SIST EN ISO 3262-2:2023

Extenders for paints - Specifications and methods of test - Part 2: Baryte (natural barium sulfate) (ISO 3262-2:2023)

This document specifies requirements and corresponding methods of test for baryte (natural barium sulfate).

Füllstoffe - Anforderungen und Prüfverfahren - Teil2: Schwerspat (natürliches Bariumsulfat) (ISO 3262-2:2023)

Dieses Dokument legt Anforderungen und die entsprechenden Prüfverfahren für Schwerspat (natürlich vorkommendes Bariumsulfat) fest.

Matières de charge - Spécifications et méthodes d'essai - Partie 2: Partie 2: Barytine (sulfate de baryum naturel) (ISO 3262-2:2023)

Le présent document spécifie les exigences relatives à la barytine (sulfate de baryum naturel) ainsi que les méthodes d’essai correspondantes.

Polnila - Specifikacije in preskusne metode - 2. del: Barit (naravni barijev sulfat) (ISO 3262-2:2023)

Ta dokument določa zahteve in ustrezne preskusne metode za barit (naravni barijev sulfat).

General Information

• Status: Published
• Public Enquiry End Date: 14-Dec-2022
• Publication Date: 20-Aug-2023
• ICS: 87.060.10 - Pigments and extenders
• Technical Committee: PIP - Pigments and extenders
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 13-Jul-2023
• Due Date: 17-Sep-2023
• Completion Date: 21-Aug-2023
• Ref Project: EN ISO 3262-2:2023 - Extenders - Specifications and methods of test - Part 2: Baryte (natural barium sulfate) (ISO 3262-2:2023)

Relations

• Replaces: SIST EN ISO 3262-2:1998 - Extenders for paints - Specifications and methods of test - Part 2: Baryte (natural barium sulfate) (ISO 3262-2:1998)
• Effective Date: 01-Oct-2023

Overview

EN ISO 3262-2:2023 - Extenders for paints - Specifications and methods of test - Part 2: Baryte (natural barium sulfate) is a harmonized CEN/ISO standard that specifies composition requirements and test methods for natural barium sulfate used as an extender in paints and related coatings. Published in 2023 and endorsed by CEN, it replaces the 1998 edition and is part of the ISO 3262 series covering extenders.

Key Topics and Requirements

This standard defines essential and conditional requirements and the corresponding test procedures. Key technical points include:

• BaSO4 content (barium sulfate): Minimum mass fraction requirements - Grade A ≥ 90%, Grade B ≥ 80%. Two determination routes are allowed:
  • Gravimetric (acid-insoluble barium calculated as BaSO4)
  • X‑ray fluorescence (XRF) (added in the 2023 revision)
• Particle size / residue on 45 µm sieve: For Grade A, maximum 0.5% residue on a 45 µm sieve; other sieve/particle size limits can be agreed between parties.
• Matter volatile at 105 °C: Maximum 0.5% (ISO 787-2 reference).
• pH of aqueous suspension: 6 to 10 (ISO 787-9).
• Loss on ignition, matter soluble in water, resistivity of aqueous extract, colour, lightness and matter soluble in hydrochloric acid: Specified as conditional requirements to be agreed by supplier and purchaser or determined per referenced methods (ISO 3262-1, ISO 787 series).
• Sampling and test reporting: Sampling according to ISO 15528 and standard test reporting requirements are included.
• Analytical notes: Presence of strontium sulfate can affect gravimetric results; subtraction via ICP‑OES or alternative analysis is suggested.

Practical Applications and Users

EN ISO 3262-2:2023 is used for quality control, procurement, specification and regulatory compliance where baryte is supplied or used as a pigment/extender. Typical users:

• Paint, coatings and ink manufacturers specifying extender quality
• Mineral suppliers and baryte producers certifying product grades
• Testing and QC laboratories performing BaSO4 content, sieve residue, pH and related analyses
• Procurement and standards teams drafting material specifications and supplier contracts

Benefits include clear acceptance criteria for baryte/barium sulfate, harmonized test methods (gravimetric and XRF), and reduced disputes through agreed conditional properties.

Related Standards

Relevant referenced standards include: ISO 3262-1, ISO 787 series (Parts 2, 3, 7, 9, 14), ISO 15528 (sampling), ISO 12677 (XRF fused-bead method), ISO 3696 (water quality) and ISO 18451-1 (terminology). These form the test-method and terminology framework for implementing EN ISO 3262-2:2023.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2023
Nadomešča:
SIST EN ISO 3262-2:1998
Polnila - Specifikacije in preskusne metode - 2. del: Barit (naravni barijev sulfat)
(ISO 3262-2:2023)
Extenders for paints - Specifications and methods of test - Part 2: Baryte (natural barium
sulfate) (ISO 3262-2:2023)
Füllstoffe - Anforderungen und Prüfverfahren - Teil2: Schwerspat (natürliches
Bariumsulfat) (ISO 3262-2:2023)
Matières de charge - Spécifications et méthodes d'essai - Partie 2: Partie 2: Barytine
(sulfate de baryum naturel) (ISO 3262-2:2023)
Ta slovenski standard je istoveten z: EN ISO 3262-2:2023
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 3262-2
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2023
EUROPÄISCHE NORM
ICS 87.060.10 Supersedes EN ISO 3262-2:1998
English Version
Extenders for paints - Specifications and methods of test -
Part 2: Baryte (natural barium sulfate) (ISO 3262-2:2023)
Matières de charge - Spécifications et méthodes d'essai Füllstoffe - Anforderungen und Prüfverfahren - Teil2:
- Partie 2: Partie 2: Barytine (sulfate de baryum Schwerspat (natürliches Bariumsulfat) (ISO 3262-
naturel) (ISO 3262-2:2023) 2:2023)
This European Standard was approved by CEN on 14 January 2023.

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, Türkiye 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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3262-2:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 3262-2:2023) 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 December 2023, and conflicting national standards
shall be withdrawn at the latest by December 2023.
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 3262-2:1998.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 3262-2:2023 has been approved by CEN as EN ISO 3262-2:2023 without any
modification.
INTERNATIONAL ISO
STANDARD 3262-2
Second edition
2023-06
Extenders — Specifications and
methods of test —
Part 2:
Baryte (natural barium sulfate)
Matières de charge — Spécifications et méthodes d'essai —
Partie 2: Partie 2: Barytine (sulfate de baryum naturel)
Reference number
ISO 3262-2:2023(E)
ISO 3262-2:2023(E)
© ISO 2023
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 3262-2:2023(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 BaSO content . 3
6.1 General . 3
6.2 Reagents . 3
6.3 Apparatus . 3
6.4 Procedure . 4
6.5 Expression of results . . 5
7  Determination of BaSO content (X-ray fluorescent analysis) . 5
7.1 General . 5
7.2 Reagents . 5
7.3 Apparatus . 6
7.4 Procedure . 6
7.5 Expression of results . 6
8  Determination of matter soluble in hydrochloric acid . 6
8.1 Reagents . 6
8.2 Apparatus . 6
8.3 Procedure . 6
8.4 Expression of results . 7
9  Test report . 7
Bibliography . 8
iii
ISO 3262-2:2023(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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use
of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO had not received
notice of (a) patent(s) which may be required to implement this document. However, implementers are
cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents. ISO shall not be held responsible for identifying any or all
such patent rights.
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, dyestuffs 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 3262-2:1998), which has been technically
revised.
The main changes are as follows:
— the title has been changed to “Extenders”;
— an additional method for BaSO content (X-ray fluorescent analysis) has been added;
— 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
INTERNATIONAL STANDARD ISO 3262-2:2023(E)
Extenders — Specifications and methods of test —
Part 2:
Baryte (natural barium sulfate)
1  Scope
This document specifies requirements and corresponding methods of test for baryte (natural barium
sulfate).
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 787-3, General methods of test for pigments and extenders — Part 3: Determination of matter soluble
in water — Hot extraction method
ISO 787-7, General methods of test for pigments and extenders — Part 7: Determination of residue on sieve
— Water method — Manual procedure
ISO 787-9, General methods of test for pigments and extenders —
...