ISO/TR 7470:2023

Gas cylinders — List of provisions

This document lists gas cylinders valve outlets in use. This document provides details of thread types and sizes. NOTE Complete descriptions of particular valve outlets are given in national standards.

Bouteilles à gaz — Inventaire des dispositions

General Information

• Status: Published
• Publication Date: 05-Jul-2023
• ICS: 23.020.30 - Pressure vessels, gas cylinders
• ICS: 23.020.35 - Gas cylinders
• Technical Committee: ISO/TC 58/SC 2 - Cylinder fittings
• Drafting Committee: ISO/TC 58/SC 2/WG 11 - Allocations of valve outlets
• Current Stage: 6060 - International Standard published
• Start Date: 06-Jul-2023
• Completion Date: 06-Jul-2023

Relations

• Revises: ISO/TR 7470:1988 - Valve outlets for gas cylinders — List of provisions which are either standardized or in use
• Effective Date: 04-Nov-2015

Standards Content (Sample)

TECHNICAL ISO/TR
REPORT 7470
Third edition
2023-07
Gas cylinders — List of provisions
Bouteilles à gaz — Inventaire des dispositions
Reference number
ISO/TR 7470:2023(E)
© ISO 2023

---------------------- Page: 1 ----------------------
ISO/TR 7470:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2023 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/TR 7470:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Valve outlets by countries and by threads . 1
iii
© ISO 2023 – All rights reserved

---------------------- Page: 3 ----------------------
ISO/TR 7470:2023(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 Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 2,
Cylinder fittings.
This third edition cancels and replaces the second edition (ISO/TR 7470:1988), which has been
technically revised.
The main changes are as follows:
— the tables have been provided in a spreadsheet available at:
https://standards.iso.org/iso/tr/7470/ed-1/en
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
iv
  © ISO 2023 – All rights reserved

---------------------- Page: 4 ----------------------
TECHNICAL REPORT ISO/TR 7470:2023(E)
Gas cylinders — List of provisions
1 Scope
This document lists gas cylinders valve outlets in use.
This document provides details of thread types and sizes.
NOTE Complete descriptions of particular valve outlets are given in national standards.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Valve outlets by countries and by threads
Table 1 lists the gas and the corresponding tabs in the spreadsheet available at: https:// standards .iso
.org/ iso/ tr/ 7470/ ed -1/ en, where the nominal dimensions, designations and references of valve outlets
found in national standards are presented by country and by thread type. All of the pressures are given
in bar. In case of doubt, refer to the applicable valve outlet standard.
NOTE The pressure ratings are taken from the standards. The pressure rating for compressed gas normally
corresponds to the working pressure of the gas cylinder and for liquefied gases to the test pressure of the gas
cylinder.
Table 1 — List of gas with the corresponding tabs
Gas UN number Valve outlets Valve outlets
by countries by threads
1,1 - DIFLUOROETHANE 1030 Table 1 Table 2
1,1,1,2-TETRAFLUOROETHANE (R134a) 3159 Table 3 Table 4
1,1,1-TRICHLOROTRIFLUOROETHANE Table 5 Table 6
1,1,2-TRICHLOROTRIFLUOROETHANE (R113) Table 7 Table 8
1, 1-DICHLOROTETRAFLUOROETHANE (R114a) Table 9 Table 10
1,1-DIFLUOROETHYLENE 1959 Table 11 Table 12
1, 2-DIBROMOTETRAFLUOROETHANE (R114B2) Table 13 Table 14
1,2-DICHLORODIFLUOROETHYLENE Table 15 Table 16
1,2-DICHLOROETHYLENE (R1130) 1150 Table 17 Table 18
1, 2-DICHLOROHEXAFLUOROCYCLOBUTANE (RC316) Table 19 Table 20
1,3-BUTADIENE-1,3 1010 Table 21 Table 22
1.1.1TRIFLUOROETHANE OR R143A 2035 Table 23 Table 24
1
© ISO 2023 – All rights reserved

---------------------- Page: 5 ----------------------
ISO/TR 7470:2023(E)
TTabablele 1 1 ((ccoonnttiinnueuedd))
Gas UN number Valve outlets Valve outlets
by countries by threads
1-CHLORO 1,1-DIFLUORETHANE 2517 Table 25 Table 26
1-CHLORO-1, 2, 2, 2-TETRAFLUOROETHANE (R124) Table 27 Table 28
1-CHLORO-2, 2, 2-TRIFLUOROETHANE (R133a) Table 29 Table 30
2,3,3,3,-TETRAFLUORO-1-PROPENE (R1234yf) Table 31 Table 32
2-METHYLPROPENE 1055 Table 33 Table 34
3-METHYL 1-BUTENE 2561 Table 35 Table 36
ACETYLENE 1001 Table 37 Table 38
AMMONIA 1005 Table 39 Table 40
ARGON 1006 Table 41 Table 42
ARSINE 2188 Table 43 Table 44
BORON TRICHLORIDE 1741 Table 45 Table 46
BORON TRIFLUORIDE 1008 Table 47 Table 48
BREATHABLE GAS MIXTURES (UNCO2 < 7% O.I. > O.I. (UNAIR)) Table 49 Table 50
BREATHABLE GAS MIXTURES (UNO.I.=O.I.(UNAIR)) Table 51 Table 52
BROMINE CHLORIDE 2901 Table 53 Table 54
BROMINE PENTAFLUORIDE 1745 Table 55 Table 56
BROMINE TRIFLUORIDE 1746 Table 57 Table 58
BROMOCHLORODIFLUOROMETHANE (R12B1) 1974 Table 59 Table 60
BROMOCHLOROMETHANE 1887 Table 61 Table 62
BROMOTRIFLUOROETHY
...

© ISO 2022 – All rights reserved
ISO/DTR 7470:2022(E)
ISO/TC 58/SC 2/WG 11
Secretariat: AFNOR
Valve outlets for gasDate: 2022-12-23
Gas cylinders – — List of provisions
Sorties de robinets des bouteilles à gaz – Inventaire des dispositions


WDFDIS stage

Warning for WDs and CDs
This document is not an ISO International Standard. It is distributed for review and comment. It is subject to
change without notice and may not be referred to as an International Standard.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.

© ISO 2022 – All rights reserved

---------------------- Page: 1 ----------------------
ISO/DTR 7470:2022(E)
© ISO 2022, Published in Switzerland
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 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. Phone: + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail: [e-mail]
Website: www.iso.org
Published in Switzerland
www.iso.org
ii © ISO 2022 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/DTR 7470:2022(E)
Contents
Foreword . iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Valve outlets by countries and by threads . 1

© ISO 2022 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO/DTR 7470:2022(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 onof 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.htmlthe following URL: .
This document was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 2,
Cylinder fittings.
This third edition cancels and replaces the second edition (ISO/TR 7470:1988), which has been
technically revised.
The main changes are as follows:
— the tables have been provided in a spreadsheet available at:
https://standards.iso.org/iso/tr/7470/ed-1/en
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
iv © ISO 2022 – All rights reserved

---------------------- Page: 4 ----------------------
ISO/DTR 7470:2022(:(E)
Valve outlet for gas
© ISO 2022 – All rights reserved v

---------------------- Page: 5 ----------------------
ISO/DTR 7470:(E)
Gas cylinders – — List of provisions
1 Scope
This document lists gas cylinders valve outlets in use.
This document provides details of thread types and sizes.
NOTE Complete descriptions of particular valve outlets are given in national standards.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminologicalterminology databases for use in standardization at the following
addresses:
— — ISO Online browsing platform: available at https://www.iso.org/obp
— — IEC Electropedia: available at https://www.electropedia.org/
4 Valve outlets by countries and by threads
Table 1The nominal dimensions, designations and references in national standards of valve outlets are
provided in the following tables. For each gas, there are a table presented valve outlets by countries and
a table presented valve outlet by threads. All of the pressures are given in bar. In case of doubt, refer to
the applicable valve outlet standard.
The Table below lists the gas and the corresponding tabs in the spreadsheet available at:
https://standards.iso.org/iso/tr/7470/ed-1/enExcel file, where the nominal dimensions, designations
and references of valve outlets found in national standards are presented by country and by thread type.
All of the pressures are given in bar. In case of doubt, refer to the applicable valve outlet standard.
NOTE The pressure ratings in the table are taken from the standards.
NOTE Pressure The pressure rating for compressed gas normally corresponds to the working pressure of the
gas cylinder and for liquefied gases to the test pressure of the gas cylinder.
Table 1 – — List of gas with the corresponding tabs
Gas UN number Valve outlets Valve outlets
by countries by threads
1030 Table 1Table Table 2
1,1 - DIFLUOROETHANE
1
1,1,1,2-TETRAFLUOROETHANE (R134a) 3159 Table 3 Table 4
1,1,1-TRICHLOROTRIFLUOROETHANE  Table 5 Table 6
1,1,2-TRICHLOROTRIFLUOROETHANE (R113)  Table 7 Table 8
1, 1-DICHLOROTETRAFLUOROETHANE (R114a)  Table 9 Table 10
1,1-DIFLUOROETHYLENE 1959 Table 11 Table 12
1, 2-DIBROMOTETRAFLUOROETHANE (R114B2)  Table 13 Table 14
1,2-DICHLORODIFLUOROETHYLENE  Table 15 Table 16
1,2-DICHLOROETHYLENE (R1130) 1150 Table 17 Table 18
1, 2-DICHLOROHEXAFLUOROCYCLOBUTANE (RC316)  Table 19 Table 20
© ISO 2022 – All rights reserved 1

---------------------- Page: 6 ----------------------
ISO/DTR 7470:(E)
Gas UN number Valve outlets Valve outlets
by countries by threads
1,3-BUTADIENE-1,3 1010 Table 21 Table 22
1.1.1TRIFLUOROETHANE OR R143A 2035 Table 23 Table 24
1-CHLORO 1,1-DIFLUORETHANE 2517 Table 25 Table 26
1-CHLORO-1, 2, 2, 2-TETRAFLUOROETHANE (R124)  Table 27 Table 28
1-CHLORO-2, 2, 2-TRIFLUOROETHANE (R133a)  Table 29 Table 30
2,3,3,3,-TETRAFLUORO-1-PROPENE (R1234yf)  Table 31 Table 32
2-METHYLPROPENE 1055 Table 33 Table 34
3-METHYL 1-BUTENE 2561 Table 35 Table 36
ACETYLENE 1001 Table 37 T
...

FINAL
TECHNICAL ISO/DTR
DRAFT
REPORT 7470
ISO/TC 58/SC 2
Gas cylinders — List of provisions
Secretariat: AFNOR
Voting begins on:
2023-01-18
Voting terminates on:
2023-03-15
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/DTR 7470:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 1 ----------------------
ISO/DTR 7470:2023(E)
FINAL
TECHNICAL ISO/DTR
DRAFT
REPORT 7470
ISO/TC 58/SC 2
Gas cylinders — List of provisions
Secretariat: AFNOR
Voting begins on:
Voting terminates on:
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
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.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: [phone]
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: [e-mail]
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/DTR 7470:2022(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
  © ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2022

---------------------- Page: 2 ----------------------
ISO/DTR 7470:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Valve outlets by countries and by threads . 1
iii
© ISO 2022 – All rights reserved

---------------------- Page: 3 ----------------------
ISO/DTR 7470:2022(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 non­governmental, 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 Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 2,
Cylinder fittings.
This third edition cancels and replaces the second edition (ISO/TR 7470:1988), which has been
technically revised.
The main changes are as follows:
— the tables have been provided in a spreadsheet available at:
https://standards.iso.org/iso/tr/7470/ed­1/en
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
iv
  © ISO 2022 – All rights reserved

---------------------- Page: 4 ----------------------
TECHNICAL REPORT ISO/DTR 7470:2022(E)
Gas cylinders — List of provisions
1 Scope
This document lists gas cylinders valve outlets in use.
This document provides details of thread types and sizes.
NOTE Complete descriptions of particular valve outlets are given in national standards.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Valve outlets by countries and by threads
Table 1 lists the gas and the corresponding tabs in the spreadsheet available at: https:// standards .iso
.org/ iso/ tr/ 7470/ ed ­1/ en, where the nominal dimensions, designations and references of valve outlets
found in national standards are presented by country and by thread type. All of the pressures are given
in bar. In case of doubt, refer to the applicable valve outlet standard.
NOTE The pressure ratings are taken from the standards. The pressure rating for compressed gas normally
corresponds to the working pressure of the gas cylinder and for liquefied gases to the test pressure of the gas
cylinder.
Table 1 — List of gas with the corresponding tabs
Gas UN number Valve outlets Valve outlets
by countries by threads
1,1 ­ DIFLUOROETHANE 1030 Table 1 Table 2
1,1,1,2­TETRAFLUOROETHANE (R134a) 3159 Table 3 Table 4
1,1,1­TRICHLOROTRIFLUOROETHANE Table 5 Table 6
1,1,2­TRICHLOROTRIFLUOROETHANE (R113) Table 7 Table 8
1, 1­DICHLOROTETRAFLUOROETHANE (R114a) Table 9 Table 10
1,1­DIFLUOROETHYLENE 1959 Table 11 Table 12
1, 2­DIBROMOTETRAFLUOROETHANE (R114B2) Table 13 Table 14
1,2­DICHLORODIFLUOROETHYLENE Table 15 Table 16
1,2­DICHLOROETHYLENE (R1130) 1150 Table 17 Table 18
1, 2­DICHLOROHEXAFLUOROCYCLOBUTANE (RC316) Table 19 Table 20
1,3­BUTADIENE­1,3 1010 Table 21 Table 22
1.1.1TRIFLUOROETHANE OR R143A 2035 Table 23 Table 24
1
© ISO 2022 – All rights reserved

---------------------- Page: 5 ----------------------
ISO/DTR 7470:2022(E)
TTabablele 1 1 ((ccoonnttiinnueuedd))
Gas UN number Valve outlets Valve outlets
by countries by threads
1­CHLORO 1,1­DIFLUORETHANE 2517 Table 25 Table 26
1­CHLORO­1, 2, 2, 2­TETRAFLUOROETHANE (R124) Table 27 Table 28
1­CHLORO­2, 2, 2­TRIFLUOROETHANE (R133a) Table 29 Table 30
2,3,3,3,-TETRAFLUORO-1-PROPENE (R1234yf) Table 31 Table 32
2­METHYLPROPENE 1055 Table 33 Table 34
3­METHYL 1­BUTENE 2561
...