ISO/TS 19880-1:2016

Gaseous hydrogen - Fuelling stations - Part 1: General requirements

ISO/TS 19880-1:2016 recommends the minimum design characteristics for safety and, where appropriate, for performance of public and non-public fuelling stations that dispense gaseous hydrogen to light duty land vehicles (e.g. Fuel Cell Electric Vehicles). NOTE These recommendations are in addition to applicable national regulations and codes, which can prohibit certain aspects of this document. It is applicable to fuelling for light duty hydrogen land vehicles, but it can also be used as guidance for fuelling buses, trams, motorcycles and fork-lift truck applications, with hydrogen storage capacities outside of current published fuelling protocol standards, such as SAE J2601. Residential applications to fuel land vehicles and non-public demonstration fuelling stations are not included in ISO/TS 19880-1:2016. It provides guidance on the following elements of a fuelling station: - hydrogen production/delivery system - delivery of hydrogen by pipeline, trucked in gaseous and/or liquid hydrogen, or metal hydride storage trailers; - on-site hydrogen generators using water electrolysis process or hydrogen generators using fuel processing technologies; - liquid hydrogen storage; - hydrogen purification systems, as applicable; - compression - gaseous hydrogen compression; - pumps and vaporizers; - gaseous hydrogen buffer storage; - pre-cooling device; - gaseous hydrogen dispensers.

Carburant d'hydrogène gazeux — Stations-service — Partie 1: Exigences générales

General Information

• Status: Withdrawn
• Publication Date: 29-Jun-2016
• Withdrawal Date: 29-Jun-2016
• ICS: 43.060.40 - Fuel systems
• ICS: 71.100.20 - Gases for industrial application
• Technical Committee: ISO/TC 197 - Hydrogen technologies
• Drafting Committee: ISO/TC 197/WG 24 - Gaseous hydrogen – Fuelling protocols for hydrogen-fuelled vehicles
• Current Stage: 9599 - Withdrawal of International Standard
• Start Date: 04-Mar-2020
• Completion Date: 13-Dec-2025

Relations

• Revised: ISO 19880-1:2020 - Gaseous hydrogen - Fuelling stations - Part 1: General requirements
• Effective Date: 16-Jul-2016
• Revises: ISO/TS 20100:2008 - Gaseous hydrogen - Fuelling stations
• Effective Date: 28-Sep-2013

Standards Content (Sample)

TECHNICAL ISO/TS
SPECIFICATION 19880-1
First edition
2016-07-01
Gaseous hydrogen — Fuelling
stations —
Part 1:
General requirements
Carburant d’hydrogène gazeux — Stations-service —
Partie 1: Exigences générales
Reference number
©
ISO 2016
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
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ii © ISO 2016 – All rights reserved

Contents Page
Foreword .vii
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 3
4 Abbreviated terms .10
5 General safety recommendations .11
5.1 Hydrogen fuelling station safety recommendations .11
5.2 Risk assessment .12
5.2.1 Methodology for semi-quantitative and quantitative risk assessment for
assessing hydrogen installation safety .13
5.3 Mitigation measures to improve system safety .20
5.4 Mitigations which reduce the potential for the formation of a flammable or
explosive mixture .20
5.4.1 General.20
5.4.2 Hydrogen detection systems .21
5.4.3 Safety and emergency shut-off systems . .22
5.4.4 Mitigation for the formation of a flammable or explosive mixture in enclosures 22
5.4.5 General requirement hydrogen venting for mitigation for the formation of
a flammable or explosive mixture .23
5.5 Mitigations which reduce the potential for ignition .23
5.5.1 General.23
5.5.2 Areas subject to restriction of activity .23
5.6 Mitigation of the escalation and/or impact of a fire or explosion originating from
the fuelling installation .24
5.6.1 General.24
5.6.2 Flame detection systems .25
5.6.3 Enclosures containing hydrogen systems .25
5.6.4 Emergency release of gas from hydrogen storage tanks under fire conditions .25
5.7 Mitigation of the effect of an external fire/events on the fuelling station installation .26
5.7.1 General.26
5.7.2 Layout .26
5.7.3 Fire barrier recommendations .26
5.7.4 Mitigating against vehicular impact .27
5.7.5 Firefighting systems .27
5.7.6 Emergency principles and operations .27
5.8 Safety distances .28
5.8.1 General.28
5.8.2 Types of safety distances .29
5.8.3 Examples of safety distances .30
5.8.4 Safety distances relating to hydrogen vent stack outlets .31
5.9 Protection measures for non-hydrogen hazards .32
5.9.1 General.32
5.9.2 Protection measures for asphyxiation hazard in an enclosure.32
5.9.3 Protection measures for emergency egress from enclosed spaces .32
5.9.4 Protection measures from environmental conditions .33
5.9.5 Protection measures for hose whip .33
5.9.6 Protection measures for noise .33
6 Process control and safety systems .33
6.1 General .33
6.2 Emergency shutdown functionality .34
6.3 Manually actuated emergency stop devices .35
6.4 Remote system control .35
7 Hydrogen supply safety and operation .36
7.1 On site generation .36
7.1.1 Hydrogen generators using water electrolysis process .36
7.1.2 Hydrogen generators using fuel processing technologies .36
7.2 Hydrogen delivery .36
7.2.1 Gaseous hydrogen supply by tube trailers and multiple element gas
containers (MEGC) .36
7.2.2 Liquid hydrogen supply .37
7.3 Pipeline .39
8 Hydrogen dispensing .39
8.1 Dispensing description .39
8.1.1 Dispenser components .40
8.1.2 Dispenser sensors location .40
8.1.3 Ambient temperature range of fuelling .40
8.2 Hydrogen FCEV fuelling .41
8.2.1 Reference fuelling limits of FCEV vehicles .41
8.2.2 Fuelling process control .41
8.2.3 Manual control of dispensing.44
8.2.4 Pressure integrity check (leak check) .44
8.2.5 Metering .44
8.2.6 Maximum flow rate and pressure drop .44
8.2.7 Flow control and isolation .44
8.3 Dispenser safety devices .44
8.3.1 General considerations .44
8.3.2 Dispensing emergency shutdown .45
8.3.3 Over-pressure protection .45
8.3.4 Dispenser temperature control faults .46
8.3.5 Limitation of hydrogen released in case of fuelling line break .46
8.3.6 Process control failure .46
8.3.7 Shutdown in case of breakaway activation .46
8.3.8 Physical disturbance of the dispenser .46
8.3.9 Hazardous area around the dispenser .47
8.4 Hydrogen quality .47
8.5 Hydrogen quality control .47
8.5.1 General.47
8.5.2 Dispenser fuel filters .48
9 Equipment and components .48
9.1 General .48
9.1.1 General equipment recommendations .48
9.1.2 Material hydrogen compatibility .48
9.1.3 Hydrogen and material compatibility at cryogenic temperatures.49
9.1.4 Other material recommendations .49
9.2 Piping carrying gaseous hydrogen .49
9.2.1 General.49
9.2.2 Piping, fittings, valves, regulator for cryogenic service .49
9.3 Hydrogen storage recommendations .50
9.3.1 Gaseous hydrogen storage vessels .50
9.3.2 Hydrogen storage siting recommendations .50
9.4 Hydrogen compressors .52
9.4.1 General.52
9.4.2 Vibration and movement .52
9.4.3 Control and monitoring .52
9.5 Cryogenic pumps .53
9.5.1 General.53
9.5.2 High pressure vaporizer .54
9.6 Pressure relief devices for gaseous hydrogen systems .54
9.7 Valves for gaseous hydrogen .55
iv © ISO 2016 – All rights reserved

9.8 Instruments for gaseous hydrogen .55
9.9 Filters for gaseous hydrogen .55
9.10 Dispensers .56
9.10.1 Location and protection of dispensers .56
9.10.2 Fuelling pad .56
9.10.3 Dispenser system design .56
9.10.4 Dispenser fuelling assembly .58
9.11 Hose assembly .60
9.11.1 Rated operating conditions .60
9.11.2 Hose assembly design .60
9.11.3 Hose assembly type testing and production testing .60
9.11.4 Venting hose assembly . .60
9.12 Fuelling connector (nozzle) general design and assembly .61
9.12.1 General design and assembly .61
9.12.2 Depressurization of nozzles .61
9.13 Hose breakaway device general design and assembly .61
9.13.1 Rated operating conditions .61
9.13.2 Breakaway durability .61
9.14 Gaseous hydrogen vent systems .61
9.14.1 General.61
9.14.2 Piping design .61
9.14.3 Flame arrestors .62
9.14.4 Vent outlet .62
9.14.5 Maximum flow rate calculation .62
9.14.6 Piping diameter and exit velocity .63
9.14.7 Maximum pressure drop .63
9.15 Pneumatics .63
9.16 Hydrogen purifier .63
10 Electrical safety .64
10.1 General .64
10.1.1 Overview of electrical hazards.64
10.1.2 Components .65
10.1.3 Site interconnections to and/or between equipment assemblies .65
10.1.4 Electrical grounding .65
10.1.5 Lightning protection .65
10.2 Hazardous areas (potentially explosive atmospheres) .66
10.2.1 General.66
10.2.2 Protection requirements for electrical equipment within hazardous
(classified) areas .66
10.2.3 Other equipment in hazardous (classified) areas .67
10.2.4 Areas adjacent to hazardous areas .67
10.2.5 Protection from ignition due to accumulation of static charge .67
10.3 Electromagnetic compatibility and interference (EMC) .68
10.3.1 General.68
10.3.2 Industrial (EMC) environments .68
10.3.3 Residential, commercial, and light-industrial (EMC) environments.68
11 Markings .69
11.1 General .69
11.2 Warning signs .69
11.3 Functional identification .70
11.4 Marking of equipment (data plate) .70
11.5 Reference designations .71
11.6 Emergency contact information .71
12 Technical documentation .72
12.1 General .72
12.2 Information to be provided .72
12.3 Recommendations applicable to all documentation .73
12.4 Installation documents .73
12.4.1 General.73
12.4.2 Installation documentation for hazardous (classified) areas .74
12.4.3 Venting .74
12.4.4 Seismic documentation .74
12.4.5 Handling and lifting documentation .75
12.5 Overview diagrams and function diagrams .75
12.6 Circuit diagrams .75
12.7 Flow (P&ID) diagrams .75
12.8 Fuelling station operating manual .76
12.9 Hydrogen fuelling station dispenser operation instructions .76
12.10 Maintenance manual .76
12.11 Service manual .76
12.12 Parts list .76
12.13 Technical file .77
13 Station inspection and tests .77
13.1 General .77
13.2 Minimum hydrogen fuelling station acceptance inspection .78
13.2.1 General.78
13.2.2 Minimum hydrogen fuelling station acceptance testing .78
13.2.3 Pressure test .79
13.2.4 Leak test .79
13.2.5 Electrical testing .80
13.2.6 Communications test .81
13.2.7 Safety and performance functional testing of the hydrogen fueling station .81
13.3 Minimum periodic hydrogen fuelling station inspection and test .82
Annex A (informative) Safety distances definition and basic principles .87
Annex B (informative) Proposal for hydrogen fuelling verification of the SAE J2601
fuelling protocol .93
Annex C (informative) Example matrices for guidance for hydrogen quality control .104
Annex D (informative) Pressure level definitions for the compressed hydrogen storage
system and fuelling station dispensers.112
Annex E (informative) Examples of vehicular impact protection measures .113
Bibliography .115
vi © ISO 2016 – All rights reserved

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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the World Trade Organization (WTO)
principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword – Supplementary
information.
The committee responsible for this document is ISO/TC 197, Hydrogen technologies.
ISO/TS 19880-1 has been prepared with the ultimate goal of developing an International Standard and
it replaces ISO/TS 20100:2008, on the same subject, which was withdrawn in 2015.
A list of all parts in the ISO 19880 series can be found on the ISO website.
viii © ISO 2016 – All rights reserved

TECHNICAL SPECIFICATION ISO/TS 19880-1:2016(E)
Gaseous hydrogen — Fuelling stations —
Part 1:
General requirements
1 Scope
This document recommends the minimum design characteristics for safety and, where appropriate,
for performance of public and non-public fuelling stations that dispense gaseous hydrogen to light duty
land vehicles (e.g. Fuel Cell Electric Vehicles).
NOTE These recommendations are in addition to applicable national regulations and codes, which can
prohibit certain aspects of this document.
This document is applicable to fuelling for light duty hydrogen land vehicles, but it can also be used as
guidance for fuelling buses, trams, motorcycles and fork-lift truck applications, with hydrogen storage
capacities outside of current published fuelling protocol standards, such as SAE J2601.
Residential applications to fuel land vehicles and non-public demonstration fuelling stations are not
included in this Technical Specification.
This Technical Specification provides guidance on the following elements of a fuelling station (see
Figure 1 and Figure 2):
— hydrogen production/delivery system
— delivery of hydrogen by pipeline, trucked in gaseous and/or liquid hydrogen, or metal hydride
storage trailers;
— on-site hydrogen generators using water electrolysis process or hydrogen generators using fuel
processing technologies;
— liquid hydrogen storage;
— hydrogen purification systems, as applicable;
— compression
— gaseous hydrogen compression;
— pumps and vaporizers;
— gaseous hydrogen buffer storage;
— pre-cooling device;
— gaseous hydrogen dispensers.
Figure 1 — Example of typical elements in a hydrogen fuelling station, including the
hydrogen supply
Figure 2 — Image of an example hydrogen fuelling station
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.
There are no normative references in this document.
2 © ISO 2016 – All rights reserved

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
accessory
device with an operational function
3.2
authority having jurisdiction
AHJ
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
breakaway device
device installed on a dispensing hose that separates when a given pull force is applied and closes the flow
of hydrogen to prevent gas leakage and protect the dispenser from damage from vehicles driving away
3.5
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
3.6
control system
system which responds to input signals from the process and/or from an operator and generates output
signals causing the process to operate in the desired manner
Note 1 to entry: A separate safety instrumented system (SIS), typically with a greater reliability than the more
basic process control system (BPCS), may be required, according to the manufacturer’s risk assessment, to
respond solely to safety critical alarms. Further information is provided in IEC 61508 and 61511.
3.7
connector
joined assembly of nozzle and receptacle which permits the transfer of hydrogen
[SOURCE: ISO 17268:2012, 3.1]
3.8
dispenser
parts of the pressurised-gas fuelling station via which the pressurised gas is dispensed to vehicles
Note 1 to entry: As an example, the dispenser may include a dispenser cabinet, gas flow meter, a fueling hose and
fueling nozzle attachments.
3.9
dispenser cabinet
protective housing that encloses process piping and may also enclose measurement, control and
ancillary dispenser equipment
3.10
dispensing system
system comprising all equipment necessary to carry out the vehicle fuelling operation, downstream of
the hydrogen supply system
3.11
enclosure
protective housing that may enclose, or partially enclose, equipment in order to protect it from the
environment, provide noise attenuation, or provide safety to the areas surrounding the equipment
3.12
frequency
rate of occurrence of events, e.g., how many time the event occurs in a specified time or number of
opportunities
3.13
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
3.14
fitting
connector used to join any pressure retaining components in the system
3.15
forecourt
surfaced area where vehicle dispensing operations are conducted including the fuelling pad and any
area underneath a canopy
3.16
fuel temperature
temperature of the hydrogen fuel, measured less than 1 m upstream of the dispenser hose breakaway
3.17
fuelling assembly
part of the dispenser providing the interface between the hydrogen fuelling station and the vehicle
- an assembly consisting of a breakaway device, a hose(s), a nozzle and connectors between these
components
3.18
fuelling hose
flexible conduit used for dispensing gaseous hydrogen to vehicles through a fuelling nozzle
3.19
fuelling pad
area adjacent to the hydrogen dispensers, where customers park their vehicles for fuelling
3.20
fuelling station
facility for the dispensing of compressed hydrogen vehicle fuel, often referred to as a hydrogen fuelling
station (HRS) or hydrogen filling station, including the supply of hydrogen, and hydrogen compression,
storage and dispensing systems
3.21
standalone
independent facility for the dispensing of compressed hydrogen only
Note 1 to entry: This is a type of fuelling station (3.20).
4 © ISO 2016 – All rights reserved

3.22
integrated
facility for the dispensing of compressed hydrogen integrated into an existing, or new build,
conventional fuelling station
Note 1 to entry: This is a type of fuelling station (3.20).
3.23
fuelling station operator
person or organisation responsible for the safe operation, maintenance and housekeeping of the
fuelling station
3.24
guard
part of a machine specially used to provide protection by means of a physical barrier
Note 1 to entry: Depending on its construction, a guard may be called casing, cover, screen, door, enclosed
guard, etc.
3.25
harm
physical injury or damage to the health of people, or damage to property or the environment
[SOURCE: ISO/IEC Guide 51:2014, 3.1]
3.26
harmonised standard
European standard devel
...