Gaseous hydrogen -- Fuelling stations

This document specifies the requirements for wire or textile reinforced hoses and hose assemblies suitable for dispensing hydrogen up to 70 MPa nominal working pressure, in the operating temperature range of −40 °C to 65 °C. This document contains safety requirements for material, design, manufacture and testing of gaseous hydrogen hose and hose assemblies for hydrogen fuelling stations. Hoses and hose assemblies excluded from the scope of this document are the following: 1) those used as part of a vehicle high pressure on-board fuel storage system, 2) those used as part of a vehicle low pressure fuel delivery system, and 3) flexible metal hoses. NOTE 1 This document was developed primarily for hoses and hose assemblies for dispensing high pressure hydrogen from refuelling dispensers to hydrogen vehicles. Requirements for hoses used to deliver hydrogen from a transportable vessel (e.g. trailer) into a buffer storage of a station are addressed in ISO 16964. NOTE 2 Hose assemblies include the hose with connectors on each end (see Figure 1). Each connector has two basic functional elements that are addressed as described below: 1) Coupling to hose. This function is defined by requirements and verified (along with the hose itself) by performance-based tests in this document. 2) Fitting for transition and connection to the piping system or equipment. This function is addressed by reference to appropriate hydrogen equipment standards and piping codes.

titre manque

General Information

Status
Published
Publication Date
17-Nov-2019
Current Stage
9092 - International Standard to be revised
Start Date
01-Feb-2021
Ref Project

Buy Standard

Standard
ISO 19880-5:2019 - Gaseous hydrogen -- Fuelling stations
English language
27 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (sample)

INTERNATIONAL ISO
STANDARD 19880-5
First edition
2019-11
Gaseous hydrogen — Fuelling
stations —
Part 5:
Dispenser hoses and hose assemblies
Reference number
ISO 19880-5:2019(E)
ISO 2019
---------------------- Page: 1 ----------------------
ISO 19880-5:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 19880-5:2019(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 2

3 Terms and definitions ..................................................................................................................................................................................... 3

4 Classification ............................................................................................................................................................................................................ 5

5 Materials and construction ....................................................................................................................................................................... 6

5.1 General ........................................................................................................................................................................................................... 6

5.2 Lining ............................................................................................................................................................................................................... 6

5.3 Reinforcement ......................................................................................................................................................................................... 6

5.4 Cover ................................................................................................................................................................................................................ 6

5.5 Static electricity dissipation ........................................................................................................................................................ 6

5.5.1 General...................................................................................................................................................................................... 6

5.5.2 External surface ................................................................................................................................................................ 6

5.5.3 Internal surface ................................................................................................................................................................. 6

6 Dimensions and tolerances ....................................................................................................................................................................... 7

7 Performance requirements and testing ....................................................................................................................................... 7

7.1 General ........................................................................................................................................................................................................... 7

7.2 Leakage test ............................................................................................................................................................................................... 7

7.2.1 General...................................................................................................................................................................................... 7

7.2.2 Method A ................................................................................................................................................................................. 7

7.2.3 Method B ................................................................................................................................................................................. 8

7.3 Hydrostatic strength .......................................................................................................................................................................... 8

7.3.1 Proof pressure test ......................................................................................................................................................... 8

7.3.2 Ultimate strength............................................................................................................................................................. 8

7.4 Electrical conductivity ...................................................................................................................................................................... 8

7.5 Tensile test of hose assembly ..................................................................................................................................................... 9

7.5.1 General...................................................................................................................................................................................... 9

7.5.2 Test method .......................................................................................................................................................................... 9

7.6 Vertical load strength ........................................................................................................................................................................ 9

7.6.1 General...................................................................................................................................................................................... 9

7.6.2 Test method .......................................................................................................................................................................10

7.7 Torsion strength ......... .........................................................................................................................................................................10

7.7.1 General...................................................................................................................................................................................10

7.7.2 Test method .......................................................................................................................................................................11

7.8 Pressure cycle test (Hydraulic-pressure impulse test) .....................................................................................12

7.8.1 General...................................................................................................................................................................................12

7.8.2 Apparatus ............................................................................................................................................................................12

7.8.3 Test fluid ...............................................................................................................................................................................12

7.8.4 Test temperature ..........................................................................................................................................................12

7.8.5 Test piece .............................................................................................................................................................................12

7.8.6 Procedure ............................................................................................................................................................................13

7.9 Hydrogen impulse test ..................................................................................................................................................................14

7.10 Corrosion test ........................................................................................................................................................................................14

7.10.1 General...................................................................................................................................................................................14

7.10.2 Test conditions................................................................................................................................................................14

7.11 Minimum bend radius ...................................................................................................................................................................15

7.12 Hose permeation ................................................................................................................................................................................15

7.12.1 General...................................................................................................................................................................................15

7.12.2 Test Method A ..................................................................................................................................................................15

7.12.3 Test Method B ..................................................................................................................................................................16

7.13 Ozone resistance.................................................................................................................................................................................16

© ISO 2019 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 19880-5:2019(E)

7.14 Ultraviolet light and water exposure test ......... .............................................................................................................16

7.14.1 Applicability and verification .............................................................................................................................16

7.14.2 Test conditions................................................................................................................................................................16

7.14.3 Length of exposure ........................................................................................................................................... ...........16

7.15 Crush test ..................................................................................................................................................................................................16

7.15.1 General...................................................................................................................................................................................16

7.15.2 Test method .......................................................................................................................................................................17

7.16 Abrasion resistance test ...............................................................................................................................................................17

7.17 Marking material legibility ........................................................................................................................................................17

7.17.1 General...................................................................................................................................................................................17

7.17.2 Test method .......................................................................................................................................................................17

7.18 Electrical properties of lining material ...........................................................................................................................17

7.18.1 General...................................................................................................................................................................................17

7.18.2 Dielectric breakdown voltage ............................................................................................................................17

7.18.3 Volume resistivity ........................................................................................................................................................17

7.18.4 Criteria of electric properties of lining materials .............................................................................18

8 Marking .......................................................................................................................................................................................................................18

8.1 General ........................................................................................................................................................................................................18

8.2 Hose assemblies ..................................................................................................................................................................................18

8.3 Hose ...............................................................................................................................................................................................................19

8.4 Hose end fittings or couplings ................................................................................................................................................19

9 Instruction manual .........................................................................................................................................................................................19

9.1 General ........................................................................................................................................................................................................19

9.2 Selection.....................................................................................................................................................................................................19

9.3 Installation ...............................................................................................................................................................................................20

9.4 Inspection and maintenance ....................................................................................................................................................20

9.5 Safety precautions and usage ..................................................................................................................................................20

10 Test report ................................................................................................................................................................................................................20

Annex A (normative) Type tests and routine tests .............................................................................................................................22

Annex B (informative) Production acceptance tests .........................................................................................................................23

Annex C (informative) Hydrogen impulse test ........................................................................................................................................24

Bibliography .............................................................................................................................................................................................................................27

iv © ISO 2019 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 19880-5:2019(E)
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 of the voluntary nature of standards, 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 www .iso .org/

iso/ foreword .html.
This document was prepared by ISO/TC 197, Hydrogen technologies.
A list of all parts in the ISO 19880 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
© ISO 2019 – All rights reserved v
---------------------- Page: 5 ----------------------
ISO 19880-5:2019(E)
Introduction

This document promotes the implementation of performance-based testing for components of

dispensing systems and fuelling stations that are based on proven engineering principles, research

and the combined expertise of gas utilities, fuel providers, manufacturers, users, and others having

specialized experience.

The successful commercialization of hydrogen vehicle technologies requires codes and standards

pertaining to fuelling stations, vehicle fuel system components, and the global homologation of standards

requirements for technologies with the same end use. Essentially this will allow manufacturers to

achieve economies of scale by producing one product for use globally.

International harmonization contributes to reducing technical barriers and stimulates related markets.

A series of documents that address hydrogen-fuelled vehicles and fuelling stations is being developed.

These documents will provide internationally homologized minimum safety performance criteria at

the component level, thus providing a foundation to build a safe “fuelling system”.

This document was developed using the standard ANSI/CSA HGV 4.2-2013.

This document was developed based on five pressure classes of wire or textile reinforced hoses and

hose assemblies suitable for use with gaseous hydrogen for hydrogen dispensing. This is based on

technologies in use at the time of the development of the requirements.

In the future, other types and classes of hoses and hose assemblies will need to be evaluated to

determine the suitability of requirements in this document.

This document applies to newly manufactured hoses and hose assemblies for connecting a dispenser to

a high pressure fuelling nozzle.

A nozzle vent hose is included in this document; however the pressure rating may be lower than the

nozzle rating, based on the nozzle and dispenser design.
For general hydrogen safety information, see ISO/TR 15916.
vi © ISO 2019 – All rights reserved
---------------------- Page: 6 ----------------------
INTERNATIONAL STANDARD ISO 19880-5:2019(E)
Gaseous hydrogen — Fuelling stations —
Part 5:
Dispenser hoses and hose assemblies
1 Scope

This document specifies the requirements for wire or textile reinforced hoses and hose assemblies

suitable for dispensing hydrogen up to 70 MPa nominal working pressure, in the operating temperature

range of −40 °C to 65 °C.

This document contains safety requirements for material, design, manufacture and testing of gaseous

hydrogen hose and hose assemblies for hydrogen fuelling stations.

Hoses and hose assemblies excluded from the scope of this document are the following:

1) those used as part of a vehicle high pressure on-board fuel storage system,
2) those used as part of a vehicle low pressure fuel delivery system, and
3) flexible metal hoses.

NOTE 1 This document was developed primarily for hoses and hose assemblies for dispensing high pressure

hydrogen from refuelling dispensers to hydrogen vehicles. Requirements for hoses used to deliver hydrogen

from a transportable vessel (e.g. trailer) into a buffer storage of a station are addressed in ISO 16964.

NOTE 2 Hose assemblies include the hose with connectors on each end (see Figure 1). Each connector has two

basic functional elements that are addressed as described below:

1) Coupling to hose. This function is defined by requirements and verified (along with the hose itself) by

performance-based tests in this document.

2) Fitting for transition and connection to the piping system or equipment. This function is addressed by

reference to appropriate hydrogen equipment standards and piping codes.
© ISO 2019 – All rights reserved 1
---------------------- Page: 7 ----------------------
ISO 19880-5:2019(E)
Key
1 hose assembly
2 mechanical joint
3 fitting
4 nipple
5 coupling
6 crimped socket
7 hose
Figure 1 — Hose assembly and fitting
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.

ISO 1402, Rubber and plastics hoses and hose assemblies — Hydrostatic testing

ISO 4671, Rubber and plastics hoses and hose assemblies — Methods of measurement of the dimensions of

hoses and the lengths of hose assemblies

ISO 4080:2009, Rubber and plastics hoses and hose assemblies — Determination of permeability to gas

ISO 6802, Rubber or plastics hoses and hose assemblies — Hydraulic impulse test with flexing

ISO 6803:2017, Rubber or plastics hoses and hose assemblies — Hydraulic-pressure impulse test

without flexing

ISO 7326:2016, Rubber and plastics hoses — Assessment of ozone resistance under static conditions

ISO 8031:2009, Rubber and plastics hoses and hose assemblies — Determination of electrical resistance

and conductivity
ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary

ISO 8331, Rubber and plastics hoses and hose assemblies — Guidelines for selection, storage, use and

maintenance
ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests
2 © ISO 2019 – All rights reserved
---------------------- Page: 8 ----------------------
ISO 19880-5:2019(E)
ISO 15649, Petroleum and natural gas industries — Piping
ISO 16964, Gas cylinders — Flexible hoses assemblies — Specification and testing
ISO 17268, Gaseous hydrogen land vehicle refuelling connection devices

ISO 19880-1 , Gaseous hydrogen — Fuelling stations — Part 1: General requirements

ISO 30013, Rubber and plastics hoses — Methods of exposure to laboratory light sources — Determination

of changes in colour, appearance and other physical properties

IEC 60243-1, Electric strength of insulating materials — Test methods — Part 1: Tests at power frequencies

IEC 62631-3-1, Dielectric and resistive properties of solid insulating materials — Part 3-1: Determination

of resistive properties (DC methods) — Volume resistance and volume resistivity — General method

3 Terms and definitions

For the purpose of this document, the terms and definitions given in ISO 8330, ISO 19880-1 and the

following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
connector

matching parts (such as male and female parts) that can be put together to form a "connection" which

permits the transfer of fluids, electric power, or control signals
Note 1 to entry: Fittings (3.4) are a type of connector used in piping systems.

Note 2 to entry: Examples of connectors commonly used in hydrogen systems are as follows:

a) The fuelling nozzle “connector” mates with the receptacle “connector” on the vehicle to form the connection

for transfer of compressed hydrogen between the dispenser and the vehicle, as defined in ISO 17268 for this

specific application.

b) The hose assemblies have connectors on each end that allow coupling (3.2) to the hoses and connection to

the piping system (e.g. hose breakaway device or fuelling nozzle).

c) Control systems often use electrical connectors to allow rapid and secure assembly or replacement.

3.2
coupling

integrated structure of nipple and socket with end portion of a hose crimped together as shown in

Figure 1
3.3
dispenser hose
fuelling hose

hose assembly (3.5) used for dispensing gaseous hydrogen to vehicles through a nozzle

Note 1 to entry: See Figure 2.
1) Under preparation.
© ISO 2019 – All rights reserved 3
---------------------- Page: 9 ----------------------
ISO 19880-5:2019(E)
Key
1 dispenser
2 hose breakaway device (ISO 19880-3)
3 fitting (3.4)
4 hose assembly (3.5)
5 connector (3.1)
6 nozzle (ISO 17268)
7 receptacle on vehicle (ISO 17268)
8 vehicle
Figure 2 — Components connecting a dispenser to a vehicle
3.4
fitting

connector (3.1) used to join any pressure retaining components in the system, and in the case of the

hose assembly (3.5), device, usually made of metal, attached to the end of a hose to facilitate connection

to equipment or other hose shown in Figure 1

Note 1 to entry: Fittings can be used in a finished hose assembly; however requirements for fittings are out of

scope of this document.
3.5
hose assembly

assembly which includes the hose and end connections, including any necessary fittings (3.4), bend

restrictors, and appropriate markings
3.6
nozzle vent hose

hose used to depressurize the fuelling nozzle and vent the hydrogen to an approved location

3.7
minimum bend radius
smallest specified radius to which a hose may be bent in service
Note 1 to entry: The minimum bend radius is shown in Table 3.
4 © ISO 2019 – All rights reserved
---------------------- Page: 10 ----------------------
ISO 19880-5:2019(E)
3.8
pressure rating

maximum pressure at which it is permissible to operate a component as specified by the manufacturer

at the maximum temperature expected during service
3.9
proof pressure

pressure applied during a non-destructive test and held for a specified period of time to prove the

integrity of the construction
4 Classification

This clause applies to newly manufactured hoses and hose assemblies for dispenser hoses connecting

the dispenser to the fuelling nozzle supply port.

Hoses and couplings shall meet the requirements in this document with end fittings selected by the

manufacturer, customer, or testing agency as required to connect to the test equipment. Fittings shall

be consistent with the requirements of the appropriate documents in the ISO 19880-series, ISO 17268,

or ISO 15649.

The end fitting of the hose assembly may be changed to another type that meets requirements defined

above without the need to
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.