SIST EN ISO 3262-4:2023

Extenders - Specifications and methods of test - Part 4: Whiting (ISO 3262-4:2022)

This document specifies requirements and corresponding methods of test for whiting.

Füllstoffe - Anforderungen und Prüfverfahren - Teil 4: Kreide (ISO 3262-4:2023)

Dieses Dokument legt Anforderungen und die entsprechenden Prüfverfahren für Kreide fest.

Matières de charge - Spécifications et méthodes d'essai - Partie 4: Craie (ISO 3262-4:2023)

Le présent document spécifie les exigences relatives à la craie ainsi que les méthodes d'essai correspondantes.

Polnila - Specifikacije in preskusne metode - 4. del: Belilo (ISO 3262-4:2023)

Ta dokument določa zahteve in ustrezne preskusne metode za belilo.

General Information

• Status: Published
• Public Enquiry End Date: 14-Dec-2022
• Publication Date: 22-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: 23-Aug-2023
• Ref Project: EN ISO 3262-4:2023 - Extenders - Specifications and methods of test - Part 4: Whiting (ISO 3262-4:2023)

Relations

• Replaces: SIST EN ISO 3262-4:1998 - Extenders for paints - Specifications and methods of test - Part 4: Whiting (ISO 3262-4:1998)
• Effective Date: 01-Oct-2023

Overview

EN ISO 3262-4:2023 (CEN adoption of ISO 3262-4:2023) specifies the requirements and corresponding test methods for whiting, a natural calcium carbonate (chalk) used as an extender in paints, coatings, plastics and other formulations. This second edition supersedes EN ISO 3262-4:1998 and aligns essential quality criteria, sampling and analytical procedures to ensure consistent material performance.

Key topics and technical requirements

• Material definition: Whiting is defined as natural calcium carbonate derived from chalk, characterized by microcrystalline calcitic crystals and residual shell fragments.
• Essential requirements (Table 1) - examples:
  • CaCO3 content: Grade A ≥ 98% mass fraction; Grade B ≥ 95%.
  • Matter volatile at 105 °C, loss on ignition (max 46%) and matter soluble in water (max 0.5%).
  • pH of aqueous suspension: 8.0 to 9.5.
  • Matter insoluble in hydrochloric acid: max 2% (Grade A) and 5% (Grade B); method and calculation are specified.
• Conditional requirements (Table 2) - to be agreed between parties:
  • Residue on 45 µm sieve, particle size distribution (instrumental method - now ISO 8130-13 laser diffraction), colour/lightness and resistivity of aqueous extract (ISO 787-14).
• Sampling and test procedures:
  • Sampling according to ISO 15528.
  • Detailed laboratory method for determination of matter insoluble in HCl (sample ~10 g, approx. 25% HCl, boil 15 min, filter on 0.8 µm membrane, dry at 105 ± 2 °C and weigh; formula provided).
• Normative references include ISO 787 parts, ISO 3262-1, ISO 3696, ISO 8130-13 and ISO 18451-1.

Applications and users

This standard is intended for stakeholders who manufacture, buy, test or regulate extenders and raw materials:

• Paints & coatings manufacturers - to specify filler performance and ensure batch-to-batch consistency.
• Quality control and testing laboratories - for standardized test methods and reporting.
• Raw material suppliers and procurement teams - to define contractual requirements for whiting grades.
• Plastics, paper and adhesive formulators - where calcium carbonate filler properties affect processing and final properties.
• Standards writers and regulatory bodies - for harmonized product definitions and conformity assessment.

Benefits include improved material consistency, reliable performance in formulations, and clearer trade/compliance terms.

Related standards

• ISO 3262-1 - Introduction and general test methods for extenders
• ISO 787 series - General methods of test for pigments and extenders
• ISO 8130-13 - Particle size analysis by laser diffraction
• ISO 15528 - Sampling of paints, varnishes and raw materials
• ISO 18451-1 - Terminology for pigments, dyestuffs and extenders

Keywords: EN ISO 3262-4:2023, whiting, extenders, calcium carbonate, specifications and methods of test, pigments and extenders, particle size, matter insoluble in hydrochloric acid.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2023
Nadomešča:
SIST EN ISO 3262-4:1998
Polnila - Specifikacije in preskusne metode - 4. del: Belilo (ISO 3262-4:2023)
Extenders - Specifications and methods of test - Part 4: Whiting (ISO 3262-4:2022)
Füllstoffe - Anforderungen und Prüfverfahren - Teil 4: Kreide (ISO 3262-4:2023)
Matières de charge - Spécifications et méthodes d'essai - Partie 4: Craie (ISO 3262-
4:2023)
Ta slovenski standard je istoveten z: EN ISO 3262-4:2023
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 3262-4
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2023
EUROPÄISCHE NORM
ICS 87.060.10 Supersedes EN ISO 3262-4:1998
English Version
Extenders - Specifications and methods of test - Part 4:
Whiting (ISO 3262-4:2022)
Matières de charge - Spécifications et méthodes d'essai Füllstoffe - Anforderungen und Prüfverfahren - Teil 4:
- Partie 4: Craie (ISO 3262-4:2023) Kreide (ISO 3262-4:2023)
This European Standard was approved by CEN on 23 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 3262-4:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 3262-4:2023) 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 3262-4:1998.
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 3262-4:2023 has been approved by CEN as EN ISO 3262-4:2023 without any
modification.
INTERNATIONAL ISO
STANDARD 3262-4
Second edition
2023-06
Extenders — Specifications and
methods of test —
Part 4:
Whiting
Matières de charge — Spécifications et méthodes d'essai —
Partie 4: Craie
Reference number
ISO 3262-4:2023(E)
ISO 3262-4:2023(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 3262-4:2023(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 matter insoluble in hydrochloric acid . 3
6.1 Reagents . 3
6.2 Apparatus . 3
6.3 Procedure . 3
6.4 Expression of results . . 3
7  Test report . 4
iii
ISO 3262-4:2023(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
...