EN ISO 3262-19:2021

SLOVENSKI STANDARD
01-junij-2021
Nadomešča:
SIST EN ISO 3262-19:2001
Polnila - Specifikacije in preskusne metode - 19. del: Oborjeni silicijev dioksid (ISO
3262-19:2021)
Extenders - Specifications and methods of test - Part 19: Precipitated silica (ISO 3262-
19:2021)
Füllstoffe - Anforderungen und Prüfverfahren - Teil 19: Gefällte Kieselsäure (ISO 3262-
19:2021)
Matières de charge - Spécifications et méthodes d'essai - Partie 19: Silice précipitée
(ISO 3262-19:2021)
Ta slovenski standard je istoveten z: EN ISO 3262-19:2021
ICS:
87.060.10 Pigmenti in polnila Pigments and extenders
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 3262-19
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2021
EUROPÄISCHE NORM
ICS 87.060.10 Supersedes EN ISO 3262-19:2000
English Version
Extenders - Specifications and methods of test - Part 19:
Precipitated silica (ISO 3262-19:2021)
Matières de charge - Spécifications et méthodes d'essai Füllstoffe - Anforderungen und Prüfverfahren - Teil 19:
- Partie 19: Silice précipitée (ISO 3262-19:2021) Gefällte Kieselsäure (ISO 3262-19:2021)
This European Standard was approved by CEN on 19 March 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3262-19:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 3262-19:2021) has been prepared by Technical Committee ISO/TC 256
"Pigments, dyestuffs and extenders" in collaboration with Technical Committee CEN/TC 298 “Pigments
and extenders” the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by October 2021, and conflicting national standards shall
be withdrawn at the latest by October 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 3262-19:2000.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 3262-19:2021 has been approved by CEN as EN ISO 3262-19:2021 without any
modification.
INTERNATIONAL ISO
STANDARD 3262-19
Second edition
2021-03
Extenders — Specifications and
methods of test —
Part 19:
Precipitated silica
Matières de charge — Spécifications et méthodes d'essai —
Partie 19: Silice précipitée
Reference number
ISO 3262-19:2021(E)
©
ISO 2021
ISO 3262-19:2021(E)
© ISO 2021
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
ii © ISO 2021 – All rights reserved

ISO 3262-19:2021(E)
Contents  Page
Foreword .iv
1  Scope . 1
2  Normative references . 1
3  Terms and definitions . 1
4  Requirements and test methods . 2
5  Sampling . 2
6  Determination of silica content . 2
6.1 Principle . 2
6.2 Reagents. 3
6.3 Apparatus . 3
6.4 Procedure . 4
6.4.1 Number of determinations. 4
6.4.2 Test portion . 4
6.4.3 Determination . 4
6.4.4 Determination of the total loss on ignition . 4
6.5 Expression of results . 5
6.6 Precision . 5
6.6.1 Repeatability, r .5
6.6.2 Reproducibility, R .5
7  Determination of carbon content . 5
7.1 Principle . 5
7.2 Reagents and materials . 6
7.3 Apparatus . 6
7.4 Procedure . 6
7.4.1 Preparation of apparatus . 6
7.4.2 Calibration . 7
7.4.3 Determination . 7
7.5 Expression of results . 7
7.6 Precision . 7
8  Determination of residue on sieve . 7
8.1 Principle . 7
8.2 Materials . 8
8.3 Apparatus . 8
8.4 Procedure . 8
8.4.1 Number of determinations. 8
8.4.2 Test portion . 8
8.4.3 Determination . 8
8.5 Expression of results . 9
8.6 Precision . 9
9  Test report . 9
Bibliography .10
ISO 3262-19:2021(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 (see www .iso .org/ directives).
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. 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 (see www .iso .org/ patents).
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 256, Pigments, dyestuff and extenders,
in collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/
TC 298, Pigments and extenders, in accordance with the Agreement on technical cooperation between
ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 3262-19:2000), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the main title has been changed from "Extenders for paints" to "Extenders";
— in Table 1, carbon content has been revised and organic surface has been refined;
— in 6.3.8, magnesium perchlorate has been changed to an example for a desiccant;
— in 7.2.3, suitable examples for carbon steel have been added;
— the text has been editorially revised and the normative references have been updated.
A list of all parts in the ISO 3262 series can be found on the ISO website.
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.
iv © ISO 2021 – All rights reserved

INTERNATIONAL STANDARD ISO 3262-19:2021(E)
Extenders — Specifications and methods of test —
Part 19:
Precipitated silica
1  Scope
This document specifies requirements and corresponding methods of test for precipitated silica.
2  Normative references
The following documents are 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 787-2, General methods of test for pigments and extenders — Part 2: Determination of matter volatile
at 105 °C
ISO 787-5, General methods of test for pigments and extenders — Part 5: Determination of oil
absorption value
ISO 787-9, General methods of test for pigments and extenders — Part 9: Determination of pH value of an
aqueous suspension
ISO 787-11, General methods of test for pigments and extenders — Part 11: Determination of tamped
volume and apparent density after tamping
ISO 3262-1, Extenders — Specifications and methods of test — Part 1: Introduction and general test methods
ISO 3696, Water for analytical laboratory use — Specification and test methods
ISO 5794-1:2010, Rubber compounding ingredients — Silica, precipitated, hydrated — Part 1: Non-
rubber tests
ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling
ISO 18451-1, Pigments, dyestuffs and extenders — Terminology — Part 1: General terms
3  Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 18451-1 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
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