SIST EN 17863:2023

SLOVENSKI STANDARD
01-december-2023
Železniške naprave - Talna oskrba - Oprema za higieno potniških vagonov
Railway applications - Ground based services - Coach hygiene requirements
Bahnanwendungen - Versorgungsdienste - Hygieneanforderungen des
Personenverkehrs
Applications ferroviaires - Stations service - Exigences d’hygiène des matériels roulants
destinés au transport de passagers
Ta slovenski standard je istoveten z: EN 17863:2023
ICS:
45.060.20 Železniški vagoni Trailing stock
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 17863
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2023
EUROPÄISCHE NORM
ICS 45.060.20
English Version
Railway applications - Ground based services - Coach
hygiene requirements
Applications ferroviaires - Stations service - Exigences Bahnanwendungen - Versorgungsdienste -
d'hygiène des matériels roulants destinés au transport Hygieneanforderungen des Personenverkehrs
de passagers
This European Standard was approved by CEN on 28 August 2023.

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, Türkiye 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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17863:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Water equipment . 6
4.1 Water supply and storage . 6
4.2 Hand wash basin . 8
4.3 Shower . 11
4.4 Waste water (from sink and shower) . 11
5 Toilet . 12
5.1 Provision of toilet . 12
5.2 Universal toilet . 16
5.3 All toilets . 16
6 On board staff facilities . 25
7 Maintenance . 25
7.1 Design . 25
7.2 Instructions . 26
7.3 Cleaning of water system, sinks and showers . 27
7.4 Cleaning of toilet bowls. 27
7.5 Cleaning of toilet cubicles and system . 28
7.6 Cleaning products . 28
Annex A (informative) Pictograms . 29
Annex B (informative) Cleaning chemicals . 34
Bibliography . 35

European foreword
This document (EN 17863:2023) 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 2024 and conflicting national standards shall be
withdrawn at the latest by April 2024.
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.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
1 Scope
This document specifies the requirements for hygiene and cleanliness on railway vehicles and where
appropriate the necessary interfacing infrastructure equipment.
The areas specifically concerned on the railway vehicle include toilets, toilet doors, hand wash facilities,
baby changing facilities, feminine hygiene articles management and fresh water supply. In the catering
areas for water supply and disposal systems only.
This document also includes extensive guidance and best practice to assist in the design, manufacture,
operation and maintenance of railway vehicle hygiene equipment.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 33:2019, WC pans and WC suites - Connecting dimensions
EN 547-3:1996+A1:2008, Safety of machinery - Human body measurements - Part 3: Anthropometric
data
EN 997:2018, WC pans and WC suites with integral trap
EN 1717:2000, Protection against pollution of potable water in water installations and general
requirements of devices to prevent pollution by backflow
EN 13129:2016, Railway applications - Air conditioning for main line rolling stock - Comfort parameters
and type tests
EN 13272-1:2019, Railway applications - Electrical lighting for rolling stock in public transport systems -
Part 1: Heavy rail
EN 14750-1:2006, Railway applications - Air conditioning for urban and suburban rolling stock - Part 1:
Comfort parameters
EN 16362:2013, Railway applications - Ground based services - Water restocking equipment
EN 16584-2:2017, Railway applications - Design for PRM use - General requirements - Part 2: Information
EN 16584-3:2017, Railway applications - Design for PRM use - General requirements - Part 3: Optical and
friction characteristics
EN 16585-1:2017, Railway applications - Design for PRM use - Equipment and components onboard
rolling stock - Part 1: Toilets
EN 16585-3:2017, Railway applications - Design for PRM use - Equipment and components on board
rolling stock - Part 3: Clearways and internal doors
EN 16922:2017+A1:2019, Railway applications - Ground based services - Vehicle waste water discharge
equipment
EN 17343:2020, Railway applications - General terms and definitions
EN 45545-2:2020, Railway applications - Fire protection on railway vehicles - Part 2: Requirements for
fire behavior of materials and components
EN 45545-6:2013, Railway applications - Fire protection on railway vehicles - Part 6: Fire control and
management systems
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 17343:2020 and the following
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp/
3.1
black water
water previously used in the toilet
Note 1 to entry: This is a combination of water, human waste, toilet chemicals, toilet paper.
3.2
grey water
water previously used in the handwash sink
Note 1 to entry: This is a combination of water and soap only.
3.3
purple water
water previously used in the kitchen sink, dishwasher waste and shower
Note 1 to entry: This is a combination of water, soap, fats, cleaning chemicals.
3.4
water intended for human consumption
water meeting European Directive 2020/2184 used for human consumption, food preparation and
washing/bathing, as set out in 4.1.2
3.5
low use toilet
toilet cabin with an anticipated daily use of less than 10 occasions
3.6
square socket key
Berne key
key in accordance with EN 14752:2019+A1:2021, Annex H
4 Water equipment
4.1 Water supply and storage
4.1.1 Fresh water supply
4.1.1.1 Material
The tanks and the filling and emptying pipes shall be made of material that will not deteriorate and, in
particular, material used shall not be corrosive or toxic.
Materials used shall be suitable for water fit for human consumption.
NOTE Materials are certified to nationally agreed standards of materials for water fit for human
consumption, such as 4MS standards, which is an agreement (initially between four EU member states) for the
harmonization of tests for the hygienic suitability of products in contact with drinking water.
The combination of differing materials should be analysed to avoid electrolytic corrosion. Consideration
should be given to the choice of material so that it does not reduce the water quality. It is normally a
compromise between the best quality and durability.
The materials shall sustain the lifetime of a railway vehicle of 25 years to 40 years. The design of the
system shall take account of the need to change components with a lifetime shorter than the anticipated
lifetime of the vehicle.
4.1.1.2 Drainage
Water tanks and pipes shall be provided with a drainage system designed to ensure complete emptying
and efficient rinsing and meet the requirements of EN 16362:2013, 4.1.4.
The water pipe system shall be drainable for all pipes. System shall automatically drain the pipe system
if the internal temperature falls below 3 °C ± 1 °C (including sensor tolerances) in the area of the
pipework. It is permitted for trace heating to be fitted to toilet pipes to prevent freezing as an
alternative to drainage.
It is possible to carry out physical tests in a climatic chamber to assess where the temperature sensor
should be fitted to predict the likeliest position of the coldest position.
From the test described in EN 16362:2013, 4.1.1.1 if the car body cannot withstand 12 h at −10 °C the
water pipe system shall be drained if the coach is stabled without shore supply. This drainage shall
either be automatic, or an instruction is provided that drainage should be carried out – see 7.2. As
design guidance it is preferable to also be able to drain pipework manually where this is automatic.
4.1.1.3 Control of leakage
The freshwater system and its surroundings should incorporate design features to prevent, or detect
and report, water leaking into the car body. It is permissible for the design to permit water onto the
toilet floor area, but it shall prevent this from spreading to the passenger compartment/vestibule/car
body unless this is a deliberately defined area.
4.1.2 Water intended for human consumption
Water intended for hand washing and showering shall be fit for human consumption.
Water intended for use for making hot drinks shall be heated to a minimum of 80 °C and:
a) be water intended for drinking;
or
b) the water shall be sterilized immediately before use for example by ultraviolet radiation or micro
filtration;
or
c) supplied directly from freshwater containers/bottles.
Water intended for use for drinking water shall:
d) be water intended for drinking;
or
e) provide freshwater containers/bottles.
4.1.3 Recycled water
Treated black water, treated purple water and untreated grey water shall only be reused for toilet
flushing if it doesn’t contain particles greater than 0,5 mm diameter and no more than 500 ppm.
Optically the reused water shouldn’t be different to drinking water; that means that in normal
conditions the reused water should be colourless and the turbidity should be lower than 5 NTU, as
specified in EN ISO 7027-1:2016. In addition, the pH of the reused water should be in the range of 6 to 9.
NOTE Normal conditions means not adding unintended fluids to the system such as ink, milk, soft drinks, etc.
Treated grey water is permitted to also be reused for hand washing and showering if it meets water fit
for human consumption requirements.
4.1.4 Storage tank
4.1.4.1 Freshwater storage tank
The capacity of freshwater storage tanks shall be calculated using parameters shown in
EN 16922:2017+A1:2019, 5.2.2 and 5.2.5. The size of the freshwater tank is a compromise between the
anticipated daily usage and preservation of the stored water quality. As guidance, to retain the optimal
hygienic quality of the potable water the usable volume of the freshwater storage tank should ideally
store only two/three days’ water supply.
The freshwater tank shall be capable of draining manually without any electrical or pneumatic supply.
The draining flow of the freshwater tank shall be compliant with EN 16362:2013, 4.1.4. As design
guidance it is preferable for the driver of multiple units to be able to drain all freshwater tanks from the
driving position when electrical energy is available.
Fresh water tanks shall have a hatch for inspecting and cleaning the freshwater tanks. The access hatch
2 2
shall have a minimum size of 20 000 mm , but it should be 40 000 mm where this is possible. The
minimum dimension of the access hatch shall be 160 mm diameter or the relation between width and
height of a rectangular hatch shall not be greater than 2 to 1. The access hatch shall be accessible
without draining a maximum of 80 % of the capacity of the fresh water. As design guidance the least
water to be drained is preferable and it is recommended that 50 % should be used when possible. The
access hatch of the freshwater tank shall be accessible without removing any other parts (excluding
insulation materials). When the freshwater tank is located inside a cabinet or behind a panel, it is
permitted to have access to the hatch of the freshwater tank by opening a door or other hatch.
The refilling of the fresh water tank shall be possible with power on or off on the train.
4.1.4.2 Retention storage tank
The capacity of retention tanks shall be calculated using parameters shown in
EN 16922:2017+A1:2019, 5.2.2 and 5.2.5. As design guidance the recommendation is that it should be
tailored to four days’ predicted amount, given by calculation according to EN 16922:2017+A1:2019,
however this depends on the intended use of the train as the tanks size is a compromise between
vehicle mass and operational needs.
4.1.4.3 Level indication
The design of the system should consider the need for water level indication in on-board storage tanks.
Some previously used examples are described in EN 16362:2013, Annex A. The indication should
consider the necessity for the accuracy of the display, this should consider whether it is necessary to
show the precise fluid volume or an indication of tank level.
There is also the potential to include the tank levels into the remote condition monitoring systems so
that enroute servicing points could have advanced warning of location of tanks needing replenishment.
If a train control and management system (TCMS) is available, the message “freshwater tank empty”
shall be reported in the TCMS. As design guidance, if a TCMS is available, the continuous actual level in
the freshwater tank should be reported to the TCMS. If more information is available, for example
retention tank reached 95 %, this should also be reported to the TCMS.
4.2 Hand wash basin
4.2.1 Dimensions
The wash basin shall be sufficient size for comfortable washing of hands and shall be no smaller than
220 mm wide and 160 mm from front to back. The shape of the wash basin should contain the normal
use with no overflow of water during acceleration and braking of up to 0,1 g if the actual design
accelerations of the train are not higher.
The sink drain shall be situated at the lowest point of the sink bowl; it shall be always open to discharge
(i.e. not be fitted with a plug).
The sink drain shall be fitted with a perforated plate, or similar device, to prevent large objects entering
the discharge pipe - no object greater than 4 mm diameter shall be able to pass through the drain,
except where there are no valves fitted beyond the sink drain, in this case the maximum size shall be
6,5 mm. Items smaller than 3 mm diameter shall pass through. The design of the drain shall permit the
draining of 1 l of water in 10 s.
The tap discharge point shall be a minimum of 95 mm above the rim of the wash basin and positioned
to permit the washing of hands under running water.
The design of the tap discharge shall minimize the likelihood of splashing with water during use. As an
example, this could be proven with no obstruction and then with the presence of hands simulated by a
100 mm diameter disc placed 50 mm beneath the water tap outlet and check that no water is splashed
outside the wash basin.
To prevent vandalism damage, the wash bowl unit and its fixing shall withstand a static force of
1 000 N, applied across a 55 mm diameter area, centred at any point of the upper plane of the wash
basin, without damage or permanent deformation.
4.2.2 Water supply/heating (& legionella)
The volume of water supplied per actuation shall be a minimum of 180 mL in a minimum of 7 s. As
design guidance 250 mL is a preferred volume to achieve acceptable washing of hands.
Where the hand wash water supply is heated (excluding frost prevention) the water at a sink shall
either be available at a temperature of minimum 13 °C and maximum 22 °C (or ambient external
temperature) without manual control by passenger while the train or the coach is in passenger service,
or a mixer tap fitted. If a mixer tap is fitted, the warm water supply should be heated at a temperature of
minimum 60 °C in order to prevent the supply water against Legionella.
The design of the mixer tap shall prevent scalding water, the maximum temperature at the delivery
point shall not exceed 43 °C.
NOTE On some designs of mixer tap there is a special design feature for disinfection which allows greater
temperature, but this is completed under controlled conditions.
Due to the possibility of bacteria growth, water supply tanks shall be designed to enable the tank and all
pipework to be flushed, rinsed and drained when required.
If a water tap is turned on by a proximity sensor this shall be indicated by a sign see Figure A.13.
4.2.3 Soap supply
Washing facilities shall be fitted with:
— a liquid soap dispenser; or
— a foam soap dispenser; or
— be supplied with solid soap bars.
NOTE The type of soap dispenser is normally defined at specification stage of design and in cooperation
between the manufacturer and the intended operators.
If a soap dispenser is fitted the tank shall be accessible for stocking by servicing staff but protected from
general public access to the tank by, for example, a Berne key.
The soap dispenser shall be fitted directly above the hand wash basin, so that any spillage is directly
into the basin and labelled - see Figure A.10.
The volume of the liquid soap dispenser shall be a minimum of 0,75 l.
The soap dispenser shall be easy to fill and clean. The design shall consider that any spillage during the
filling process does not run into inaccessible spaces. Components that are difficult to clean shall not be
located beneath or in the vicinity of the soap filling opening to prevent spillage causing additional
cleaning activity.
For a liquid soap dispenser, it shall be possible to refill by pouring soap from above from a separate
container without removing the soap dispenser tank and without spillage. This is fulfilled if there is an
unobstructed free space of 80 mm, as a minimum, above the soap dispenser tank.
4.2.4 Hand sanitizer
It is permissible to fit a sanitizer dispenser. taking the form of:
— a hand sanitizer dispenser refillable, from a separate container;
— a hand sanitizer dispenser, fitted with a cartridge or a removable disposable or reusable containers.
NOTE The type of sanitizer dispenser and refilling conditions are normally defined at specification stage of
design and in cooperation between the manufacturer and the intended operators.
If a sanitizer dispenser is fitted, the tank shall be accessible for stocking by servicing staff but protected
from general public access to the tank by, for example, a Berne key.
For a sanitizer dispenser, except as shown below, it shall be possible to refill by pouring sanitizer from
above from a separate container without removing the sanitizer tank and without spillage. This is
fulfilled if there is an unobstructed free space of 80 mm, as a minimum, above the sanitizer tank.
Components that are difficult to clean shall not be located beneath or in the vicinity of the sanitizer tank
opening to prevent spillage causing additional cleaning activity.
As design guidance the sanitizer outlet is best placed directly above the sink such that spillage of
sanitizer in use falls into the sink. The sanitizer shall be labelled – for example see Figure A.14.
4.2.5 Hand dryer/towel
It is permitted to fit either a hand dryer or paper dispenser (or both). It is recommended that an air
dryer is fitted for cleanliness, ecological and sustainability reasons, prevent increased litter, fire risk,
restocking maintenance requirement and to prevent hand towels blocking the toilet flush system. Hand
towels should only be used where considered necessary. It is preferable to fit an electric hand dryer to
reduce waste and help the environment.
NOTE The fitment of a hand dryer and/or hand towel dispenser is normally defined at specification stage of
design and in cooperation between the manufacturer and the intended operators.
The outlet of the dryer or dispenser shall be a maximum of 1 200 mm above floor level. The dispenser
shall meet the reach range as shown in EN 16585-1:2017, Annex B.
The dryer or dispenser shall be easily visible or indicated by a pictogram as given in Figure A.3 in
Annex A.
Electric hand dryers shall:
a) be contained in splash proof casing;
b) only operate for a specific period and then shall automatically stop;
c) heating elements automatically de-energize when the blower motor is not operating, or the outlet
blocked;
d) de-energize when the temperature exceeds 62 °C;
e) be tamperproof by passengers but maintainable by staff.
Where an electric hand dryer is not fitted, a paper towel dispenser shall be fitted. It is also permissible
to fit both.
If the toilet is equipped with a hand paper dispenser, it shall dispense paper on the basis of a single
sheet of paper at a time, to prevent overconsumption and potential blocking of the toilet bowl as a
result of misuse.
Paper dispenser shall accommodate stored paper of 265 mm by 100 mm. The height should be a
minimum of 400 mm. The values quoted here are the largest which will ensure compatibility between
servicing points; it is possible to fit smaller size dispensers where the size of paper to replenish the
stock is controlled. The type of paper provided in the dispenser shall either be compatible with the
toilet flush system or a notice shall be prominently displayed on (or adjacent to) the paper dispenser or
inside the toilet lid, to not put paper towel in the toilet bowl as shown in Figure A.2.
Where a paper towel dispenser is fitted, the position shall permit the easy refilling of the paper. Where
a paper towel dispenser is fitted, passengers should be discouraged from gaining access to the paper
container by the fitting of locks. It is normal practice to gain access to consumable products by use of a
square socket key (Berne key). The hand towel dispenser shall have a pictogram, as shown in
Figure A.4, on the inside to describe the orientation and folded state requirements of the hand towels.
The stock level of paper shall be clear to servicing staff.
Wherever hand towels are used a waste bin shall be provided, see 5.3.7.
4.3 Shower
4.3.1 Dimensions
The shower shall permit a standing person to wash hair and body. The floor shall be non-slip and direct
water to a drain. A minimum area of 600 mm diameter and 1 800 mm high is recommended. As design
guidance the normal slip resistance is considered to be a higher coefficient of friction than 0,45.
A shelf for soap shall be provided.
The shower shall be fitted with a grab hand rail.
4.3.2 Water supply/heating (& legionella)
Water supply for showers shall be fitted with mixer taps. The design of the mixer tap shall prevent
scolding water and the maximum temperature at the delivery point shall not exceed 43 °C.
The hot water temperature, before the mixer tap, shall be a minimum of 60 °C to discourage legionella.
4.4 Waste water (from sink and shower)
4.4.1 Sink
Grey water from the hand wash sink shall be directed to:
a) to its own retention tank;
b) the toilet retention tank via a non-return system, that will permit the flow in one direction only, to
avoid pathogenic germs rising back into the wash basin.
NOTE Non return systems are described in EN 1717:2000.
c) straight to the track or via an intermediate tank or non-return valve to avoid pressure pulses in
tunnels.
The grey water system shall be designed to prevent the wheel/rail noise from outside the coach
entering the toilet cubicle through the drain.
For gravity operated grey water systems from the handbasin, the cross section of the grey water outlet
(hoses and piping) shall be at least 700 mm . The shape shall be circular or elliptical.
4.4.2 Shower
The purple water from the shower shall be directed to:
a) to its own retention tank;
b) the toilet retention tank via a non-return valve that will permit the flow in one direction only, to
avoid pathogenic germs rising back into the wash basin.
For gravity operated purple water systems from the shower, the cross section of the purple water outlet
(hoses and piping) shall be at least 1 100 mm . The shape shall be circular or elliptical.
5 Toilet
5.1 Provision of toilet
5.1.1 Fitment
The requirement for provision and number of toilets on the train shall be taken at the design stage. This
is normally done at the specification stage of design and in cooperation between the manufacturer and
the intended operators.
Noting that the provision of toilets at stations should be considered as part of the overall system
solution, the guidance to be cognisant of frequency of service and likely to be different for:
a) Long distance inter-city journey times > 3 h
b) Commuter / regional trains journey times 1 h to 3 h
c) Light rail / metro journey times < 90 min
Consideration should be given to the position of the toilet within the train, the potential walking
distance to a toilet should be considered. As guidance to calculate requirement for, and number, of
toilets:
i) The provision of toilet facilities is expected for long-distance inter-city trains. This should be a
minimum of the same number of toilets as coaches. This could be increased to two toilets per coach
if the seating exceeds 60.
ii) The provision of toilet facilities is recommended for commuter/regional trains, as a minimum one
toilet per two coach trainset, two toilets per three coach trainsets, three toilets per four coach
trainset, four toilets up to six coach trainset, five toilets up to eight coach trainsets and six toilets for
any trainset above eight coaches. As a minimum one toilet per three coach train. This could be
increased for coaches intended for longer distances or increased seating.
iii) The provision of toilet facilities for light rail or metro type trains is not normal practice, but toilets
can of course be fitted. It is permissible to fit a ‘low use toilet’ which have less facilities as detailed
in 5.1.2.1.
5.1.2 Requirements for all toilets
5.1.2.1 General requirements
Every toilet cabin shall have, as a minimum:
a) lockable door with occupation indicator visible from outside, see 5.3.2. Where a low use toilet is
fitted, it is permissible for the indicator to be mechanical and only show free or engaged;
b) toilet bowl with seat and lid, see 5.3.3;
c) closed emission toilet system, see 5.3.4;
d) toilet paper dispenser, see 5.3.6;
e) washbasin with access to water. The water supply shall be water intended for human consumption
as shown in 4.1.2 and a notice 'Not intended as drinking water', see Figure A.5, shall be clearly
provided. The hand washing amenities may also be accessible in the adjacent area of the cabin, see
4.2. Where a low use toilet is fitted, it is permissible to supply wet towels instead of washing
facilities;
NOTE A visual sign clearly indicates that the water provided at the tap is not intended for drinking due to
possible reservations regarding the hygienic conditions of the tap.
f) two coat hooks. Ideally these should be at two separate heights;
g) mirror, see 5.3.8;
h) artificial illumination (to increase privacy it is recommended that daylight illumination by a frosted
window is not used, however if frosted windows are used it shall not be possible to distinguish
shapes within the toilet from the outside of the coach). The minimum lighting level shall be as
prescribed in EN 13272-1:2019;
i) ventilation according to EN 14750-1:2006 or EN 13129:2016 (depending which vehicle category
applies);
j) waste bin, see 5.3.7;
k) train address loudspeaker. Where a low use toilet is fitted, it is permissible not to fit separate
speaker providing external address is audible inside the toilet;
l) a level surface of a minimum 100 mm × 150 mm, to place handbags etc. The position shall avoid
splashes from the hand wash basin. Where a low use toilet is fitted, it is permissible not to provide
this flat surface;
m) optional fitment of smoke or fire detection system, as described in EN 45545-6:2013, 5.2;
n) option for fitment of call for aid button, as described in EN 16585-1:2017, 5.6 (note this is
mandatory in universal toilets but should be considered for all toilet facilities);
o) optional fitment of baby changing facilities. Where fitted these shall be indicated by the sign shown
in Figure A.11;
p) no smoking signs shall include the additional prohibition of no E cigarettes, as shown in
Figure A.12.
Toilet systems shall be ergonomically designed so that each process is logically set out in order (for
example for hand washing the components should be set out: soap, water, dryer, antiseptic).
5.1.2.2 Materials
Materials used in the toilet cabin shall be stated by the material manufacturer to be moisture resistant
and shall comply with EN 45545-2:2020. As design guidance the material properties should not be
affected by the expected concentration of water over the design lifetime.
The exposed surfaces of walls, doors, ceilings and covers shall:
— be antistatic;
— be stated by the material manufacturer to be resistant to cleaning products, as set out in 7.6.
The materials chosen for use in toilet compartments shall minimize the biological contamination hazard
and avoid bad smells.
As design guidance, it is permissible to have exposed surfaces of stainless steel. However, consideration
needs to be given to contrast of surface colour as required by EN 16584-1:2017, 6.2.3.
The number of joints on exposed surfaces should be kept to a practicable minimum. Joints shall be
designed to withstand regular routine cleaning and also special hygienic cleaning which shall be
specified in the maintenance instructions. This includes the chemicals used, the abrasive cleaners
specified and the maximum pressure of high-pressure cleaning. The design should consider the location
of any joints to avoid joints in areas that cleaning fluids could accumulate due to draining from surfaces.
The design should consider the ability of joints to withstand the vibration due to running on the
railway.
Any additive for use in the toilet system (for example deodorants or anti-lime chemicals) shall be
automatic or simple to use and dissolve in water without stirring. The concentration of any additive
shall be automatically diluted for use when mixed on the vehicle. The safety requirements for chemical
additives shall be complied with and considered at the design stage. Any additive for use in the toilet
system, if required to be stored on the vehicle, shall be stored securely to avoid spillage/leakage and
easy to fit/exchange. The waste from the additive shall not require any special disposal requirements.
The use of additives does not apply to chemicals used during maintenance operations by trained staff.
5.1.2.3 Toilet floor
The floor of the toilet cubicle shall be made of material resistant to chemical cleaners, disinfectants and
bodily fluids. The material shall be non-slip, even when wet, as detailed in EN 16584-3:2017. The floor
of the toilet shall be watertight and easy to clean. Except at the doorway, the toilet floor surface shall
wrap up the wall for a minimum of 50 mm, with a radius between horizontal and vertical of at least
40 mm. Where the sliding door slides inside the cabin it is permitted to reduce the radius in the area of
the door runner.
It is permitted for the floor of the toilet to have a gradual slope of not greater than 5 mm/m to a drain at
one point. If the toilet floor has a drain, the drain shall prevent smells, draughts and noise entering the
toilet through the drain.
Consideration should be given to the detection of fluids on the floor where the toilet could be
automatically put out of service if leakage or overflow from the toilet or sink is detected.
5.1.2.4 Aesthetic design
The design of the toilet cubicle should encourage the user to consider the toilet as hygienic. The design
of the toilet system shall prevent odours from the retention tank entering the toilet cubicle.
The toilet cubicle shall be designed to promote cleaning, it shall have:
— smooth surfaces between materials, i.e. no difference in height of greater than 1 mm at the
crossover of different parts;
— round edges and corners with nothing smaller than 2 mm radius.
The design of the toilet bowl and associated fittings shall withstand the daily application of bodily fluids
and cleaning chemicals as set out in 7.6.
The design of the toilet system shall consider the need for removable components that can be removed
and remotely cleaned.
The design of toilets shall mitigate against unpleasant odours inside or outside the cubicle. The design
of the HVAC system should promote the flow of air from the coach interior into the toilet cubicle to
avoid air from cubicle routinely passing back into interior of coach. The temperature within the toilet
cubicle shall comply with standards EN 13129:2016, 10.2 or EN 14750-1:2006, 9.2.2 as applicable. The
rate of change of air within the toilet cubicle should be changed at a minimum rate of 25 times per hour.
The test for odour escape shall be by either a smoke test to demonstrate no smoke enters the passenger
saloon during normal service of the air conditioning system, or measurement of air flows from toilet
module to the outside of the coach.
5.1.2.5 Use of toilet
5.1.2.5.1 Working conditions
It shall be possible to use the toilet normally with the train stopped in stations, ferries, etc. with train
domestic supply normal.
It shall be possible to use the toilet with the train domestic supply removed for a minimum of 12 flushes
per toilet or 33 flushes per 4 car train (45 flushes per 6 car train), assuming the fitment of the number
of toilets as recommended in 5.1.2.1 a) or b).
Except as shown below the toilet system shall function normally with the vehicle at an inclination of at
least 11° in both longitudinal directions and 8° in both transverse directions. It is permitted that the
toilet door self-closing mechanism of manually operated doors, freeze draining and waste water
emptying is excluded from functionality at the extreme angles.
NOTE 1 The angles specified above include an element of braking acceleration and are therefore the maximum.
The toilet system shall function normally in the temperature range specified in EN 16362:2013, 4.1.1.1.
In addition, the toilet system shall be ready for use within the start-up time specified for the train after
the heating system of the train is turned on, ideally not greater than one hour.
NOTE 2 The start-up time is a contractual specification, as shown in EN 14750-1:2006, 7.2.
The emptying of a toilet waste water tank shall be possible with power on or off on the train.
5.1.2.5.2 Pipework
The pipework for the toilet facilities shall be designed in accordance with the requirements of
EN 16922:2017+A1:2019 and EN 16362:2013, to ensure that a frost protection under the terms given
there is feasible.
From the area of the toilet cabin it shall be possible to drain the pipework, toilet and freshwater tank. As
design guidance for multiple unit trains the drainage of the fresh water pipes and tanks of the complete
train should also be possible from one control (e.g. in the driver’s cab).
After a toilet system drain process the toilet system shall generate a signal to confirm whether or not
that the process was performed as intended. Where a TCMS is available the signal shall be reported to
TCMS.
It is good practice to label the pipework with what is carried by the pipework.
The use of copper pipework is not recommended due to attack by chlorination chemicals. Problems
have also been experienced with 1.43 stainless steel in waste water systems (1.4571 grade has been
found acceptable for waste water). Note that 1.43 stainless steel has been found acceptable in fresh
water systems. The grades of stainless steel are described in EN 10088-1:2014.
5.1.2.5.3 Use after maintenance and repair
The toilet system shall start up automatically after routine maintenance events. Except as shown below,
the toilet system shall automatically restart after a failure if the failure signal is cleared. The
manufacturer shall state in the instruction handbook any specific failure which would require a manual
reset of the toilet system. See 7.2.
5.1.2.5.4 Design for use
If multiple toilets are located in the same vehicle common parts are permitted, for example the fresh
water and/or waste water tanks (including the vacuum system). The manufacturer shall state the
reduction of availability and reliability of all the toilet systems as a result of the common parts.
To discourage the spread of virus and bacteria, where possible, activation controls should be
contactless. Where contactless controls are used there shall be a tactile notice beside it for the guidance
of partially sighted personnel.
With the toilet door closed the interior area shall not be visible from the passenger area or outside of
the coach.
5.1.2.6 Noise
The operation of the toilet system shall be designed to minimize the noise emitted from the various
functions of the system, including flushing, hand dryer etc.
There shall be no sound emitted from the toilet cubicle greater than 60 dB(A) when measured 1 m
outside of the closed toilet door. This test shall be carried out with the vehicle still and the
heating/ventilation system not functioning.
5.2 Universal toilet
The dimensions of universal toilets to suit wheelchair users shall comply with EN 16585-1:2017.
As design guidance for wheelchair users, consideration should be given to the position of functional
equipment such as the waste bin to enable wheelchair users to place waste paper into the bin without
the entrance being blocked by the wheelchair armrests.
NOTE The functional equipment required to be accessible are normally defined at specification stage of
design and in cooperation between the manu
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