EN 16922:2017

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
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16922
October
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
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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

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

« 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

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

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

a) Side view b) Plan view Figure 4 — Space around 3” connection SIST EN 16922:2018

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

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 5.2.3.1 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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