Solid mineral fuels -- Determination of sulfur by IR spectrometry

ISO 19579:2006 specifies an alternative method of determining the total sulfur content of hard coal, brown coal, and lignite by high-temperature combustion and infrared absorption using commercially available instruments. This method has been shown to be applicable to coal samples having an ash yield of less than 40 %.

Combustibles minéraux solides -- Détermination du soufre par spectrométrie infrarouge

General Information

Status
Published
Publication Date
02-Oct-2006
Current Stage
6060 - International Standard published
Start Date
12-Sep-2006
Completion Date
03-Oct-2006
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ISO 19579:2006 - Solid mineral fuels -- Determination of sulfur by IR spectrometry
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INTERNATIONAL ISO
STANDARD 19579
First edition
2006-10-01
Solid mineral fuels — Determination of
sulfur by IR spectrometry
Combustibles minéraux solides — Détermination du soufre par
spectrométrie infrarouge
Reference number
ISO 19579:2006(E)
ISO 2006
---------------------- Page: 1 ----------------------
ISO 19579:2006(E)
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ii © ISO 2006 – All rights reserved
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ISO 19579:2006(E)
Contents Page

Foreword............................................................................................................................................................ iv

Introduction ........................................................................................................................................................ v

1 Scope ..................................................................................................................................................... 1

2 Normative references ........................................................................................................................... 1

3 Principle................................................................................................................................................. 1

4 Apparatus .............................................................................................................................................. 1

5 Reagents................................................................................................................................................ 2

6 Preparation of sample .......................................................................................................................... 2

7 Procedure .............................................................................................................................................. 3

8 Calibration check.................................................................................................................................. 3

9 Expression of results ........................................................................................................................... 3

10 Precision................................................................................................................................................ 3

11 Test report ............................................................................................................................................. 4

© ISO 2006 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 19579:2006(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 19579 was prepared by Technical Committee ISO/TC 27, Solid mineral fuels, Subcommittee SC 5,

Methods of analysis.
iv © ISO 2006 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 19579:2006(E)
Introduction

Sulfur is normally present in coal in three forms; inorganic sulfides such as pyrite (FeS ), inorganic sulfates

associated with the mineral matter and organic sulfur in the carbonaceous substance.

This International Standard describes a high-temperature combustion/infrared absorption method of analysis,

which is used to determine the total sulfur content of coal.
© ISO 2006 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 19579:2006(E)
Solid mineral fuels — Determination of sulfur by IR
spectrometry
1 Scope

This International Standard specifies an alternative method of determining the total sulfur content of hard coal,

brown coal, and lignite by high-temperature combustion and infrared (IR) absorption using commercially

available instruments.

This method has been shown to be applicable to coal samples having an ash yield of less than 40 %.

2 Normative references

The following referenced documents are indispensable for the application 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 334, Solid mineral fuels — Determination of total sulfur — Eschka method

ISO 351, Solid mineral fuels — Determination of total sulfur — High temperature combustion method

ISO 687, Solid mineral fuels — Coke — Determination of moisture in the general analysis test sample

ISO 5068-2, Brown coals and lignites — Determination of moisture content — Part 2: Indirect gravimetric

method for moisture in the analysis sample

ISO 11722, Solid mineral fuels — Hard coal — Determination of moisture in the general analysis test sample

by drying in nitrogen
3 Principle
The coal sample is combusted at 1
...

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