EN ISO 14456:2024
(Main)Gas cylinders - Gas properties and associated classification (FTSC) codes (ISO 14456:2024)
Gas cylinders - Gas properties and associated classification (FTSC) codes (ISO 14456:2024)
This document gives a list of FTSC (fire potential, i.e. “oxidizing power and flammability”, toxicity, state of the gas, and corrosiveness) codes determined according to the relevant properties of gases and of some liquids that are transported under pressure.
It does not cover material compatibility with gases which is covered by the ISO 11114 series.
Gasflaschen - Eigenschaften von Gasen und zugehörige Klassifizierungscodes (FTSC) (ISO 14456:2024)
Dieses Dokument enthält eine Liste der FTSC-Codes (Brennbarkeit, d. h. „Oxidationsvermögen und Entzündbarkeit“, Giftigkeit, Gaszustand und Ätzvermögen; en: fire potential, i.e. “oxidizing potential and flammability“, toxicity, state of the gas and corrosiveness) entsprechend den entsprechenden Eigenschaften von Gasen und einigen Flüssigkeiten, die unter Druck transportiert werden, wieder.
Es umfasst nicht die Verträglichkeit von Stoffen mit Gasen, die durch die Normenreihe ISO 11114 abgedeckt ist.
Bouteilles à gaz - Propriétés des gaz et codes de classification associés (FTSC) (ISO 14456:2024)
Le présent document fournit une liste de codes FTSC (potentiel d’inflammabilité, c’est-à-dire «pouvoir comburant et inflammabilité», toxicité, état du gaz et corrosivité) déterminés en fonction des propriétés correspondantes des gaz et de certains liquides transportés sous pression.
Il ne traite pas de la compatibilité des matériaux avec les contenus gazeux, qui est traitée par la série ISO 11114.
Plinske jeklenke - Lastnosti plina in pripadajoči razvrstitveni razredi (FTSC) (ISO/FDIS 14456:2024)
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN ISO 14456:2023
01-marec-2023
Plinske jeklenke - Lastnosti plina in pripadajoči razvrstitveni razredi (FTSC)
(ISO/DIS 14456:2023)
Gas cylinders - Gas properties and associated classification (FTSC) codes (ISO/DIS
14456:2023)
Gasflaschen - Eigenschaften von Gasen und zugehörige Klassifizierungscodes (FTSC)
(ISO/DIS 14456:2023)
Bouteilles à gaz - Propriétés des gaz et codes de classification associés (FTSC)
(ISO/DIS 14456:2023)
Ta slovenski standard je istoveten z: prEN ISO 14456 rev
ICS:
23.020.35 Plinske jeklenke Gas cylinders
oSIST prEN ISO 14456:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN ISO 14456:2023
oSIST prEN ISO 14456:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 14456
ISO/TC 58/SC 2 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2023-02-01 2023-04-26
Gas cylinders — Gas properties and associated
classification (FTSC) codes
Bouteilles à gaz — Propriétés des gaz et codes de classification associés (FTSC)
ICS: 23.020.35
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
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PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023
oSIST prEN ISO 14456:2023
ISO/DIS 14456:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 14456
ISO/TC 58/SC 2 Secretariat: AFNOR
Voting begins on: Voting terminates on:
Gas cylinders — Gas properties and associated
classification (FTSC) codes
Bouteilles à gaz — Propriétés des gaz et codes de classification associés (FTSC)
ICS: 23.020.35
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
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NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 14456:2022(E)
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ii
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022
oSIST prEN ISO 14456:2023
ISO/DIS 14456:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Gas properties . 2
4.1 Numerical gas code (FTSC) . 2
4.1.1 General . 2
4.1.2 Fire potential, category I . 2
4.1.3 Acute toxicity, category II . 3
4.1.4 State of the gas (in the cylinder at 15 °C), category III . 3
4.1.5 Corrosiveness, category IV . 4
5 List of gases and liquids with the corresponding FTSC codes . 4
5.1 Basic principles and single gases . 4
5.2 Assignment of a gas mixture to a group . 5
5.3 Tables of compatible groups of gases and liquids . 5
Annex A (informative) Chemical and hazard data related to FTSC entries proposed for
addition to ISO 14456:2015 .19
Bibliography .46
iii
oSIST prEN ISO 14456:2023
ISO/DIS 14456:2022(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).
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constitute an endorsement.
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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 valves
This second edition cancels and replaces the first edition (ISO 14456:2015), which has been technically
revised.
The main changes are as follows:
— Corrections to CAS numbers and FTSC codes;
— Consequential revisions as a result of a new edition of ISO 5145:2017; and
— Addition of new FTSC codes for commonly used gases and liquids.
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
oSIST prEN ISO 14456:2023
ISO/DIS 14456:2022(E)
Introduction
This document establishes a method of allocating a four-digit code number (FTSC) to any gases and
liquids that are transported under pressure or mixture of gases contained in cylinders. This code
number categorizes the gas, liquids that are transported under pressure or gas mixture in terms of its
physical-chemical properties and/or flammability, toxicity, state of the gas, and corrosiveness (see 4.1).
FTSC is the abbreviation of these properties.
The FTSC code enables gases and liquids that are transported under pressure or gas mixtures to be
assigned to one of the 15 “compatible” gas groups.
The properties and the selection criteria are aligned as appropriate with the Globally Harmonized
System of Classification and Labelling of Chemicals (GHS).
v
oSIST prEN ISO 14456:2023
oSIST prEN ISO 14456:2023
DRAFT INTERNATIONAL STANDARD ISO/DIS 14456:2022(E)
Gas cylinders — Gas properties and associated
classification (FTSC) codes
1 Scope
This document gives a list of FTSC (fire potential, i.e. “oxidizing power and flammability”, toxicity, state
of the gas, and corrosiveness) codes determined according to the relevant properties of gases and of
some liquids that are transported under pressure.
It does not cover material compatibility with gases which is covered by ISO 11114 (all parts).
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 10156, Gas cylinders — Gases and gas mixtures — Determination of fire potential and oxidizing ability
for the selection of cylinder valve outlets
ISO 10298, Gas cylinders — Gases and gas mixtures — Determination of toxicity for the selection of cylinder
valve outlets
ISO 10286:2021, Gas cylinders — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 10286:2021 and the following
apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https:// www .electropedia .org/
— ISO Online browsing platform: available at https:// www .iso .org/ obp
3.1
gas mixture
combination of different single gases and/or liquids deliberately mixed in specified proportions
resulting in a homogeneous gaseous mixture.
[SOURCE: ISO 10286:2021, definition 3.5.2, modified change may be needed later if ISO 10286 definition
changes in future edition]
3.2
liquefied gas
gas, which, when packaged for transport, is partially liquid (or solid) at temperatures above −50 °C
[SOURCE: ISO 10286:2021, definition 3.5.4 change may be needed later if ISO 10286 definition changes
in future edition]
oSIST prEN ISO 14456:2023
ISO/DIS 14456:2022(E)
3.3
compressed gas
gas, which, when packaged under pressure for transport, is entirely gaseous at −50 °C
Note 1 to entry: This category includes all gases with a critical temperature less than or equal to −50 °C.
[SOURCE: ISO 10286:2021, definition 3.5.3 change may be needed later if ISO 10286 definition changes
in future edition]
3.4
lethal concentration 50
LC
concentration of a substance in air exposure to which, for a specified length of time, it is expected
tocause the death of 50 % of the entire defined experimental animal population after a defined time
period
Note 1 to entry: Lethal concentration is usually measured as ppm (volume fraction) or mg/m .
[SOURCE: ISO 10298:2018, definition 3.1 without Note 1 to entry]
4 Gas properties
4.1 Numerical gas code (FTSC)
4.1.1 General
The code number assigned to a gas or liquid is based on the following four physical-chemical properties:
a) Category I (F): fire potential, i.e. “oxidizing power and flammability”, which defines the gas
behaviour with respect to combustion;
b) Category II (T): acute toxicity;
c) Category III (S): gas state, defining the physical state of the fluid in the cylinder at 15 °C within a
given pressure range;
d) Category IV (C): corrosiveness (ability to damage or destroy living tissues: eyes, skin, and mucous
membranes, or the potential for an acid/base chemical reaction).
Each category is subdivided into different characteristics (subdivisions), each identified by a
...
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