SIST EN ISO 3262-6:2023

Extenders - Specifications and methods of test - Part 6: Precipitated calcium carbonate (ISO 3262-6:2022)

This document specifies requirements and corresponding methods of test for precipitated calcium carbonate.

Füllstoffe - Anforderungen und Prüfverfahren - Teil6: Gefälltes Calciumcarbonat (ISO 3262-6:2022)

Dieses Dokument legt Anforderungen an und entsprechende Prüfverfahren für gefälltes Calciumcarbonat fest.

Matières de charge - Spécifications et méthodes d’essai - Partie 6: Carbonate de calcium précipité (ISO 3262-6:2022)

Le présent document spécifie les exigences relatives au carbonate de calcium précipité ainsi que les méthodes d’essai correspondantes.

Polnila - Specifikacije in metode preskušanja - 6. del: Oborjeni kalcijev karbonat (ISO 3262-6:2022)

Ta dokument določa zahteve in ustrezne preskusne metode za oborjeni kalcijev karbonat.

General Information

• Status: Published
• Public Enquiry End Date: 02-Apr-2022
• Publication Date: 09-Feb-2023
• ICS: 87.060.10 - Pigments and extenders
• Technical Committee: PIP - Pigments and extenders
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 21-Dec-2022
• Due Date: 25-Feb-2023
• Completion Date: 10-Feb-2023
• Ref Project: EN ISO 3262-6:2022 - Extenders - Specifications and methods of test - Part 6: Precipitated calcium carbonate (ISO 3262-6:2022)

Relations

• Replaces: SIST EN ISO 3262-6:1998 - Extenders for paints - Specifications and methods of test - Part 6: Precipitated calcium carbonate (ISO 3262-6:1998)
• Effective Date: 01-Mar-2023

Overview

SIST EN ISO 3262-6:2023 specifies the requirements and test methods for precipitated calcium carbonate (PCC) used as an extender in various industrial applications. Developed by ISO/TC 256 in collaboration with CEN/TC 298, this standard ensures consistent quality and reliable testing for PCC products across Europe and internationally. It supersedes the previous edition EN ISO 3262-6:1998 and includes updated technical specifications vital for manufacturers, quality control laboratories, and end-users.

This standard targets industries requiring precise quality control of pigments and extenders, particularly where PCC is involved. It defines essential properties such as chemical composition, particle size, and purity, as well as detailed procedures for their accurate determination.

Key Topics

• Scope and Purpose

  • Sets out minimum requirements for precipitated calcium carbonate.
  • Details standardized test methods for reliable quality assessment.

• Material Definition

  • PCC is defined as synthetic calcium carbonate with specific crystalline structures, either trigonal (calcite) or rhombic bipyramidal (aragonite), possibly with surface modifications.

• Essential Requirements (Table 1)

  • Minimum calcium carbonate content: 90% by mass.
  • Maximum residue on 45 µm sieve: 0.1% to ensure fine particle distribution.
  • Matter volatile at 105 °C: max 1.0% to evaluate moisture and other volatiles.
  • Maximum loss on ignition: 50% (method agreed upon by parties).
  • Matter soluble in water: max 0.2%.
  • pH of aqueous suspension: range 7 to 11.
  • Matter insoluble in hydrochloric acid: max 0.2%.

• Conditional Requirements (Table 2)

  • Particle size distribution (D50, D90) - to be agreed per application.
  • Colour and lightness assessment methodologies.
  • Resistivity of aqueous extract for electrical properties.

• Test Methods

  • Sampling per ISO 15528 ensures representative samples.
  • Two main methods for determining matter insoluble in hydrochloric acid:
    • Oven Method: Uses 25% hydrochloric acid and membrane filtration.
    • Furnace Method: Recommended for surface-modified PCC with 17% hydrochloric acid.
  • Other referenced ISO test parts cover volatile matter, solubility, pH, and colorimetric analysis.

Applications

• Paints and Coatings: PCC enhances brightness, opacity, and consistency in paints by serving as a filler/extender. Compliance with EN ISO 3262-6 ensures optimal dispersion and chemical stability.

• Plastics Industry: PCC improves the mechanical properties and surface finish of plastics. Standardized PCC helps maintain product uniformity.

• Paper Manufacturing: In papermaking, PCC acts as a pigment and filler to improve brightness and printability. This standard supports quality control for consistent paper attributes.

• Rubber and Adhesives: PCC is used to modify viscosity and mechanical strength; meeting specific requirements assures performance in formulations.

• Laboratory Quality Assurance: Enables labs to perform accurate and comparable chemical and physical tests of PCC batches, ensuring reproducibility and regulatory compliance.

Related Standards

• EN ISO 3262-1: Introduction and general test methods for extenders.
• ISO 787 Series: General methods of testing pigments and extenders covering volatile matter, solubility, pH, colour, and particle size.
• ISO 3696: Specifies quality standards for water used in analytical lab testing.
• ISO 15528: Guidelines for appropriate sampling procedures of raw materials including PCC.
• ISO 18451-1: Terminology for pigments, dyestuffs, and extenders.

Summary

SIST EN ISO 3262-6:2023 is a crucial standard for manufacturers, suppliers, and end-users of precipitated calcium carbonate, detailing essential quality requirements and testing protocols that promote product consistency, safety, and performance across multiple industries. Adopting this standard supports regulatory compliance, improves product reliability, and enhances overall market confidence in PCC materials.

Keywords: precipitated calcium carbonate, PCC, extenders, pigment fillers, SIST EN ISO 3262-6:2023, quality control, test methods, particle size, chemical composition, industry standards.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2023
Nadomešča:
SIST EN ISO 3262-6:1998
Polnila - Specifikacije in metode preskušanja - 6. del: Oborjeni kalcijev karbonat
(ISO 3262-6:2022)
Extenders - Specifications and methods of test - Part 6: Precipitated calcium carbonate
(ISO 3262-6:2022)
Füllstoffe - Anforderungen und Prüfverfahren - Teil6: Gefälltes Calciumcarbonat (ISO
3262-6:2022)
Matières de charge - Spécifications et méthodes d’essai - Partie 6: Carbonate de
calcium précipité (ISO 3262-6:2022)
Ta slovenski standard je istoveten z: EN ISO 3262-6:2022
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 3262-6
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2022
EUROPÄISCHE NORM
ICS 87.060.10 Supersedes EN ISO 3262-6:1998
English Version
Extenders - Specifications and methods of test - Part 6:
Precipitated calcium carbonate (ISO 3262-6:2022)
Matières de charge - Spécifications et méthodes d'essai Füllstoffe - Anforderungen und Prüfverfahren - Teil6:
- Partie 6: Carbonate de calcium précipité (ISO 3262- Gefälltes Calciumcarbonat (ISO 3262-6:2022)
6:2022)
This European Standard was approved by CEN on 28 November 2022.

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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3262-6:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 3262-6:2022) 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 June 2023, and conflicting national standards shall be
withdrawn at the latest by June 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 3262-6:1998.
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 3262-6:2022 has been approved by CEN as EN ISO 3262-6:2022 without any
modification.
INTERNATIONAL ISO
STANDARD 3262-6
Second edition
2022-11
Extenders — Specifications and
methods of test —
Part 6:
Precipitated calcium carbonate
Matières de charge — Spécifications et méthodes d’essai —
Partie 6: Carbonate de calcium précipité
Reference number
ISO 3262-6:2022(E)
ISO 3262-6:2022(E)
© ISO 2022
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 3262-6:2022(E)
Contents  Page
Foreword .iv
1  Scope . 1
2  Normative references . 1
3  Terms and definitions . 1
4  Requirements . 2
5  Sampling . 2
6  Determination of matter insoluble in hydrochloric acid . 2
6.1 General . 2
6.2 Oven method . 3
6.2.1 Reagents . 3
6.2.2 Apparatus . 3
6.2.3 Procedure . 3
6.2.4 Expression of results . 3
6.3 Furnace Method . 3
6.3.1 Reagents . 3
6.3.2 Apparatus . 4
6.3.3 Procedure . 4
6.3.4 Expression of results . 4
7  Test report . 4
iii
ISO 3262-6:2022(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.
...