SIST EN 16922:2018+A1:2019
(Main)Railway applications - Ground based services - Vehicle waste water discharge equipment
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. 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.
Bahnanwendungen - Versorgungsdienste - Fahrzeugabwasserentsorgungseinrichtungen
Applications ferroviaires - Services au sol - Equipement de vidange des eaux usées des véhicules
Železniške naprave - Talna oskrba - Oprema vozil za odvoz odpadnih voda (vključno z dopolnilom A1)
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. Navedene so tudi posebne zahteve za vozila in infrastrukturo.
Evropski standard zajema nepremično in premično infrastrukturno opremo, ki se uporablja za praznjenje rezervoarjev za hrambo, vendar ne zajema opreme, nameščene na železniška vozila, pri katerih ni fiksnih povezav med vozilom in infrastrukturo.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 16922:2018+A1:2019
01-september-2019
Železniške naprave - Talna oskrba - Oprema vozil za odvoz odpadnih voda
(vključno z dopolnilom A1)
Railway applications - Ground based services - Vehicle waste water discharge
equipment
Bahnanwendungen - Versorgungsdienste - Fahrzeugabwasserentsorgungseinrichtungen
Applications ferroviaires - Services au sol - Equipement de vidange des eaux usées des
véhicules
Ta slovenski standard je istoveten z: EN 16922:2017+A1:2019
ICS:
13.060.30 Odpadna voda Sewage water
45.060.20 Železniški vagoni Trailing stock
SIST EN 16922:2018+A1:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 16922:2018+A1:2019
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SIST EN 16922:2018+A1:2019
EN 16922:2017+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2019
EUROPÄISCHE NORM
ICS 45.060.20
English Version
Railway applications - Ground based services - Vehicle
waste water discharge equipment
Applications ferroviaires - Services au sol - Equipement Bahnanwendungen - Versorgungsdienste -
de vidange des eaux usées des véhicules Fahrzeugabwasserentsorgungseinrichtungen
This European Standard was approved by CEN on 28 August 2017 and includes Amendment 1 approved by CEN on 16 April
2019.
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 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 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16922:2017+A1:2019 E
worldwide for CEN national Members.
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SIST EN 16922:2018+A1:2019
EN 16922:2017+A1:2019 (E)
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
2
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SIST EN 16922:2018+A1:2019
EN 16922:2017+A1:2019 (E)
European foreword
This document (EN 16922:2017+A1:2019) 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 December 2019, and conflicting national standards
shall be withdrawn at the latest by December 2019.
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 includes Amendment 1 approved by CEN on 16 April 2019.
This document supersedes !EN 16922:2017".
The start and finish of text introduced or altered by amendment is indicated in the text by tags !".
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
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SIST EN 16922:2018+A1:2019
EN 16922:2017+A1:2019 (E)
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
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EN 16922:2017+A1:2019 (E)
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 −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 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 Wording of label Wording of label Wording of
colour beside 3” beside 1” label beside
connection connection high pressure
The size of
water
background colour
connection
shall be at least
60 mm x 60 mm:
Compact system Green Toilet discharge Flushing pipe Not applicable
On line vacuum Green Toilet discharge Flushing pipe Not applicable
Permanent Red Toilet discharge, Flushing pipe Not applicable
vacuum ensure ventilation
is open
Chemical Blue Chemical toilet Flushing and Not applicable
discharge chemical addition
On board waste Yellow On board waste On board waste On board
treatment (e.g. treatment toilet treatment water waste
bioreactor) discharge and inlet and suction treatment high
cleaning pressure water
Catering area sink Grey Catering area sink Not applicable Not applicable
waste retention waste
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EN 16922:2017+A1:2019 (E)
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.
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EN 16922:2017+A1:2019 (E)
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)
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EN 16922:2017+A1:2019 (E)
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
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EN 16922:2017+A1:2019 (E)
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.
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EN 16922:2017+A1:2019 (E)
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 −0,3 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 −20 °C;
— the toilet system shall function normally after the heating system is turned off with the vehicle
internal temperature of 20 °C and external temperature of −10 °C for 12 h, and then the vehicle
in
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