ISO/PRF 24833
(Main)Natural gas — Upstream area — Determination of elemental sulfur solubility by saturated dissolution method
Natural gas — Upstream area — Determination of elemental sulfur solubility by saturated dissolution method
This document specifies the method and quality requirements for the determination of elemental sulfur solubility in natural gas, and is applicable to the determination of elemental sulfur solubility in sulfur-containing natural gas.
Gaz naturel – Zone amont – Détermination de la solubilité du soufre élémentaire par la méthode de dissolution saturée
General Information
Standards Content (Sample)
International
Standard
ISO 24833
First edition
Natural gas — Upstream area —
Determination of elemental sulfur
solubility by saturated dissolution
method
Gaz naturel – Zone amont – Détermination de la solubilité du
soufre élémentaire par la méthode de dissolution saturée
PROOF/ÉPREUVE
Reference number
ISO 24833:2025(en) © ISO 2025
ISO 24833:2025(en)
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
PROOF/ÉPREUVE
ii
ISO 24833:2025(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Instrument and apparatus . 2
5.1 Apparatus .2
5.2 Verification/calibration requirements .4
6 Reagents and materials . 4
7 Preparation . 4
7.1 Recording of ambient temperature and pressure .4
7.2 Inspection of sour gas sample .4
7.3 Inspection of apparatus (5.1) for airtightness .4
7.4 Sample preparation .5
7.5 Addition of absorbent liquid .5
7.6 Addition of desulfurizer (6.4) .5
8 Testing procedure . 5
8.1 Saturated dissolution .5
8.2 Release of gas .5
8.3 Absorption of elemental sulfur .6
8.4 Measurement of gas volume .6
8.5 Treatment of tail gas .6
8.6 Collection of elemental sulfur .6
8.7 Weighing .6
9 Calculation . 6
10 Precision . 7
10.1 Repeatability limit .7
10.2 Reproducibility limit .7
11 Report . 8
12 Practices of safe operation . 8
Annex A (informative) Statistical procedure for estimation of precision .10
Annex B (informative) Sources of water density at different temperature and pressure
conditions .13
Bibliography . 14
PROOF/ÉPREUVE
iii
ISO 24833:2025(en)
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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 193 Natural gas, Subcommittee SC 3, Upstream
area.
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.
PROOF/ÉPREUVE
iv
ISO 24833:2025(en)
Introduction
During the exploitation and transportation of high-sulfur natural gas, elemental sulfur in the gas can be
deposited in reservoirs, wellbores and pipelines. In reservoirs, sulfur deposits can reduce permeability
significantly, which hinders fluid flow and lowers the production efficiency and capacity of gas wells. In
pipelines, sulfur deposits can cause blockage, which in severe cases can lead to ruptures and leaks and
increase safety risks. Additionally, sulfur deposits on equipment and pipelines accelerate corrosion, shorten
their service life and increase maintenance costs. Therefore, sulfur deposition not only results in direct
economic losses to oil and gas operations but also poses safety and environmental risks that require urgent
and effective management measures.
Determining the solubility of sulfur is crucial for addressing sulfur deposits. A comprehensive understanding
of sulfur dissolution characteristics can be achieved by experimentally studying sulfur solubility under
various pressure and temperature conditions. This enables the assessment of the risk of sulfur precipitation
under specific conditions. This knowledge allows engineers to optimize the operation system of sulfur-
containing gas wells and pipelines, e.g. by adjusting pressure and temperature to reduce its precipitation
and deposition. Additionally, determining sulfur solubility can aid in developing models to predict sulfur
deposition. These models quantitatively describe sulfur precipitation patterns, which helps identify
potential deposition issues early so that appropriate preventive measures can be implemented. Through
these preventive measures, sulfur deposits in gas production and transportation can be controlled in a
scientific and effective way, thus minimizing their impact on operations.
The samples tested in this document include sour gas collected from downhole, wellhead or separator by
using a sampler, or sour gas prepared in the laboratory. This document does not involve the natural gas
sampling process, for which the procedure and safety requirements should follow existing standards.
Currently, there are various methods to determine elemental sulfur solubility, but no unified standard has
been established. Consistent methods are essential for comparable results. This document will ensure valid
data and high-quality analysis. Therefore, a unified solubility determination method is crucial for oil and
gas developers, service companies, investors, governments and other stakeholders. This document aims to
provide a simple and reliable method for determining the elemental sulfur solubility in sour gas fields.
PROOF/ÉPREUVE
v
International Standard ISO 24833:2025(en)
Natural gas — Upstream area — Determination of elemental
sulfur solubility by saturated dissolution method
1 Scope
This document specifies the instruments and equipment, reagents and materials, preparation, measurement
procedure, calculations and precision for determining the solubility of elemental sulfur using the saturated
dissolution method.
This document covers the determination of sour gas samples collected from downhole, wellhead or separator
using a sampler, or sour gas prepared in the laboratory, the sampling process of which is not involved.
2 Normative references
The following document is 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 14532, Natural gas — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions from ISO 14532 and the following apply.
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/
3.1
sour gas
gas containing significant amount of acid gases such as carbon dioxide and sulfide compounds
3.2
elemental sulfur
sulfur that exists in the form of S cyclic molecules at ambient temperature
3.3
elemental sulfur solubility
mass of elemental sulfur dissolved in a unit volume of sour gas when it reaches a saturated state under
certain temperature and pressure conditions, usually expressed in g/m
4 Principle
Elemental sulfur solubility in sour gas is related to the composition of the gas, temperature and pressure.
Under certain temperature and pressure conditions, excessive elemental sulfur is fully dissolved in the
sour gas to reach a saturated state. By lowering the temperature and pressure, the dissolved elemental
sulfur precipitates out of the sour gas. According to “like dissolves like”, carbon disulfide is used to absorb
the sulfur. After fully evaporating the carbon disulfide, the mass of the elemental sulfur is weighed. The
total volume of the released gas is measured. The elemental sulfur solubility in the sour gas under specific
PROOF/ÉPREUVE
ISO 24833:2025(en)
temperature and pressure conditions is calculated based on the mass of elemental sulfur and the total
volume of the released gas.
5 Instrument and apparatus
5.1 Apparatus
The apparatus for determining the elemental sulfur solubility in sour gas should be constructed according
to Figure 1. The requirements and recommendations for each part are as follows:
5.1.1 Sour gas container, the volume of which shall be ≥ 500 mL, the maximum working pressure should
be 100 MPa and the material shall resist hydrogen sulfide corrosion.
5.1.2 Thermostatic chamber, the maximum working temperature of which should be 473 K. The size of
the thermostatic chamber shall accommodate the sample preparation chamber.
5.1.3 Sample preparation chamber, the volume of which should be ≥ 1 L, the maximum working pressure
should be 100 MPa and the material shall resist hydrogen sulfide corrosion.
5.1.4 Back pressure valve, the range of which should be 0 MPa to 100 MPa, the accuracy should be
0,05 MPa and the material shall resist hydrogen sulfide corrosion.
5.1.5 Low temperature cooling chamber, the working temperature of which should be ≤ 278 K, and the
size shall be sufficient to accommodate the absorption tank.
5.1.6 Absorption tank, the volume of which should be ≥ 500 mL, the maximum working pressure should
be 100 MPa and the material shall resist hydrogen sulfide corrosion.
5.1.7 Gas flowmeter, the range of which should be 0 mL/min to 300 mL/min, the accuracy should be ±1 %
of full scale (FS) and the material shall resist hydrogen sulfide corrosion.
5.1.8 Hydrogen sulfide treatment tank, the volume of which should be ≥ 500 mL, the treatment agent
should be iron oxide and the mass shall be ≥ 5 kg.
5.1.9 Beaker, the range of which should be 100 mL to 500 mL.
5.1.10 Metering pump, the maximum working pressure of which should be 100 MPa and the accuracy
should be 0,01 MPa. The working medium shall be distilled water.
-6
5.1.11 Vacuum pump, the vacuum degree of which should be ≤ 0,06×10 MPa.
5.1.12 Gas inlet valve, the maximum working pressure of which should be 100 MPa and the material shall
resist hydrogen sulfide corrosion.
5.1.13 Gas outlet valve, the maximum working pressure of which should be 100 MPa and the material
shall resist hydrogen sulfide corrosion.
5.1.14 Liquid outlet valve, the maximum working pressure of which should be 100 MPa and the material
shall resist hydrogen sulfide corrosion.
5.1.15 Temperature sensor, for measuring the temperature of the sample preparation cylinder, should
have a range of 263 K to 473 K, the accuracy should be ±0,1 K and the material shall resist hydrogen sulfide
corrosion.
PROOF/ÉPREUVE
ISO 24833:2025(en)
5.1.16 Pressure sensor, the range of which should be 0 MPa to 100 MPa, the accuracy should be ±0,25 % of
FS and the material shall resist hydrogen sulfide corrosion.
5.1.17 Filter, the working pressure range of which should be 0 MPa to 100 MPa and the material shall resist
hydrogen sulfide corrosion and shall not react with sulfur or sour gas. The filter should be 300 mesh to
500 mesh.
5.1.18 Pipeline, the maximum working pressure of which should be 100 MPa, the outer diameter should be
6 mm and the material shall resist hydrogen sulfide corrosion.
Key
a sour gas container
b thermostatic chamber
c sample preparation cylinder
d back pressure valve
e low temperature cooling chamber
f absorption tank
g gas flowmeter
h hydrogen sulfide treatment tank
i beaker
j metering pump
k vacuum pump
l gas inlet valve
m gas outlet valve
n liquid outlet valve
o temperature sensor
p pressure sensor
q filter
r pipeline
Figure 1 — Schematic diagram of facilities for determining elemental sulfur in natural gas
5.1.19 Electronic balance, the range of which should be 0 g to 200 g and the sensitivity should be 0,1 mg.
PROOF/ÉPREUVE
© ISO 2
...
ISO/DISPRF 24833:2025(en)
ISO/TC 193/SC 3/WG 10
Secretariat: SAC
Date: 2025-09-1211-27
Natural gas — Upstream area — Determination of elemental sulfur
solubility by saturated dissolution method
Gaz naturel – Zone amont – Détermination de la solubilité du soufre élémentaire par la méthode de dissolution
saturée
PROOF
ISO #####-#:####(X/PRF 24833:2025(en)
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO
at the address below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
E-mail: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO #### 2025 – All rights reserved
ii
ISO/DISPRF 24833:2025(en)
Contents
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Instrument and apparatus . 2
5.1 Apparatus . 2
5.5 Verification/calibration requirements . 5
6 Reagents and materials . 5
7 Preparation . 5
7.1 Recording of ambient temperature and pressure . 5
7.2 Inspection of sour gas sample . 5
7.3 Inspection of apparatus (5.1) for airtightness . 5
7.4 Sample preparation . 6
7.5 Addition of absorbent liquid . 6
7.6 Addition of desulfurizer (6.4) . 6
8 Testing procedure . 6
8.1 Saturated dissolution . 6
8.2 Release of gas . 6
8.3 Absorption of elemental sulfur . 7
8.4 Measurement of gas volume . 7
8.5 Treatment of tail gas . 7
8.6 Collection of elemental sulfur . 7
8.7 Weighing . 7
9 Calculation . 7
10 Precision . 8
10.1 Repeatability limit . 8
10.2 Reproducibility limit . 9
11 Report . 9
12 Practices of safe operation . 10
Annex A (informative) Statistical procedure for estimation of precision . 11
Annex B (informative) Sources of water density at different temperature and pressure
conditions . 15
Bibliography . 16
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
© ISO 2025 – All rights reserved
iii
ISO #####-#:####(X/PRF 24833:2025(en)
4 Principle . 1
5 Instrument and apparatus . 2
6 Reagents and materials . 4
7 Preparation . 4
8 Testing procedure . 5
9 Calculation . 6
10 Precision . 7
11 Report . 8
12 Practices of safe operation . 8
Annex A (informative) Statistical procedure for estimation of precision . 10
A.1 Background . 10
A.2 Experiment . 11
A.3 Data processing . 11
A.4 Precision results . 12
Annex B (informative) Sources of water density at different temperature and pressure conditions 14
Bibliography . 15
iv © ISO #### 2025 – All rights reserved
iv
ISO/DISPRF 24833:2025(en)
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights
in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s)
which may be required to implement this document. However, implementers are cautioned that this may not
represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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 193 Natural gas, Subcommittee SC 3, Upstream
area.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
© ISO 2025 – All rights reserved
v
ISO #####-#:####(X/PRF 24833:2025(en)
Introduction
During the exploitation and transportation of high-sulfur natural gas, elemental sulfur in the gas can be
deposited in reservoirs, wellbores and pipelines. In reservoirs, sulfur deposits can reduce permeability
significantly, which hinders fluid flow and lowers the production efficiency and capacity of gas wells. In
pipelines, sulfur deposits can cause blockage, which in severe cases can lead to ruptures and leaks and increase
safety risks. Additionally, sulfur deposits on equipment and pipelines accelerate corrosion, shorten their
service life and increase maintenance costs. Therefore, sulfur deposition not only results in direct economic
losses to oil and gas operations but also poses safety and environmental risks that require urgent and effective
management measures.
Determining the solubility of sulfur is crucial for addressing sulfur deposits. A comprehensive understanding
of sulfur dissolution characteristics can be achieved by experimentally studying sulfur solubility under various
pressure and temperature conditions. This enables the assessment of the risk of sulfur precipitation under
specific conditions. This knowledge allows engineers to optimize the operation system of sulfur-containing
gas wells and pipelines, e.g. by adjusting pressure and temperature to reduce its precipitation and deposition.
Additionally, determining sulfur solubility can aid in developing models to predict sulfur deposition. These
models quantitatively describe sulfur precipitation patterns, which helps identify potential deposition issues
early so that appropriate preventive measures can be implemented. Through these preventive measures,
sulfur deposits in gas production and transportation can be controlled in a scientific and effective way, thus
minimizing their impact on operations.
The samples tested in this document include sour gas collected from downhole, wellhead or separator by using
a sampler, or sour gas prepared in the laboratory. This document does not involve the natural gas sampling
process, for which the procedure and safety requirements should follow existing standards.
Currently, there are various methods to determine the elemental sulfur solubility, but no unified standard has
been established. Consistent methods are essential for comparable results. This document will ensure valid
data and high-quality analysis. Therefore, a unified solubility determination method is crucial for oil and gas
developers, service companies, investors, governments and other stakeholders. This document aims to
provide a simple and reliable method for determining the elemental sulfur solubility in sour gas fields.
vi © ISO #### 2025 – All rights reserved
vi
ISO/DIS 24833:2025(en)
DRAFT International Standard
Natural gas — Upstream area — Determination of elemental sulfur
solubility by saturated dissolution method
1 Scope
This document specifies the instruments and equipment, reagents and materials, preparation, measurement
procedure, calculations and precision for determining the solubility of elemental sulfur using the saturated
dissolution method.
This document covers the determination of sour gas samples collected from downhole, wellhead or separator
using a sampler, or sour gas prepared in the laboratory, the sampling process of which is not involved.
2 Normative references
The following document is 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 14532, Natural gas — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions from ISO 14532 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— — ISO Online browsing platform: available at https://www.iso.org/obphttps://www.iso.org/obp
— — IEC Electropedia: available at https://www.electropedia.org/https://www.electropedia.org/
3.1 3.1
sour gas
gas containing significant amount of acid gases such as carbon dioxide and sulfide compounds
3.2 3.2
elemental sulfur
sulfur that exists in the form of S cyclic molecules at ambient temperature
3.3 3.3
elemental sulfur solubility
mass of elemental sulfur dissolved in a unit volume of sour gas when it reaches a saturated state under certain
temperature and pressure conditions, usually expressed in g/m
4 Principle
The elementalElemental sulfur solubility in sour gas is related to the composition of the gas, temperature and
pressure. Under certain temperature and pressure conditions, excessive elemental sulfur is fully dissolved in
the sour gas to reach a saturated state. By lowering the temperature and pressure, the dissolved elemental
sulfur precipitates out of the sour gas. According to “like dissolves like”, carbon disulfide is used to absorb the
ISO #####-#:####(X/PRF 24833:2025(en)
sulfur. After fully evaporating the carbon disulfide, the mass of the elemental sulfur is weighed. The total
volume of the released gas is measured. The elemental sulfur solubility in the sour gas under specific
temperature and pressure conditions is calculated based on the mass of elemental sulfur and the total volume
of the released gas.
5 Instrument and apparatus
5.1 Apparatus
The apparatus for determining the elemental sulfur solubility in sour gas should be constructed according to
Figure 1.0. The requirements and recommendations for each part are as follows:
a) The volume of the sourSour gas container, the volume of which shall be ≥ 500 mL, the maximum
working pressure should be 100 MPa and the material shall resist hydrogen sulfide corrosion.
b) The Thermostatic chamber, the maximum working temperature of the thermostatic
chamberwhich should be 473 K. The size of the thermostatic chamber shall accommodate the sample
preparation chamber.
c) The volume of the sampleSample preparation chamber, the volume of which should be ≥ 1 L, the
maximum working pressure should be 100 MPa and the material shall resist hydrogen sulfide corrosion.
d) The range of the backBack pressure valve, the range of which should be 0 MPa to 100 MPa, the
accuracy should be 0,05 MPa and the material shall resist hydrogen sulfide corrosion.
e) The working temperature of the lowLow temperature cooling chamber, the working
temperature of which should be ≤ 278 K, and the size of the low temperature cooling chamber shall be
sufficient to accommodate the absorption tank.
f) The Absorption tank, the volume of the absorption tankwhich should be ≥ 500 mL, the maximum
working pressure should be 100 MPa and the material shall resist hydrogen sulfide corrosion.
g) The range of the gasGas flowmeter, the range of which should be 0 mL/min to 300 mL/min, the
accuracy should be ±1 % of Full Scalefull scale (FS) and the material shall resist hydrogen sulfide corrosion.
h) The volume of the hydrogenHydrogen sulfide treatment tank, the volume of which should be ≥
500 mL, the treatment agent should be iron oxide and the mass shall be ≥ 5 kg.
i) TheBeaker, the range of the beakerwhich should be 100 mL to 500 mL.
j) The Metering pump, the maximum working pressure of the metering pumpwhich should be
100 MPa and the accuracy should be 0,01 MPa. The working medium shall be distilled water.
-
k) The vacuum degree of Vacuum pump, the vacuum pumpdegree of which should be ≤ 0,06×10
MPa.
l) The Gas inlet valve, the maximum working pressure of the gas inlet valvewhich should be 100 MPa
and the material shall resist hydrogen sulfide corrosion.
m) The Gas outlet valve, the maximum working pressure of the gas outlet valvewhich should be
100 MPa and the material shall resist hydrogen sulfide corrosion.
n) The Liquid outlet valve, the maximum working pressure of the liquid outlet valvewhich should be
100 MPa and the material shall resist hydrogen sulfide corrosion.
o) The temperatureTemperature sensor, for measuring the temperature of the sample preparation
cylinder, should have a range of 263 K to 473 K, the accuracy should be ±0,1 K and the material shall resist
hydrogen sulfide corrosion.
2 © ISO #### 2025 – All rights reserved
ISO/DISPRF 24833:2025(en)
p) The Pressure sensor, the range of the pressure sensorwhich should be 0 MPa to 100 MPa, the
accuracy should be ±0,25 % of Full Scale (FS) and the material shall resist hydrogen sulfide corrosion.
q) TheFilter, the working pressure range of the filterwhich should be 0 MPa to 100 MPa and the
material shall resist hydrogen sulfide corrosion and shall not react with sulfur or sour gas. The filter should
be 300 mesh to 500 mesh.
r) The Pipeline, the maximum working pressure of the pipelinewhich should be 100 MPa, the outer
diameter should be 6 mm and the material shall resist hydrogen sulfide corrosion.
Key
a sour gas container
© ISO 2025 – All rights reserved
ISO #####-#:####(X/PRF 24833:2025(en)
b thermostatic chamber
c sample preparation cylinder
d back pressure valve
e low temperature cooling chamber
f absorption tank
g gas flowmeter
h hydrogen sulfide treatment tank
i beaker
j metering pump
k vacuum pump
l gas inlet valve
m gas outlet valve
n liquid outlet valve
o temperature sensor
p pressure sensor
q filter
a sour gas container
b thermostatic chamber
c sample preparation cylinder
d back pressure valve
e low temperature cooling chamber
f absorption tank
g gas flowmeter
h hydrogen sulfide treatment tank
i beaker
j metering pump
k vacuum pump
l gas inlet valve
m gas outlet valve
n liquid outlet valve
o t
...
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