ISO 10238:1999

INTERNATIONAL ISO
STANDARD 10238
First edition
1999-12-15
Carbonaceous materials used in the
production of aluminium — Pitch for
electrodes — Determination of sulfur
content by an instrumental method
Produits carbonés utilisés pour la production de l'aluminium — Brai pour
électrodes — Dosage du soufre par une méthode instrumentale
Reference number
ISO 10238:1999(E)
©
ISO 1999

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ISO 10238:1999(E)
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ISO 10238:1999(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
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Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 10238 was prepared by Technical Committee ISO/TC 47, Chemistry, Subcommittee
SC 7, Aluminium oxide, cryolite, aluminium fluoride, sodium fluoride, carbonaceous products for the aluminium
industry.
© ISO 1999 – All rights reserved iii

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INTERNATIONAL STANDARD ISO 10238:1999(E)
Carbonaceous materials used in the production of aluminium —
Pitch for electrodes — Determination of sulfur content by an
instrumental method
1 Scope
This International Standard describes a method for determining the sulfur content of pitch used in the production of
aluminium. The method is applicable to pitches of both coal tar and petroleum origin, provided that they contain
between 0,1 % and 4,0 % by mass of sulfur.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, any of these
publications do not apply. However, parties to agreements based on this International Standard are encouraged to
investigate the possibility of applying the most recent editions of the normative documents indicated below. For
undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC
maintain registers of currently valid International Standards.
ISO 565, Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of
openings.
ISO 3696, Water for analytical laboratory use — Specification and test methods.
ISO 4793, Laboratory sintered (fritted) filters — Porosity grading, classification and designation.
ISO 6257, Carbonaceous materials used in the production of aluminium — Pitch for electrodes — Sampling.
3 Principle
A known mass of
...