SIST EN ISO 10156:2010
(Main)Gases and gas mixtures - Determination of fire potential and oxidizing ability for the selection of cylinder valve outlets (ISO 10156:2010)
Gases and gas mixtures - Determination of fire potential and oxidizing ability for the selection of cylinder valve outlets (ISO 10156:2010)
This International Standard specifies methods for determining whether or not a gas or gas mixture is flammable in air and whether a gas or gas mixture is more or less oxidizing than air under atmospheric conditions. This International Standard is intended to be used for the classification of gases and gas mixtures including the selection of gas cylinder valve outlets. This International Standard does not cover the safe preparation of these mixtures under pressure and at temperatures other than ambient.
Gase und Gasgemische - Bestimmung der Brennbarkeid und des Oxidationsvermögens zur Auswahl von Ventilausgängen (ISO 10156:2010)
Diese Internationale Norm beinhaltet Verfahren zur Bestimmung darüber, ob ein Gas oder Gasgemisch entzündbar in Luft ist oder nicht und ob ein Gas oder Gasgemisch stärker oder weniger oxidierend als Luft unter atmosphärischen Bedingungen ist.
Es ist beabsichtigt, diese Internationale Norm zur Einstufung von Gasen und Gasgemischen einschließlich der Auswahl von Gasflaschenventilauslässen zu nutzen.
Diese Internationale Norm erfasst nicht die sichere Aufbereitung dieser Gasgemische unter Druck und unter anderen Temperaturen als Umgebungstemperaturen.
Gaz et mélanges de gaz - Détermination du potentiel d'inflammabilité et d'oxydation pour le choix des raccords de sortie de robinets (ISO 10156:2010)
L'ISO 10156:2010 spécifie des méthodes servant à déterminer si un gaz ou un mélange de gaz est ou non inflammable à l'air et si un gaz ou un mélange de gaz est plus ou moins oxydant que l'air, dans les conditions atmosphériques.
Elle est destinée à être utilisée pour la classification des gaz et des mélanges de gaz, y compris pour le choix des raccords de sortie de robinets de bouteilles à gaz.
Elle ne traite pas de la préparation en toute sécurité de ces mélanges à une pression et à des températures autres que les conditions ambiantes.
Plini in zmesi plinov - Določitev stopnje gorljivosti in oksidativnosti za izbiro izhodnega priključka ventila na jeklenki (ISO 10156:2010)
Ta mednarodni standard opredeljuje metode za določevanje ali je ali ni plin ali zmes plina gorljiva na zraku in ali je plin ali zmes plina bolj oksidativna kot zrak v atmosferskih pogojih. Ta mednarodni standard je namenjen temu, da se uporablja za klasifikacijo plinov in zmesi plinov, vključno z izbiro izhodnega priključka ventila na jeklenki. Ta mednarodni standard ne zajema varne priprave teh zmesi pod tlakom in pri temperaturi, ki nista okoljska.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 10156:2010
01-november-2010
1DGRPHãþD
SIST EN ISO 10156-2:2005
SIST EN ISO 10156-2:2005/AC:2006
3OLQLLQ]PHVLSOLQRY'RORþLWHYVWRSQMHJRUOMLYRVWLLQRNVLGDWLYQRVWL]DL]ELUR
L]KRGQHJDSULNOMXþNDYHQWLODQDMHNOHQNL ,62
Gases and gas mixtures - Determination of fire potential and oxidizing ability for the
selection of cylinder valve outlets (ISO 10156:2010)
Gase und Gasgemische - Bestimmung der Brennbarkeid und des Oxidationsvermögens
zur Auswahl von Ventilausgängen (ISO 10156:2010)
Gaz et mélanges de gaz - Détermination du potentiel d'inflammabilité et d'oxydation pour
le choix des raccords de sortie de robinets (ISO 10156:2010)
Ta slovenski standard je istoveten z: EN ISO 10156:2010
ICS:
23.020.30 7ODþQHSRVRGHSOLQVNH Pressure vessels, gas
MHNOHQNH cylinders
71.100.20 Industrijski plini Gases for industrial
application
SIST EN ISO 10156:2010 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 10156:2010
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SIST EN ISO 10156:2010
EUROPEAN STANDARD
EN ISO 10156
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2010
ICS 23.020.30; 71.100.20 Supersedes EN 720-2:1996, EN ISO 10156-2:2005
English Version
Gases and gas mixtures - Determination of fire potential and
oxidizing ability for the selection of cylinder valve outlets (ISO
10156:2010)
Gaz et mélanges de gaz - Détermination du potentiel Gase und Gasgemische - Bestimmung der Brennbarkeid
d'inflammabilité et d'oxydation pour le choix des raccords und des Oxidationsvermögens zur Auswahl von
de sortie de robinets (ISO 10156:2010) Ventilausgängen (ISO 10156:2010)
This European Standard was approved by CEN on 18 March 2010.
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 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 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10156:2010: E
worldwide for CEN national Members.
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SIST EN ISO 10156:2010
EN ISO 10156:2010 (E)
Contents Page
Foreword .3
2
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SIST EN ISO 10156:2010
EN ISO 10156:2010 (E)
Foreword
This document (EN ISO 10156:2010) has been prepared by Technical Committee ISO/TC 58 "Gas cylinders"
in collaboration with 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 October 2010, and conflicting national standards shall be withdrawn at
the latest by October 2010.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 720-2:1996, EN ISO 10156-2:2005.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
According to the CEN/CENELEC Internal Regulations, the national standards organizations 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, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 10156:2010 has been approved by CEN as a EN ISO 10156:2010 without any modification.
3
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SIST EN ISO 10156:2010
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SIST EN ISO 10156:2010
INTERNATIONAL ISO
STANDARD 10156
Third edition
2010-04-01
Gases and gas mixtures — Determination
of fire potential and oxidizing ability for
the selection of cylinder valve outlets
Gaz et mélanges de gaz — Détermination du potentiel d'inflammabilité
et d'oxydation pour le choix des raccords de sortie de robinets
Reference number
ISO 10156:2010(E)
©
ISO 2010
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SIST EN ISO 10156:2010
ISO 10156:2010(E)
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ii © ISO 2010 – All rights reserved
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SIST EN ISO 10156:2010
ISO 10156:2010(E)
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Terms, definitions, symbols and units.1
2.1 Terms and definitions .1
2.2 Symbols.2
2.3 Units.3
3 Flammability of gases and gas mixtures in air .3
3.1 General.3
3.2 Test method .3
3.2.1 Key points concerning safety .3
3.2.2 Principle.3
3.2.3 Test apparatus and materials.3
3.2.4 Procedure.4
3.2.5 Results for pure gases.4
3.3 Calculation method for mixtures containing n flammable gases and p inert gases.7
3.4 Examples.11
3.5 Classification according to the Globally Harmonized System (GHS).12
4 Oxidizing power of gases and gas mixtures .12
4.1 General.12
4.2 Test method .12
4.2.1 Key points concerning safety .12
4.2.2 Principle.12
4.2.3 Test apparatus.13
4.2.4 Procedure.16
4.2.5 Results.16
4.3 Calculation method .16
4.3.1 Principle.16
4.3.2 C coefficients .17
i
5 Mixtures containing oxygen and flammable gases .18
5.1 General.18
5.2 Basis of flammability classification.20
5.3 Examples.22
Annex A (informative) Classification according to the Globally Harmonized System (GHS) .24
Bibliography.25
© ISO 2010 – All rights reserved iii
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SIST EN ISO 10156:2010
ISO 10156:2010(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 10156 was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 2, Cylinder
fittings.
This third edition of ISO 10156 cancels and replaces ISO 10156:1996 and ISO 10156-2:2005.
It gives updated data for flammability and oxidizing ability.
iv © ISO 2010 – All rights reserved
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SIST EN ISO 10156:2010
ISO 10156:2010(E)
Introduction
[1]
ISO 5145 and other related standards establish practical criteria for the determination of outlet connections
of cylinder valves. These criteria are based on certain physical and chemical properties of the gases. In
particular, the flammability in air and the oxidizing ability are considered.
One of the potential complications that prompted the development of this International Standard is that whilst
there are abundant data in the literature relating to pure gases, differences can be found, depending upon the
test methods employed; in the case of gas mixtures, data in the literature are often incomplete or even non-
existent.
The initial aim of this International Standard was to eliminate the ambiguities in the case of differences in the
literature, and above all, to supplement existing data (mainly in the case of gas mixtures).
Subsequently, this International Standard was used for other purposes than the selection of cylinder valve
outlets, such as establishing flammability and oxidizing potential data for labelling according to international
transport regulations and dangerous substances regulations, under the umbrella of the Globally Harmonized
System (GHS).
© ISO 2010 – All rights reserved v
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SIST EN ISO 10156:2010
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SIST EN ISO 10156:2010
INTERNATIONAL STANDARD ISO 10156:2010(E)
Gases and gas mixtures — Determination of fire potential and
oxidizing ability for the selection of cylinder valve outlets
1 Scope
This International Standard specifies methods for determining whether or not a gas or gas mixture is
flammable in air and whether a gas or gas mixture is more or less oxidizing than air under atmospheric
conditions.
This International Standard is intended to be used for the classification of gases and gas mixtures including
the selection of gas cylinder valve outlets.
This International Standard does not cover the safe preparation of these mixtures under pressure and at
temperatures other than ambient.
2 Terms, definitions, symbols and units
2.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1.1
gas or gas mixture flammable in air
gas or gas mixture that is ignitable in air at atmospheric pressure and a temperature of 20 °C
2.1.2
lower flammability limit in air
minimum content of a gas or gas mixture in an homogeneous mixture with air at which a flame just starts to
propagate
NOTE 1 The lower flammability limit is determined at atmospheric conditions.
NOTE 2 The term “flammability limit”, as used in this International Standard, is sometimes called “explosion limit”.
2.1.3
upper flammability limit in air
maximum content of a gas or gas mixture in an homogeneous mixture with air at which a flame just starts to
propagate
NOTE 1 The upper flammability limit is determined at atmospheric conditions.
NOTE 2 The term “flammability limit”, as used in this International Standard, is sometimes called “explosion limit”.
2.1.4
flammability range
range of concentration between the lower and upper flammability limits
NOTE The term “flammability range”, as used in this International Standard, is sometimes also called “explosion
range”.
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SIST EN ISO 10156:2010
ISO 10156:2010(E)
2.1.5
gas or gas mixture more oxidizing than air
gas or gas mixture that is able, at atmospheric pressure, to support the combustion more than a reference
oxidizer consisting of 23,5 % oxygen in nitrogen
2.1.6
oxidizing power
OP
oxidizing potential
dimensionless number that compares the oxidizing capability of a gas mixture to that of oxygen
NOTE OP is calculated as the sum of the products of the mole fraction(s) of each oxidizing component times its
coefficient of oxygen equivalency, C .
i
2.2 Symbols
th
A molar fraction of the i flammable gas in a gas mixture, in %
i
th
B molar fraction of the k inert gas in a gas mixture, in %
k
C coefficient of oxygen equivalency
i
th
F i flammable gas in a gas mixture
i
th
I k inert gas in a gas mixture
k
n number of flammable gases in a gas mixture
p number of inert gases in a gas mixture
K coefficient of equivalency of an inert gas relative to nitrogen (see Table 1)
k
A′ equivalent content of a flammable gas
i
L lower flammability limit in air of a flammable gas
i
T maximum content of flammable gas which, when mixed with nitrogen, is not flammable in air, in %
ci
x molar fraction of the oxidizing component, in %
i
He helium
Ar argon
Ne neon
Kr krypton
Xe xenon
N nitrogen
2
H hydrogen
2
O oxygen
2
CO carbon dioxide
2
SO sulfur dioxide
2
NO nitrous oxide
2
SF sulfur hexafluoride
6
CF carbon tetrafluoride
4
C F octafluoropropane
3 8
CH methane
4
2 © ISO 2010 – All rights reserved
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SIST EN ISO 10156:2010
ISO 10156:2010(E)
2.3 Units
For the purposes of this International Standard all gas percentages (%) are given as molar fractions (mol. %)
which are equivalent to volume fractions (vol. %) under normal atmospheric conditions.
3 Flammability of gases and gas mixtures in air
3.1 General
Subclauses 3.2 and 3.3 give a test method and a calculation method for determining whether a gas or gas
mixture is flammable in air.
The test method (given in 3.2) may be used in all cases but shall be used when T (or L ) values are not
ci i
available.
The calculation method (given in 3.3) may only be used if reliable T (or L ) values are available.
ci i
3.2 Test method
3.2.1 Key points concerning safety
Tests shall be carried out by trained and competent personnel working in accordance with authorized
procedures (see also 3.2.4). The reaction tube and flowmeter shall be adequately screened to protect
personnel in the event of an explosion. Personnel shall wear personal protective equipment including safety
glasses. During the ignition sequence, the reaction tube shall be open to the atmosphere and isolated from
the gas supply. Care shall also be taken during the analysis of the test gas or mixture.
3.2.2 Principle
The gas or gas mixture is mixed in the desired proportions with air. In the quiescent test mixture, an ignition is
initiated using an electric spark, and it is observed whether or not a flame propagates through the reaction
tube.
3.2.3 Test apparatus and materials
The apparatus (see Figure 1) includes:
⎯ a mixer;
⎯ a tube in which the reaction takes place;
⎯ an ignition system;
⎯ a system of analysis to determine the test-gas composition.
NOTE Alternative equivalent apparatus may be used, as described in standard test methods for the determination of
[2] [3]
explosion limits, e.g. EN 1839 and ASTM E 681 .
3.2.3.1 Preparation
3.2.3.1.1 Test gas
The test gas shall be prepared to represent the most flammable composition that can occur in the normal
course of production. The criteria to be used in establishing the composition of the test gas are manufacturing
tolerances, i.e. the test gas shall contain the highest concentration of flammable gases encountered in the
normal manufacturing process and the moisture content shall be less than or equal to 0,01 %. The test gas
shall be thoroughly mixed and carefully analysed to determine the exact composition.
© ISO 2010 – All rights reserved 3
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SIST EN ISO 10156:2010
ISO 10156:2010(E)
3.2.3.1.2 Compressed air
The compressed air shall be analysed and the moisture content shall be less than or equal to 0,01 %.
3.2.3.1.3 Test gas/air mixture
The compressed air and the gas to be tested are mixed in a blender, controlling the flowrates. The air-
flammable gas mixture shall be analysed using a chromatograph or a simple oxygen analyser.
3.2.3.2 Reaction tube
The test vessel is an upright cylinder of thick glass (e.g. 5 mm) having a minimum inner diameter of 50 mm
and a minimum height of 300 mm. The ignition electrodes are separated by a distance of 5 mm and are
placed 50 mm to 60 mm above the bottom of the cylinder. The cylinder is fitted with a pressure-release
opening. The apparatus shall be shielded to restrict any explosion damage.
3.2.3.3 Ignition system
A spark generator capable of supplying high voltage sparks (e.g. 15 kV, 30 mA, a.c.) with energy of 10 J shall
be used. The spark gap (distance between the electrodes) shall be 5 mm, the spark duration 0,2 s to 0,5 s.
3.2.4 Procedure
When carrying out flammability tests, care shall be taken to avoid explosion. This can be done by
commencing the experimental work at a known “safe” concentration of 1 % test gas in air. Subsequently, the
initial gas concentration can be increased in small steps by 1 % until ignition occurs.
Prior to each ignition attempt, the test vessel shall be purged with the test mixture. The purging volume shall
be at least ten times the volume of the test vessel. Then, an ignition is attempted with the induction spark
when the test mixture is quiescent, and it is observed visually whether or not a flame detaches from the
ignition source and propagates.
If a flame detachment and an upwards propagation of at least 100 mm is observed, the test substance shall
be classified as flammable.
If the chemical structure of the gas indicates that it would be non-flammable and the composition of the
stoichiometric mixture with air can be calculated, only mixtures in the range from 10 % (absolute) less than the
stoichiometric composition to 10 % greater than this composition need be tested in 1 % steps.
NOTE With mixtures containing hydrogen, the flame is almost colourless. In order to confirm the presence of such
flames, the use of temperature-measuring probes is recommended [see Figure 1a)].
3.2.5 Results for pure gases
A list of flammable gases is given in Table 2 together with T values and L values. These values have been
ci i
obtained using test equipment similar to that described in 3.2.3.
4 © ISO 2010 – All rights reserved
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SIST EN ISO 10156:2010
ISO 10156:2010(E)
a) Apparatus using Pyrex tube and temperature-measuring probes
Key
1 mixer
2 flowmeter
3 test gas
4 compressed air
5 safety device (pressure relief valve)
6 valve
7 spark plug
8 thermocouples
9 Pyrex tube, length 1 m, internal diameter 50 mm
10 valve
a
Gas mixture vented to atmosphere.
b
Gas mixture analysed.
Figure 1 (continued)
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SIST EN ISO 10156:2010
ISO 10156:2010(E)
b) Apparatus suitable for testing a mixture of gases
Key
1 ignition electrodes
2 high-voltage transformer
3 timer switch
4 mixture containing x % test gas
5 buffer vessel
6 test gas
7 metering pump 1, x %
8 metering pump 2, y %
9 air
10 mixture containing (xy/100)% test gas
a
Gas mixture analysed and vented to atmosphere.
b
Gas mixture vented during test.
Figure 1 — Examples of apparatus for determination of flammability limits of gases at atmospheric
pressure and ambient temperature
6 © ISO 2010 – All rights reserved
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SIST EN ISO 10156:2010
ISO 10156:2010(E)
3.3 Calculation method for mixtures containing n flammable gases and p inert gases
The composition of a mixture of this kind can be expressed as follows:
A F +…+ A F +…+ A F + B I +…+ B I + …+ B I
1 1 i i n n 1 1 k k p p
The composition of the mixture is re-expressed in terms of an equivalent composition in which all the inert-gas
fractions are converted into their nitrogen equivalent, using the coefficient of equivalency. K values are given
k
in Table 1:
A F +…+ A F +…+ A F + (K B +…+ K B +…+ K B )N
1 1 i i n n 1 1 k k p p 2
Taking the sum of all the component gas fractions to be equal to 1, the expression for the composition
becomes:
⎛⎞
⎜⎟
n p
⎛⎞
⎜⎟
1
⎜⎟
AF + K B N
⎜⎟
∑∑ii k k 2
p
n
⎜⎟
⎜⎟
ik==11
⎝⎠
A + KB
⎜⎟∑∑ikk
⎜⎟
⎝⎠ik==11
where
A
i
′
= A
i
nP
AK+ B
∑∑ikk
ik==11
is the equivalent flammable-gas content. The condition for the mixture not being flammable in air is
n
A′
i
100u 1
∑
T
ci
i=1
where T is the maximum content of flammable gas or vapour, which, in a mixture with nitrogen, results in a
ci
composition which is not flammable in air. Values of T are listed in Tables 2a) and 2b) for gases and vapours.
ci
Alternatively to the preceding equations, the following equation can be used, which does not require any
intermediate steps:
n p
⎛⎞
100
A −1 u BK
⎜⎟
∑∑ikk
T
⎝⎠ci
ik==11
Table 1 — Coefficients of equivalency, K , for inert gases relative to nitrogen
k
Gas N CO He Ar Ne Kr Xe SO SF CF C F
2 2 2 6 4 3 8
K 1 1,5 0,9 0,55 0,7 0,5 0,5 1,5 4 2 1,5
k
For other non-flammable and non-oxidizing gases containing three atoms or more in their chemical formulae, the
coefficient of equivalency K = 1,5 shall be used. Some types of non-flammable partial halogenated hydrocarbons, for
k
example the refrigerant R134a, can react partially with air and oxygen in the presence of flammable gases. For all
mixtures containing non-flammable, partially halogenated hydrocarbons and flammable gases, the calculation method
shall not be applied if the concentration of the flammable component exceeds 0,25 %.
NOTE These data are conservatively estimated based on experimental data and experiences within the gas industry.
© ISO 2010 – All rights reserved 7
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SIST EN ISO 10156:2010
ISO 10156:2010(E)
Table 2 — T and L values of flammable gases and vapours
ci i
a) Flammability data for the majority of flammable gases
Gas CAS No. UN No. T in L
ci i
% in %
Acetylene 74-86-2 3374 3,0 2,3
Ammonia 7664-41-7 1005 40,1 15,4
Arsine 7784-42-1 2188 3,9 3,9
Bromomethane 74-83-9 1062 13,9 8,6
1,2-Butadiene 590-19-2 1010 2,0 1,4
1,3-Butadiene 106-99-0 1010 2,0 1,4
n-Butane 106-97-8 1011 3,6 1,4
1-Butene 106-98-9 1012 3,3 1,5
cis-Butene 590-18-1 1012 3,3 1,5
trans-Butenes 624-64-6 1012 3,3 1,5
Carbon monoxide 630-08-0 1016 15,2 10,9
Carbonyl sulfide 463-58-1 2204 6,5 6,5
Chlorodifluoroethane (R142b) 75-68-3 2517 26,4 6,3
Chloroethane 75-00-3 1037 5,8 3,6
Chlorotrifluoroethylene (R1113) 79-38-9 1082 7,4 4,6
Cyanogen 460-19-5 1026 3,9 3,9
Cyclobutane 287-23-0 2601 2,9 1,8
Cyclopropane 75-19-4 1027 3,4 2,4
Deuterium 7782-39-0 1957 6,7 6,7
Diborane 19287-45-7 1911 0,9 0,9
Dichlorosilane 4109-96-0 2189 2,5 2,5
Difluoroethane (R152a) 75-37-6 1030 8,7 4,0
Difluoroethylene (R1132a) 75-38-7 1959 6,6 4,7
Dimethyl ether 115-10-6 1033 3,8 2,7
Dimethylamine 124-40-3 1154 2,8 2,8
Dimethylpropane (neopentane) 463-82-1 2044 2,1 1,3
Ethane 74-84-0 1035 4,5 2,4
Ethyl methyl ether 540-67-0 1039 2,8 2,0
Ethylacetylene 107-00-6 2452 1,8 1,3
Ethylene 74-85-1 1962 4,1 2,4
Ethylene oxide 75-21-8 1040 4,8 2,6
Fluoroethane 353-36-6 2453 6,1 3,8
Fluoromethane 593-53-3 2454 9,0 5,6
Germane 7782-65-2 2192 1,0 1,0 (estimated)
Hydrogen 1333-74-0 1049 5,5 4,0
Hydrogen selenide 7783-07-5 2202 4,0 4,0
8 © ISO 2010 – All rights reserved
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SIST EN ISO 10156:2010
ISO 10156:2010(E)
a) (continued)
Gas CAS No. UN No. T in L in
ci i
% %
Hydrogen sulfide 7783-06-4 1053 8,9 3,9
Isob
...
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