ISO/TS 20100:2008

SLOVENSKI STANDARD
SIST-TS ISO/TS 20100:2020
01-junij-2020
Plinasti vodik - Polnilne postaje
Gaseous hydrogen - Fuelling stations
Carburant d'hydrogène gazeux - Stations-service
Ta slovenski standard je istoveten z: ISO/TS 20100:2008
ICS:
27.075 Tehnologija vodika Hydrogen technologies
71.100.20 Industrijski plini Gases for industrial
application
SIST-TS ISO/TS 20100:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS ISO/TS 20100:2020

TECHNICAL ISO/TS
SPECIFICATION 20100
First edition
2008-12-01

Gaseous hydrogen — Fuelling stations
Carburant d'hydrogène gazeux — Stations-service




Reference number
ISO/TS 20100:2008(E)
©
ISO 2008

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©  ISO 2008
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Contents Page
Foreword. v
1 Scope . 1
2 Normative references . 2
3 Terms and definitions. 3
4 General design requirements . 7
5 Hydrogen delivery systems . 8
5.1 General. 8
5.2 Gaseous hydrogen supply by tube trailers and multi cylinder packs . 8
5.3 Liquid hydrogen supply . 9
5.4 Pipeline . 13
6 On-site generation . 13
6.1 Hydrogen generators using water electrolysis process. 13
6.2 Hydrogen generators using fuel processing technologies. 13
6.3 Shutdown control . 13
7 Hydrogen compressors. 14
7.1 General. 14
7.2 Vibration and movement. 14
7.3 Compressor enclosure ventilation. 14
7.4 Attachment to other buildings. 14
7.5 Enclosure access doors . 14
7.6 Control and monitoring. 14
8 Filters and separators . 15
9 Hydrogen purifier. 15
10 Gaseous hydrogen buffer storage tanks. 16
11 Dispenser, fuelling assembly, and process control. 16
11.1 Location and protection of dispensers . 16
11.2 Fuelling position . 16
11.3 Dispenser system design . 17
11.4 Fuelling hose assembly . 18
11.5 Hose breakaway device . 20
11.6 Fuelling connector. 21
11.7 Fuelling process control . 22
11.8 Dispenser safety devices. 22
11.9 Safety notices at fuelling point. 24
12 Hydrogen fuel specifications. 25
13 Layout . 25
13.1 General. 25
13.2 Safety distances. 25
14 Fire and explosion hazard protection requirements. 30
14.1 General requirements. 30
14.2 Area classification . 30
14.3 Protection requirements for equipment within classified areas. 30
14.4 Prevention of the accumulation of ignitable mixtures indoors and in enclosures. 30
14.5 Ventilation specification . 31
14.6 Start-up purge . 32
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14.7 Areas adjacent to hazardous areas. 32
14.8 Hydrogen detection systems. 32
14.9 Safety of personnel. 33
15 Hydrogen storage siting requirements. 33
15.1 Ground storage . 33
15.2 Below-ground vaults. 33
15.3 Fuelling station canopy-top storage . 34
15.4 Roof-top installation of gaseous hydrogen systems . 35
16 General equipment requirements. 36
16.1 Materials. 36
16.2 Piping carrying gaseous hydrogen. 37
16.3 Pressure relief devices for gaseous hydrogen systems . 37
16.4 Protection from the accumulation of static charges. 38
16.5 Equipment grounding and bonding . 38
16.6 Valves for gaseous hydrogen. 38
16.7 Instruments and cabinets. 39
17 Gaseous hydrogen vent systems. 39
18 Instrumentation control and safety systems . 39
18.1 General . 39
18.2 Master system . 40
18.3 Alarms . 40
18.4 Pneumatics . 41
18.5 Safety systems . 41
18.6 Instrumentation . 41
18.7 Safety functions control . 41
19 Electrical systems (electrical equipment and wiring) . 42
19.1 General requirements . 42
19.2 Power supply. 42
19.3 Electromagnetic compatibility and interference (EMC) . 42
20 Safety systems . 42
20.1 Emergency principles and operations. 42
20.2 Fire detection systems . 43
20.3 Safety and emergency shut-off systems . 43
20.4 Emergency release of gas from gaseous hydrogen buffer storage tanks. 43
20.5 Fire-fighting systems. 43
21 Protection from external effects. 44
21.1 General principles. 44
21.2 Lightning protection . 44
21.3 Protection from environmental conditions . 44
22 Tests. 44
22.1 Pressure test. 44
22.2 Leak test. 45
22.3 Testing of electrotechnical control/safety/emergency systems and components . 45
Bibliography . 46

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Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
In other circumstances, particularly when there is an urgent market requirement for such documents, a
technical committee may decide to publish other types of document:
⎯ an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in
an ISO working group and is accepted for publication if it is approved by more than 50 % of the members
of the parent committee casting a vote;
⎯ an ISO Technical Specification (ISO/TS) represents an agreement between the members of a technical
committee and is accepted for publication if it is approved by 2/3 of the members of the committee casting
a vote.
An ISO/PAS or ISO/TS is reviewed after three years in order to decide whether it will be confirmed for a
further three years, revised to become an International Standard, or withdrawn. If the ISO/PAS or ISO/TS is
confirmed, it is reviewed again after a further three years, at which time it must either be transformed into an
International Standard or be withdrawn.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO/TS 20100 was prepared by Technical Committee ISO/TC 197, Hydrogen technologies.

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TECHNICAL SPECIFICATION ISO/TS 20100:2008(E)

Gaseous hydrogen — Fuelling stations
1 Scope
This Technical Specification specifies the characteristics of outdoor public and non-public fuelling stations that
dispense gaseous hydrogen used as fuel onboard land vehicles of all types.
Residential and home applications to fuel land vehicles are excluded from this Technical Specification.
The fuelling station may comprise, as applicable, the following as shown in Figure 1:
⎯ Delivery of hydrogen by pipeline, trucked-in gaseous and/or liquid hydrogen;
⎯ On-site hydrogen generators using water electrolysis process or hydrogen generators using fuel
processing technologies;
⎯ Liquid hydrogen storage, pumping and vaporizing systems;
⎯ Gaseous hydrogen compression and purification systems;
NOTE When the fuelling station comprises an on-site hydrogen generator, the compressor/purifier system is
commonly integrated into it.
⎯ Gaseous hydrogen buffer storage;
⎯ Gaseous hydrogen dispensers.

Figure 1 — Gaseous hydrogen — Fuelling station
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2 Normative references
The following referenced documents are indispensable for the application 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.
ISO 4126-1, Safety devices for protection against excessive pressure — Part 1: Safety valves
ISO 4126-2, Safety devices for protection against excessive pressure — Part 2: Bursting disc safety devices
ISO 4414, Pneumatic fluid power — General rules relating to systems
ISO 7751, Rubber and plastics hoses and hose assemblies — Ratios of proof and burst pressure to design
working pressure
ISO 14113, Gas welding equipment — Rubber and plastic hoses assembled for compressed or liquefied
gases up to a maximum design pressure of 450 bar
ISO 14687 (all parts), Hydrogen fuel — Product specification
ISO 15649, Petroleum and natural gas industries — Piping
ISO 16110-1, Hydrogen generators using fuel processing technologies — Part 1: Safety
ISO 16528-1, Boilers and pressure vessels — Part 1: Performance requirements
ISO 17268, Compressed hydrogen surface vehicle refuelling connection devices
ISO 21009-1, Cryogenic vessels — Static vacuum-insulated vessels — Part 1: Design, fabrication, inspection
and tests
ISO 21011, Cryogenic vessels — Valves for cryogenic service
ISO 21012, Cryogenic vessels — Hoses
ISO 21013-1, Cryogenic vessels — Pressure-relief accessories for cryogenic service — Part 1: Reclosable
pressure-relief valves
ISO 21013-2, Cryogenic vessels — Pressure-relief accessories for cryogenic service — Part 2: Non-
reclosable pressure-relief devices
ISO 21013-3, Cryogenic vessels — Pressure-relief accessories for cryogenic service — Part 3: Sizing and
capacity determination
ISO 22734-1, Hydrogen generators using water electrolysis process — Part 1: Industrial and commercial
applications
IEC 60079-0, Explosive atmospheres — Part 0: Equipment — General requirements
IEC 60079-10, Electrical apparatus for explosive gas atmospheres — Part 10: Classification of hazardous
areas
IEC 60079-14, Explosive atmospheres — Part 14: Electrical installations design, selection and erection
IEC 60079-29-1, Explosive atmospheres — Part 29-1: Gas detectors — Performance requirements of
detectors for flammable gases
IEC 60079-29-2, Explosive atmospheres — Part 29-2: Gas detectors — Selection, installation, use and
maintenance of detectors for flammable gases and oxygen
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IEC 60079-30-1, Explosive atmospheres — Part 30-1: Electrical resistance trace heating — General and
testing requirements
IEC 60204-1, Safety of Machinery — Electrical equipment of machines — Part 1: General requirements
IEC 60364-4-41, Low-voltage electrical installations — Part 4-41: Protection for safety — Protection against
electric shock
IEC 60445, Basic and safety principles for man-machine interface, marking and identification — Identification
of equipment terminals and conductor terminations
IEC 60446, Basic and safety principles for man-machine interface, marking and identification — Identification
of conductors by colours or alphanumerics
IEC 60529, Degrees of protection provided by enclosures (IP Code)
IEC 61000-6-1, Electromagnetic compatibility (EMC) — Part 6-1: Generic standards — Immunity for
residential, commercial and light-industrial environments
IEC 61000-6-3, Electromagnetic compatibility (EMC) — Part 6-3: Generic standards — Emission standard for
residential, commercial and light-industrial environments
IEC 61069-7, Industrial-process measurement and control — Evaluation of system properties for the purpose
of system assessment — Part 7: Assessment of system safety
IEC 61508, Functional safety of electrical/electronic/programmable electronic safety-related systems
IEC 61511-1, Functional safety — Safety instrumented systems for the process industry sector — Part 1:
Framework, definitions, system, hardware and software requirements
IEC 62305-3, Protection against lightning — Part 3: Physical damage to structures and life hazard
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
accessory
part capable of performing an independent function and contributing to the operations of the equipment that it
serves
3.2
authority having jurisdiction
organization, office or individual responsible for approving a facility along with an equipment, an installation or
a procedure
3.3
bleed venting
expiration or inspiration of air or gas from, or to, one side of a diaphragm of any accessory, component or
equipment such as a valve, pressure regulator or switch
3.4
buffer storage tanks
pressurized tanks, which can be located between a hydrogen generator and a compressor for an even flow of
gas to the compressor or between the compressor and dispenser for accumulation of pressurized gas supply
for vehicle fuelling
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3.5
control system
system that is intended to automatically operate the fuelling station within its normal operating parameters
NOTE The control system includes the measuring, monitoring and reporting and recording functions, as applicable.
3.6
design pressure
maximum pressure permissible in a storage vessel (at its top) or a piping system for a designated temperature
NOTE 1 The design pressure is the basis for the pressure setting of the pressure relief devices protecting the vessel or
piping system.
NOTE 2 The design pressure may also be the maximum allowable operating pressure rating of pressure vessels
manufactured in accordance with national pressure vessel codes.
3.7
dispenser
parts of the pressurized-gas fuelling station via which the pressurized gas is dispensed to vehicles
NOTE As an example, the dispenser may include a dispenser cabinet, a gas flow meter, a fuelling hose and fuelling
nozzle attachments.
3.8
dispenser cabinet
protective housing that encloses the dispenser gas containing equipment
3.9
dispensing system
system comprising all equipment necessary to carry out the vehicle fuelling operation, downstream of the
hydrogen supply system
3.10
enclosure
structure that protects equipment from the environment, provides noise attenuation, or provides safety to the
areas surrounding the equipment
3.11
fail-safe
design feature that ensures that safe operating conditions are maintained in the event of a malfunction of
control devices or an interruption of a supply source
3.12
fill pressure
pressure attained at the end of filling
NOTE Fill pressure varies according to the gas temperature in the vehicle tank, which is dependent on the changing
parameters and the ambient conditions.
3.13
forecourt
hard surfaced area at the front of the vehicle fuelling position, including any area underneath a canopy
3.14
fuelling connector
joined assembly of the fuelling nozzle and fuelling receptacle, which permits quick connect and disconnect of
the fuel supply to the vehicle or storage system
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3.15
fuelling hose
flexible conduit used for dispensing gaseous hydrogen to vehicles through a fuelling nozzle
3.16
fuelling nozzle
mating part of the fuelling connector at the fuelling station, including shut-off valves, that connects the fuelling
hose to the vehicle fuelling receptacle for the transfer of hydrogen fuel
3.17
fuelling receptacle
mating part of the fuelling connector mounted on a vehicle
3.18
fuelling position
area adjacent to the hydrogen dispensers, where customers park their vehicles for fuelling
3.19
fuelling station
facility for the dispensing of compressed hydrogen, which includes all stationary equipment that supplies,
compresses, stores and dispenses gaseous hydrogen to fuel a land vehicle
3.20
guard
part of a machine specially used to provide protection by means of a physical barrier
NOTE Depending on its construction, a guard may be called casing, cover, screen, door, enclosed guard, etc.
3.21
harm
physical injury or damage to the health of people, or damage to property or to the environment
3.22
hazard
potential source of harm
3.23
hazardous event
occurrence in which a hazardous situation results in harm
3.24
hazardous situation
circumstance in which people, property or the environment are exposed to one or more hazards
3.25
hose breakaway device
component installed downstream of the dispenser outlet connection to protect the dispenser assembly from
damage by vehicles driving away while still connected to the dispenser nozzle
3.26
housing
section of a system that encloses, and is intended to protect, operating parts, control mechanisms, or other
components, which need not be accessible during normal operation
3.27
hydrogen purifier
equipment to remove oxygen, moisture and other impurities from the hydrogen
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3.28
manufacturer
person or organization responsible for the design, fabrication and testing of equipment and components
3.29
maximum fill pressure
maximum pressure to which a vehicle tank may be filled
3.30
mechanically actuating safety equipment
mechanically actuating equipment that prevents fuelling station operation outside specified acceptable
maximum or minimum operating pressures or that prevents a gas leakage in the event of an incident
3.31
nominal working pressure
nominal working pressure is the vehicle tank pressure, as specified by the manufacturer, at a uniform gas
temperature of 15 °C or as specified and at full gas content
3.32
non-public fuelling station
fuelling station that does not sell or dispense gaseous hydrogen to the general public, e.g. private or municipal
vehicle fleet operation
3.33
operator
licensed person or organization responsible for the safe operati
...