ISO 11722:2013
(Main)Solid mineral fuels -- Hard coal -- Determination of moisture in the general analysis test sample by drying in nitrogen
Solid mineral fuels -- Hard coal -- Determination of moisture in the general analysis test sample by drying in nitrogen
ISO 11722:2013 specifies a method for determining the moisture in the general analysis test sample of hard coal by drying in nitrogen.
Combustibles minéraux solides -- Houille -- Détermination de l'humidité de l'échantillon pour analyse par dessiccation en atmosphère d'azote
General Information
RELATIONS
Standards Content (sample)
INTERNATIONAL ISO
STANDARD 11722
Second edition
2013-07-01
Solid mineral fuels — Hard coal —
Determination of moisture in the
general analysis test sample by
drying in nitrogen
Combustibles minéraux solides — Houille — Détermination
de l’humidité de l’échantillon pour analyse par dessiccation en
atmosphère d’azote
Reference number
ISO 11722:2013(E)
ISO 2013
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ISO 11722:2013(E)
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ii © ISO 2013 – All rights reserved
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ISO 11722:2013(E)
Contents Page
Foreword ........................................................................................................................................................................................................................................iv
Introduction ..................................................................................................................................................................................................................................v
1 Scope ................................................................................................................................................................................................................................. 1
2 Normatives references ................................................................................................................................................................................... 1
3 Terms and definitions ..................................................................................................................................................................................... 1
4 Principle ........................................................................................................................................................................................................................ 1
5 Reagent ........................................................................................................................................................................................................................... 1
6 Apparatus ..................................................................................................................................................................................................................... 1
7 Preparation of the test sample ............................................................................................................................................................... 2
8 Procedure..................................................................................................................................................................................................................... 2
9 Expression of results ........................................................................................................................................................................................ 2
10 Precision ....................................................................................................................................................................................................................... 2
10.1 Repeatability limit ................................................................................................................................................................................ 2
10.2 Reproducibility limit .......................................................................................................................................................................... 2
11 Test report ................................................................................................................................................................................................................... 3
Annex A (informative) Example of a suitable oven ................................................................................................................................ 4
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ISO 11722:2013(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. www.iso.org/directivesAttention 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. www.iso.org/patentsAny trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.The committee responsible for this document is ISO/TC 27, Solid mineral fuels, Subcommittee SC 5,
Methods of analysis.This second edition cancels and replaces the first edition (ISO 11722:1999), of which it constitutes a
minor revision.iv © ISO 2013 – All rights reserved
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ISO 11722:2013(E)
Introduction
The determination of the moisture in the general analysis test sample is required to correct the results
of certain analytical determinations, e.g. volatile matter and hydrogen, for the effect of water in the
determinatio...
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