EN 16922:2017+A1:2019

SLOVENSKI STANDARD
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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.

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

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.
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
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 si
...