperature of
« t r °C; — the toilet system shall function normally after the heating system is turned off with the vehicle internal temperature of 20
¹C and external temperature of
« s r °C for 12 h, and then the vehicle internal temperature returned to 20 °C. SIST EN 16922:2

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