SIST EN ISO 3262-8:2000

SLOVENSKI STANDARD
SIST EN ISO 3262-8:2000
01-januar-2000
Polnila za barve - Specifikacije in metode preskušanja - 8. del: Naravni klej (ISO
3262-8:1999)
Extenders for paints - Specifications and methods of test - Part 8: Natural clay (ISO 3262
-8:1999)
Füllstoffe für Beschichtungsstoffe - Anforderungen und Prüfverfahren - Teil 8: Natürlicher
Kaolin (ISO 3262-8:1999)
Matieres de charge pour peintures - Spécifications et méthodes d'essai - Partie 8: Kaolin
naturel (ISO 3262-8:1999)
Ta slovenski standard je istoveten z: EN ISO 3262-8:1999
ICS:
87.060.10 Pigmenti in polnila Pigments and extenders
SIST EN ISO 3262-8:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 3262-8:2000

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SIST EN ISO 3262-8:2000

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SIST EN ISO 3262-8:2000

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SIST EN ISO 3262-8:2000

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SIST EN ISO 3262-8:2000

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SIST EN ISO 3262-8:2000
INTERNATIONAL ISO
STANDARD 3262-8
First edition
1999-10-01
Extenders for paints — Specifications and
methods of test —
Part 8:
Natural clay
Matières de charge pour peintures — Spécifications et méthodes d'essai —
Partie 8: Kaolin naturel
A
Reference number
ISO 3262-8:1999(E)

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SIST EN ISO 3262-8:2000
ISO 3262-8:1999(E)
Contents
1 Scope .1
2 Normative references .1
3 Term and definition .2
4 Requirements and test methods.2
5 Sampling.3
6 Determination of particle-size distribution.3
7 Test report .6
©  ISO 1999
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic
or mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet iso@iso.ch
Printed in Switzerland
ii

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SIST EN ISO 3262-8:2000
© ISO
ISO 3262-8:1999(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
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 3.
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.
International Standard ISO 3262-8 was prepared by Technical Committee ISO/TC 35, Paints and varnishes,
Subcommittee SC 2, Pigments and extenders.
Together with the other parts (see below), this part of ISO 3262 cancels and replaces ISO 3262:1975, which has
been technically revised. Part 1 comprises the definition of the term extender and a number of test methods that are
applicable to most extenders, whilst part 2 and the following parts specify requirements and, where appropriate,
particular test methods for individual extenders.
At present, the following parts of ISO 3262 are published or in preparation, under the general title Extenders for
paints — Specifications and methods of test:
 Part 1: Introduction and general test methods
 Part 2: Barytes (natural barium sulfate)

Part 3: Blanc fixe
 Part 4: Whiting
 Part 5: Natural crystalline calcium carbonate
 Part 6: Precipitated calcium carbonate
 Part 7: Dolomite
 Part 8: Natural clay
 Part 9: Calcined clay
 Part 10: Natural talc/chlorite in lamellar form
 Part 11: Natural talc, in lamellar form, containing carbonates
 Part 12: Muscovite-type mica
 Part 13: Natural quartz (ground)
 Part 14: Cristobalite
 Part 15: Vitreous silica
 Part 16: Aluminium hydroxides
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SIST EN ISO 3262-8:2000
© ISO
ISO 3262-8:1999(E)
 Part 17: Precipitated calcium silicate
 Part 18: Precipitated sodium aluminium silicate

Part 19: Precipitated silica
 Part 20: Fumed silica
 Part 21: Silica sand (unground natural quartz)
 Part 22: Kieselguhr
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SIST EN ISO 3262-8:2000
INTERNATIONAL STANDARD  © ISO ISO 3262-8:1999(E)
Extenders for paints — Specifications and methods of test —
Part 8:
Natural clay
1 Scope
This part of ISO 3262 specifies requirements and corresponding methods of test for natural clay.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this part of ISO 3262. For dated references, subsequent amendments to, or revisions of, any of these publications
do not apply. However, parties to agreements based on this part of ISO 3262 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 787-2:1981, General methods of test for pigments and extenders — Part 2: Determination of matter volatile at
105 °C.
1)
ISO 787-3:— , General methods of test for pigments and extenders — Part 3: Determination of matter soluble in
water — Hot extraction method.
ISO 787-7:1981, General methods of test for pigments and extenders — Part 7: Determination of residue on
sieve — Water method — Manual procedure.
ISO 787-9:1981, General methods of test for pigments and extenders — Part 9: Determination of pH value of an
aqueous suspension.
ISO 787-14:1973, General methods of test for pigments — Part 14: Determination of resistivity of aqueous extract.
ISO 3262-1:1997, Extenders for paints — Specifications and methods of test — Part 1: Introduction and general test
methods.
ISO 3696:1987, Water for analytical laboratory use — Specification and test methods.
2)
ISO 15528:— , Paints and varnishes — Sampling.

1) To be published. (Revision of ISO 787-3:1979)
2) To be published. (Revision of ISO 842:1984 and ISO 1512:1991)
1

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SIST EN ISO 3262-8:2000
© ISO
ISO 3262-8:1999(E)
3 Term and definition
For the purposes of this part of ISO 3262, the following term and definition apply:
3.1
natural clay
naturally occurring hydrated aluminium silicates with a lamellar crystal structure, predominantly consisting of
kaolinite of chemical composition Al O ⋅2SiO ⋅2H O çAl [(OH) /Si O ]
2 3 2 2 4 8 4 10
4 Requirements and test methods
For natural clay complying with this part of ISO 3262, the essential requirements are specified in Table 1 and the
conditional requirements are listed in Table 2.
Table 1 — Essential requirements
Requirement
Characteristic Unit Test method
Grade A Grade B Grade C Grade D
Kaolinite content, min. % (m/m) 90 85 70 50 X-ray diffraction or to
be agreed between
the interested parties
Residue on 45 μm sieve, % (m/m) 0,02 0,05 0,1 0,5 ISO 787-7
max.
Particle-size distribution % (m/m) 90 70 40 20 See clause 6
(Andreasen method),
, 2 μm, min.
a
Matter volatile at 105 °C, % (m/m) 1 ISO 787-2
max.
Loss on ignition % (m/m) 12 to 14 11 to 14 10 to 14 6 to 9 ISO 3262-1
Matter soluble in water (hot % (m/m) 0,3 0,5 ISO 787-3
extraction method), max.
pH value of aqueous 4 to 9 ISO 787-9
suspension
a
By agreement between the interested parties, test portions other than 10 g may be used.
Table 2 — Conditional requirements
Characteristic Unit Requirement Test method
Particle-size distribution % (m/m) To be agreed
(instrumental method) between the
a
interested parties
Colour To be agreed between the interested parties ISO 3262-1
Lightness To be agreed
between the
b
interested parties
Reistivity of aqueous extract W·m ISO 787-14
a
A general description of a sedimentation method using X-ray absorption is given in EN 725-5:1996, Advanced technical ceramics —
Methods of test for ceramic powders — Part 5: Determination of the particle size distribution.
b
Test method in preparation.
2

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SIST EN ISO 3262-8:2000
© ISO
ISO 3262-8:1999(E)
5 Sampling
Take a representative sample of the product to be tested, as described in ISO 15528.
6 Determination of particle-size distribution
6.1 General
3)
Because of its simple procedure and good reprodu
...