SIST EN 17533:2020

Gaseous hydrogen - Cylinders and tubes for stationary storage

This International Standard specifies the requirements for design, manufacture and testing of cylinders, tubes, and other pressure vessels of steel, stainless steel, aluminium alloys or of non-metallic construction material intended for the stationary storage of gaseous hydrogen of up to a maximum water capacity of 10 000 l and a maximum allowable working pressure not exceeding 110 MPa, of seamless metallic construction (Type 1) or of composite construction (Types 2, 3 and 4) without any non-seamless load sharing metallic components, hereafter referred to as pressure vessels.
For Existing design already qualified for other applications (e.g. transportable applications) follow the requirements of Annex E.
This International Standard is not intended as a specification for pressure vessels used for solid, liquid hydrogen or hybrid cryogenic-high pressure hydrogen storage applications.

Gasförmiger Wasserstoff - Flaschen und Großflaschen zur ortsfesten Lagerung

Hydrogène gazeux - Bouteilles et tubes pour stockage stationnaire

Plinasti vodik - Jeklenke in velike jeklenke za stacionarno shranjevanje

General Information

• Status: Published
• Public Enquiry End Date: 06-May-2018
• Publication Date: 29-Jul-2020
• ICS: 23.020.35 - Gas cylinders
• ICS: 71.100.20 - Gases for industrial application
• Technical Committee: TLP - Pressure vessels
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 27-Jul-2020
• Due Date: 01-Oct-2020
• Completion Date: 30-Jul-2020
• Ref Project: EN 17533:2020 - Gaseous hydrogen - Cylinders and tubes for stationary storage

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 17533:2020
01-september-2020
Plinasti vodik - Jeklenke in velike jeklenke za stacionarno shranjevanje
Gaseous hydrogen - Cylinders and tubes for stationary storage
Gasförmiger Wasserstoff - Flaschen und Großflaschen zur ortsfesten Lagerung
Hydrogène gazeux - Bouteilles et tubes pour stockage stationnaire
Ta slovenski standard je istoveten z: EN 17533:2020
ICS:
23.020.35 Plinske jeklenke Gas cylinders
71.100.20 Industrijski plini Gases for industrial
application
SIST EN 17533:2020 en,fr,de

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

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SIST EN 17533:2020
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SIST EN 17533:2020
EN 17533
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2020
EUROPÄISCHE NORM
ICS 23.020.30; 71.100.20
English Version
Gaseous hydrogen - Cylinders and tubes for stationary
storage

Hydrogène gazeux - Bouteilles et tubes pour stockage Gasförmiger Wasserstoff - Flaschen und Großflaschen

stationnaire zur ortsfesten Lagerung
This European Standard was approved by CEN on 13 August 2019.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17533:2020 E

worldwide for CEN national Members.
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SIST EN 17533:2020
EN 17533:2020 (E)
Contents

European foreword ............................................................................................................................... 5

Introduction ............................................................................................................................................. 6

1 Scope ............................................................................................................................................ 7

2 Normative references ............................................................................................................ 7

3 Terms, definitions and symbols ......................................................................................... 9

3.1 Terms and definitions ............................................................................................................ 9

3.2 Symbols .....................................................................................................................................13

4 Specified service conditions ..............................................................................................14

4.1 Maximum allowable working pressure .........................................................................14

4.2 Maximum allowable energy content ..............................................................................14

4.3 Maximum and minimum allowable temperature ......................................................14

4.4 Pressure cycle life ..................................................................................................................14

4.5 Shallow pressure cycle life .................................................................................................14

4.6 Effective pressure cycle count and maximum number of pressure cycles

allowed in service ..................................................................................................................14

4.7 Service life ................................................................................................................................15

5 Additional service conditions ...........................................................................................15

5.1 Environmental conditions ..................................................................................................15

5.2 Fire conditions ........................................................................................................................15

6 Information to be recorded ...............................................................................................16

6.1 General ......................................................................................................................................16

6.2 Statement of service .............................................................................................................16

6.3 Design drawings and information ...................................................................................17

6.4 Stress analysis report ...........................................................................................................17

6.5 Material property data ........................................................................................................17

6.6 Manufacturing data ...............................................................................................................18

6.7 Retention of records .............................................................................................................18

7 Material properties ...............................................................................................................18

7.1 Compatibility ...........................................................................................................................18

7.2 Steel ............................................................................................................................................18

7.3 Stainless steels ........................................................................................................................18

7.4 Aluminium alloys ...................................................................................................................18

7.5 Fibre material .........................................................................................................................18

7.6 Resins .........................................................................................................................................19

7.7 Plastic liner material ............................................................................................................19

8 Requirements for new designs .........................................................................................19

8.1 General considerations .......................................................................................................19

8.2 Construction and workmanship .......................................................................................22

8.3 Qualification of new designs ..............................................................................................24

8.4 Production and batch tests ................................................................................................34

8.5 Markings ...................................................................................................................................38

8.6 Preparation for dispatch .....................................................................................................39

9 Requirements for existing design standards ...............................................................40

Annex A (normative) Test methods and acceptance criteria .............................................41

A.1 Hydrogen compatibility tests ............................................................................................41

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SIST EN 17533:2020
EN 17533:2020 (E)

A.2 Hydrogen sensitivity tests ..................................................................................................41

A.3 Tensile properties of plastics ............................................................................................44

A.4 Softening temperature of plastics ...................................................................................44

A.5 Resin properties tests ..........................................................................................................44

A.6 Hydrostatic burst pressure test .......................................................................................44

A.7 Ambient temperature pressure cycling for cycle life definition ..........................45

A.8 Leak-before-break (LBB) test ...........................................................................................46

A.9 Bonfire test...............................................................................................................................46

A.10 High strain impact test.........................................................................................................47

A.11 Accelerated stress rupture test ........................................................................................47

A.12 Extreme temperature pressure cycling .........................................................................47

A.13 Permeation test ......................................................................................................................48

A.14 Boss torque test ......................................................................................................................48

A.15 Hydrogen gas cycling test ...................................................................................................48

A.16 Hardness test ...........................................................................................................................49

A.17 Hydraulic test ..........................................................................................................................49

A.18 Leak test ....................................................................................................................................49

A.19 Coating tests ............................................................................................................................49

A.20 Coating batch tests ................................................................................................................50

A.21 Impact damage test ...............................................................................................................50

Annex B (normative) Use of existing and approved design standards for stationary

storage .......................................................................................................................................52

B.1 General ......................................................................................................................................52

B.2 Requirements ..........................................................................................................................52

B.3 Marking .....................................................................................................................................55

B.4 Certificate .................................................................................................................................55

B.5 Examples of calculation for MAWP ..................................................................................55

B.6 Cycle life calculation .............................................................................................................56

Annex C (informative) Verification of stress ratios using strain gauges ........................57

Annex D (informative) Non-destructive examination (NDE) defect size by flawed

pressure vessel cycling ........................................................................................................58

Annex E (informative) Manufacturer’s instructions for handling, use and inspection

of pressure vessels ................................................................................................................59

E.1 General ......................................................................................................................................59

E.2 Distribution .............................................................................................................................59

E.3 Reference to existing codes, standards and regulations .........................................59

E.4 Pressure vessel handling ....................................................................................................59

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SIST EN 17533:2020
EN 17533:2020 (E)

E.5 Installation ...............................................................................................................................59

E.6 Use of pressure vessels ........................................................................................................60

E.7 In-service inspection ............................................................................................................60

Annex F (informative) Fatigue life evaluation using Goodman diagrams .....................61

F.1 Purpose .....................................................................................................................................61

F.2 Developing an S-N diagram ................................................................................................61

F.3 Equivalent pressure cycling ...............................................................................................62

F.4 Developing a Goodman diagram ......................................................................................62

Annex G (informative) Optional bonfire test ............................................................................66

G.1 General ......................................................................................................................................66

G.2 Cylinder test.............................................................................................................................66

G.3 PRD test .....................................................................................................................................67

G.4 Vent test ....................................................................................................................................68

G.5 System assessment ................................................................................................................68

G.6 Generation of a safety envelope and actual cylinder/PRD performance ..........68

Annex H (informative) Information on factor of safety ........................................................70

H.1 Purpose .....................................................................................................................................70

H.2 Background ..............................................................................................................................70

H.3 Recommended safety factor ..............................................................................................70

H.4 Discussion ................................................................................................................................70

H.5 Conclusions ..............................................................................................................................72

H.6 Recommendations .................................................................................................................72

H.7 Further reading ......................................................................................................................72

Annex I (informative) Guidance for evaluation of pressure vessels designed

according to other standards ............................................................................................73

Bibliography ..........................................................................................................................................76

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SIST EN 17533:2020
EN 17533:2020 (E)
European foreword
This document (EN 17533:2020) has been prepared by Technical Committee CEN/TC 23
“Transportable gas cylinders”, the secretariat of which is held by BSI.

This European Standard shall be given the status of a national standard, either by publication of

an identical text or by endorsement, at the latest by December 2020, and conflicting national

standards shall be withdrawn at the latest by December 2020.

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.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,

Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,

Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,

Switzerland, Turkey and the United Kingdom.
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SIST EN 17533:2020
EN 17533:2020 (E)
Introduction

As the use of gaseous hydrogen evolves from the chemical industry into various emerging

applications, such as fuel for fuel cells, internal combustion engines and other speciality hydrogen

applications, new requirements are foreseen for seamless and composite pressure vessels,

including higher number of pressure cycles.

Requirements covering pressure vessels for stationary storage of compressed gaseous hydrogen

are listed in this document and are mainly intended to maintain or improve the level of safety for

this application.
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SIST EN 17533:2020
EN 17533:2020 (E)
1 Scope

This document specifies the requirements for the design, manufacture and testing of standalone

or manifolded (for some specific tests such as bonfire) cylinders, tubes and other pressure vessels

of steel, stainless steel, aluminium alloys or of non-metallic construction material. These are

intended for the stationary storage of gaseous hydrogen of up to a maximum water capacity of

10 000 l and a maximum allowable working pressure not exceeding 110 MPa, of seamless metallic

construction (Type 1) or of composite construction (Types 2, 3 and 4), hereafter referred to as

pressure vessels.
This document is not applicable to Type 2 and 3 vessels with welded liners.

This document is not applicable to pressure vessels used for solid, liquid hydrogen or hybrid

cryogenic-high pressure hydrogen storage applications.

This document is not applicable to external piping which can be designed according to recognized

standards.
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 ISO 306, Plastics — Thermoplastic materials — Determination of Vicat softening temperature

(VST)

EN ISO 527-2, Plastics — Determination of tensile properties — Part 2: Test conditions for moulding

and extrusion plastics
EN ISO 1519, Paints and varnishes — Bend test (cylindrical mandrel)
EN ISO 2808, Paints and varnishes — Determination of film thickness

EN ISO 2812-1, Paints and varnishes — Determination of resistance to liquids — Part 1: Immersion

in liquids other than water
EN ISO 4624, Paints and varnishes — Pull-off test for adhesion

EN ISO 6272-2, Paints and varnishes — Rapid-deformation (impact resistance) tests — Part 2:

Falling-weight test, small-area indenter
EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method
EN ISO 7225, Gas cylinders — Precautionary labels

EN ISO 7866, Gas cylinders — Refillable seamless aluminium alloy gas cylinders — Design,

construction and testing
EN ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests

EN ISO 9809-1, Gas cylinders — Refillable seamless steel gas cylinders — Design, construction

and testing — Part 1: Quenched and tempered steel cylinders with tensile strength less than

1 100 MPa
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SIST EN 17533:2020
EN 17533:2020 (E)

EN ISO 9809-2, Gas cylinders — Refillable seamless steel gas cylinders — Design, construction and

testing — Part 2: Quenched and tempered steel cylinders with tensile strength greater than or equal

to 1 100 MPa

EN ISO 9809-3, Gas cylinders —Refillable seamless steel gas cylinders — Design, construction and

testing — Part 3: Normalized steel cylinders

ISO 9809-4, Gas cylinders — Refillable seamless steel gas cylinders — Design, construction and

testing — Part 4: Stainless steel cylinders with an Rm value of less than 1 100 MPa

EN ISO 11114-1, Gas cylinders — Compatibility of cylinder and valve materials with gas contents —

Part 1: Metallic materials

EN ISO 11114-2, Gas cylinders — Compatibility of cylinder and valve materials with gas contents —

Part 2: Non-metallic materials

EN ISO 11114-4, Transportable gas cylinders — Compatibility of cylinder and valve materials with

gas contents — Part 4: Test methods for selecting steels resistant to hydrogen embrittlement

ISO 11119-1, Gas cylinders — Refillable composite gas cylinders and tubes — Design, construction

and testing — Part 1: Hoop wrapped fibre reinforced composite gas cylinders and tubes up to 450 l

ISO 11119-2, Gas cylinders — Refillable composite gas cylinders and tubes — Design, construction

and testing — Part 2: Fully wrapped fibre reinforced composite gas cylinders and tubes up to 450 l

with load-sharing metal liners

ISO 11119-3, Gas cylinders — Refillable composite gas cylinders and tubes — Design, construction

and testing — Part 3: Fully wrapped fibre reinforced composite gas cylinders and tubes up to 450L

with non-load-sharing metallic or non-metallic liners

EN ISO 11120, Gas cylinders — Refillable seamless steel tubes of water capacity between 150 l and

3000 l — Design, construction and testing

EN ISO 11357-2, Plastics — Differential scanning calorimetry (DSC) — Part 2: Determination of

glass transition temperature

EN ISO 11439, Gas cylinders — High pressure cylinders for the on-board storage of natural gas as a

fuel for automotive vehicles
ISO 12108, Metallic materials — Fatigue testing — Fatigue crack growth method

EN ISO 14130, Fibre-reinforced plastic composites — Determination of apparent interlaminar shear

strength by short-beam method

EN ISO 16474-1, Paints and varnishes — Methods of exposure to laboratory light sources — Part 1:

General guidance

EN ISO 16474-3, Paints and varnishes — Methods of exposure to laboratory light sources — Part 3:

Fluorescent UV lamps

EN 13322-2, Transportable gas cylinders — Refillable welded steel gas cylinders — Design and

construction — Part 2: Stainless steel
ASTM D3170/D3170M - 14, Standard Test Method for Chipping Resistance of Coatings
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SIST EN 17533:2020
EN 17533:2020 (E)
ASTM E647, Standard Test Method for Measurement of Fatigue Crack Growth Rates
3 Terms, definitions and symbols
3.1 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:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1.1
autofrettage

pressure application procedure which strains the metal liner (3.1.13) past its yield point

sufficiently to cause permanent plastic deformation, resulting in the liner having compressive

stresses and the fibres having tensile stresses when at zero internal gauge pressure

3.1.2
autofrettage pressure

pressure within the overwrapped composite pressure vessel at which the required distribution

of stresses between the liner (3.1.13) and the composite overwrap (3.1.6) is established

3.1.3
batch of pressure vessels
batch of pressure liners

set of manufactured finished pressure vessels (3.1.10) or liners (3.1.13) subject to a manufacturing

quality pass/fail criterion based on the results of specified tests performed on a specified number

of units from that set
3.1.4
boss

dome shaped metallic component mounted on one end or on the two ends of a non-metallic liner

(3.1.13) with a neck providing an opening and/or an external element of mechanical support

3.1.5
burst pressure
highest pressure reached in a cylinder during a burst test
3.1.6
composite overwrap
combination of fibres (including steel wire) and matrix (3.1.15)
3.1.7
controlled tension winding

process used in manufacturing composite pressure vessels with metal liners (3.1.13) by which

compressive stresses in the liner and tensile stresses in the composite overwrap (3.1.6) at zero

internal pressure are obtained by winding the reinforcing fibres under controlled tension

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SIST EN 17533:2020
EN 17533:2020 (E)
3.1.8
cycle amplitude
ratio of pressure increase to maximum pressure in a pressure cycle (3.1.21)
Note 1 to entry: Cycle amplitude is expressed in %.
3.1.9
design change

change in the selection of structural materials or dimensional change exceeding the tolerances as

on the design drawings
3.1.10
finished pressure vessel

pressure vessel, which is ready for use, typical of normal production, complete with identification

marks and external coating including integral insulation specified by the manufacturer, but free

from non-integral insulation or protection

Note 1 to entry: In the framework of this document, a tube or a cylinder is a finished pressure vessel.

3.1.11
full cycle

cycle of pressure amplitude between the maximum allowable working pressure (MAWP) (3.1.17)

and 10 % of the MAWP
3.1.12
leakage
release of hydrogen through a crack, pore, or similar defect

Note 1 to entry: Permeation through the wall of a Type 4 pressure vessel that is less than the rates described

in A.13 is not considered a leakage.
3.1.13
liner

inner portion of the composite cylinder, comprising a metallic or non-metallic vessel, whose

purpose is both to contain the gas and transmit the gas pressure to the fibres
3.1.14
load-sharing liner

liner (3.1.13) that has a burst pressure (3.1.5) of at least 5 % of the minimum burst pressure of the

finished composite cylinder
3.1.15
matrix
material that is used to bind and hold the fibres in place
3.1.16
maximum allowable temperature

maximum temperature of any part of the pressure vessel for which it is designed (or intended to

be used if Annex B is followed)
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SIST EN 17533:2020
EN 17533:2020 (E)
3.1.17
maximum allowable working pressure
MAWP
design pressure

maximum pressure to which the component is designed to be subjected to and which is the basis

for determining the strength of the component under consideration
3.1.18
minimum allowable temperature

minimum temperature of any part of the pressure vessel for which it is designed (or intended to

be used if Annex B is followed)
3.1.19
operator
entity legally responsible for the use and maintenance of the vessel
3.1.20
pressure-activated pressure relief device
pressure-activated PRD

device designed to release pressure in order to prevent a rise in pressure above a specified value

due to emergency or abnormal conditions

Note 1 to entry: Pressure-activated PRDs may be either re-closing devices (such as valves) or non-re-closing

devices (such as rupture disks).
3.1.21
pressure cycle

pressure variation composed of one period of monotonic pressure increase up to a peak pressure

followed by one period of monotonic pressure decrease

Note 1 to entry: Pressure variations exclusively due to variations of ambient temperature are not counted

as pressure cycles.
3.1.22
pressure cycle life

maximum number of pressure cycles (3.1.21) in hydrogen service that the pressure vessel is

designed to withstand in service
3.1.23
pre-stress
process of applying autofrettage (3.1.1) or controlled tension winding (3.1.7)
3.1.24
service life

maximum period for which the pressure vessel is designed to be in service based on fatigue life

and stress rupture characteristics of co
...