EN ISO 18473-1:2018
(Main)Functional pigments and extenders for special applications - Part 1: Nanoscale calcium carbonate for sealant application (ISO 18473-1:2015)
Functional pigments and extenders for special applications - Part 1: Nanoscale calcium carbonate for sealant application (ISO 18473-1:2015)
ISO 18473-1:2015 specifies requirements and corresponding methods of test for surface treated nanoscale calcium carbonate in powder form for sealant application.
Funktionelle Pigmente und Füllstoffe für besondere Anwendungen - Teil 1: Calciumcarbonat im Nanomaßstab für Dichtmassen (ISO 18473-1:2015)
Pigments et matières de charges fonctionnels pour applications spéciales - Partie 1: Carbonate de calcium nanométrique pour les enduits (ISO 18473-1:2015)
La présente partie de l'ISO 18473 spécifie les exigences et les méthodes d'essai correspondantes pour le carbonate de calcium nanométrique en poudre traité en surface et utilisé pour les enduits.
Funkcionalni pigmenti in polnila za posebno uporabo - 1. del: Nano kalcijev karbonat za tesnjenje (ISO 18473-1:2015)
Standard ISO 18473-1:2015 določa zahteve in ustrezne metode preskušanja za površinsko obdelan nano kalcijev karbonat v prahu za tesnjenje.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2018
Funkcionalni pigmenti in polnila za posebno uporabo - 1. del: Nano kalcijev
karbonat za tesnjenje (ISO 18473-1:2015)
Functional pigments and extenders for special applications - Part 1: Nanoscale calcium
carbonate for sealant application (ISO 18473-1:2015)
Funktionelle Pigmente und Füllstoffe für besondere Anwendungen - Teil 1:
Calciumcarbonat im Nanomaßstab für Dichtmassen (ISO 18473-1:2015)
Pigments et matières de charges fonctionnels pour applications spéciales - Partie 1:
Carbonate de calcium nanométrique pour les enduits (ISO 18473-1:2015)
Ta slovenski standard je istoveten z: EN ISO 18473-1:2018
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 18473-1
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2018
EUROPÄISCHE NORM
ICS 87.060.10
English Version
Functional pigments and extenders for special applications
- Part 1: Nanoscale calcium carbonate for sealant
application (ISO 18473-1:2015)
Pigments et matières de charges fonctionnels pour Funktionelle Pigmente und Füllstoffe für besondere
applications spéciales - Partie 1: Carbonate de calcium Anwendungen - Teil 1: Calciumcarbonat im
nanométrique pour les enduits (ISO 18473-1:2015) Nanomaßstab für Dichtmassen (ISO 18473-1:2015)
This European Standard was approved by CEN on 6 May 2018.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18473-1:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
The text of ISO 18473-1:2015 has been prepared by Technical Committee ISO/TC 256 "Pigments,
dyestuffs and extenders” of the International Organization for Standardization (ISO) and has been taken
over as EN ISO 18473-1:2018 by 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 April 2019, and conflicting national standards shall be
withdrawn at the latest by April 2019.
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.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 18473-1:2015 has been approved by CEN as EN ISO 18473-1:2018 without any
modification.
INTERNATIONAL ISO
STANDARD 18473-1
First edition
2015-08-15
Functional pigments and extenders for
special applications —
Part 1:
Nanoscale calcium carbonate for
sealant application
Pigments et matières de charges fonctionnels pour applications
spéciales —
Partie 1: Carbonate de calcium nanométrique pour les enduits
Reference number
ISO 18473-1:2015(E)
©
ISO 2015
ISO 18473-1:2015(E)
© ISO 2015, Published in Switzerland
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ii © ISO 2015 – All rights reserved
ISO 18473-1:2015(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements and test methods . 2
5 Sampling . 3
6 Determination of whiteness . 3
6.1 Apparatus . 3
6.2 Procedure . 3
6.2.1 Sample preparation . 3
6.2.2 Calibration of the apparatus . 4
6.2.3 Determination . 4
6.2.4 Calculation of whiteness . 4
7 Marking and label . 4
8 Test report . 4
Bibliography . 5
ISO 18473-1:2015(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
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For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 256, Pigments, dyestuffs and extenders.
ISO 18473 consists of the following parts, under the general title Functional pigments and extenders for
special applications:
— Part 1: Nanoscale calcium carbonate for sealant application
— Part 2: Nanoscale titanium dioxide for sunscreen application
iv © ISO 2015 – All rights reserved
ISO 18473-1:2015(E)
Introduction
Sealants are widely used to prevent the penetration of air, gas, or liquid in many industries including
construction, automobile, and electronics. Extenders are essential part of sealant formulation to reduce
cost and improve their rheological and mechanical properties. Content of extenders vary significantly
and can be as high as 50 % (mass fraction). The most common extender in sealants is calcium carbonate
(CaCO ) because it is readily available and comes in various sizes which act as a rheological modifier,
a reinforcing agent, and opacifier. Commercial calcium carbonate can be divided into ground calcium
carbonate (GCC) and precipitated calcium carbonate (PCC), possesses three crystal structures including
calcite, aragonite, and vaterite, and exists in various morphologies such as cubic, spherical, spindle,
fibrous, needle-like, etc. Calcium carbonates with calcite crystal structure and cubic or spherical
morphology are most widely used in sealant applications.
Nanoscale calcium carbonate (NCC) provides various sealants with improved performance and
additional functionalities including thixotropy, flame resistance and improved durability and
recyclability, and has become a major component in sealant formulation. Nanoscale calcium carbonate
in the powdered form is readily manufactured nowadays, mostly through precipitation route to control
the size and morphology. Surface treatment is crucial for utilizing NCC in sealants. Native CaCO is
hydrophilic. As a result, it tends to agglomerate in organic polymers and plasticizers. NCC, in particular,
has a greater propensity for agglomeration because of its small size and large specific surface area.
NCCs are surface treated to render them hydrophobic and improve their dispersibility in hydrophobic
systems. Surface treatment also improves polymer matrix compatibility, thus improving interfacial
adhesion between extender and polymer.
It has been found that the particle size, specific surface area, mass fraction, morphology, pH value,
magnesium content, oil absorption value, moisture content, and other characteristics of supplied
nanoscale calcium carbonate all have impact on the performance of the sealant incorporating these
nanoparticles. The need to specify the characteristics of NCC which relate to sealant performance
comes from the following facts. First, the agreements between customers and suppliers do not always
cover all material characteristics that have influences on performance and/or processability of sealants
or they have been in
...
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