oSIST prEN 12878:2018

SLOVENSKI STANDARD
oSIST prEN 12878:2018
01-junij-2018
Pigmenti za obarvanje gradbenih materialov na osnovi cementa in/ali apna -
Specifikacije in metode preskušanja
Pigments for the colouring of building materials based on cement and/or lime -
Specifications and methods of test
Pigmente zum Einfärben von zement- und/oder kalkgebundenen Baustoffen -
Anforderungen und Prüfverfahren
Pigments de coloration des matériaux de construction à base de ciment et/ou de chaux -
Spécifications et méthodes d'essai
Ta slovenski standard je istoveten z: prEN 12878
ICS:
87.060.10 Pigmenti in polnila Pigments and extenders
91.100.10 Cement. Mavec. Apno. Malta Cement. Gypsum. Lime.
Mortar
oSIST prEN 12878:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 12878:2018


DRAFT
EUROPEAN STANDARD
prEN 12878
NORME EUROPÉENNE

EUROPÄISCHE NORM

May 2018
ICS 91.100.10; 87.060.10 Will supersede EN 12878:2014
English Version

Pigments for the colouring of building materials based on
cement and/or lime - Specifications and methods of test
Pigments de coloration des matériaux de construction Pigmente zum Einfärben von zement- und/oder
à base de ciment et/ou de chaux - Spécifications et kalkgebundenen Baustoffen - Anforderungen und
méthodes d'essai Prüfverfahren
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 298.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


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. prEN 12878:2018 E
worldwide for CEN national Members.

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Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Characteristics . 7
4.1 Effects on concrete properties . 7
4.1.1 General . 7
4.1.2 Setting time . 8
4.1.3 Compressive strength . 8
4.2 Composition . 8
4.2.1 General . 8
4.2.2 Constitution of pigments . 8
4.2.3 Water soluble substances . 8
4.2.4 Soluble chloride . 8
4.2.5 Total chloride . 9
4.3 Loss on ignition . 9
4.4 Emission of radioactivity . 9
4.5 Release of dangerous substances . 9
4.6 Relative colour strength . 9
4.7 Residue on sieve . 9
4.8 pH value . 9
4.9 Alkali stability . 10
4.10 Resistance to weathering . 10
4.11 Thermal stability . 10
4.12 Colour comparison against standard pigment . 10
5 Test methods . 10
5.1 Effect on concrete properties. 10
5.1.1 Setting time . 10
5.1.2 Compressive strength . 10
5.2 Composition . 10
5.2.1 General . 10
5.2.2 Composition of the pigments . 10
5.2.3 Water soluble substances . 11
5.2.4 Soluble chloride . 11
5.2.5 Total chloride . 11
5.3 Loss on ignition . 11
5.4 Emission of radioactivity . 12
5.5 Whendeclared, a relevant test method should be used. Release of dangerous
substances . 12
5.6 When declared, a relevant test method should be used. Relative colour strength . 12
5.6.1 General remarks . 12
5.6.2 Relative colour strength in barytes or white Portland cement CEM I (dry mix) . 12
5.6.3 Determination of relative colour strength in barytes (wet mix) . 13
5.6.4 Determination of relative colour strength in white Portland cement mortar (wet
mix) . 14
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5.7 Residue on sieve . 15
5.8 pH-value . 15
5.9 Alkali stability . 15
5.9.1 General remarks . 15
5.9.2 Preparation of test pieces . 15
5.9.3 Test procedure . 15
5.10 Resistance to weathering . 16
5.11 Thermal stability . 16
5.12 Colour comparison against the standard pigment . 16
5.12.1 General . 16
5.12.2 Equipment and test materials . 17
5.12.3 Mortar formulation . 17
5.12.4 Test procedure . 17
5.12.5 Evaluation of test . 18
6 Assessment and verification of constancy of performance – AVCP . 18
6.1 General . 18
6.2 Type testing . 18
6.2.1 General . 18
6.2.2 Test samples, testing and compliance criteria . 19
6.2.3 Test reports . 21
6.2.4 Shared other party results . 21
6.2.5 Cascading determination of the product type results . 21
6.3 Factory production control (FPC) . 22
6.3.1 General . 22
6.3.2 Requirements . 23
6.3.3 Product specific requirements . 25
6.3.4 Initial inspection of factory and of FPC . 26
6.3.5 Continuous surveillance of FPC . 26
6.3.6 Procedure for modifications . 26
Annex A (informative) Further information regarding test methods . 27
A.1 Reference to 5.6.2 “Relative colour strength in barites white Portland cement CEM
(dry mix)” and 5.6.3 “Determination of relative colour strength in barytes (wet mix)” . 27
A.2 Reference to 5.9 “Alkali stability” . 27
A.3 Reference to 5.10 “Resistance to weathering” . 27
Annex ZA (informative) Relationship of this European Standard with Regulation (EU)
No.305/2011 . 28
ZA.1 Scope and relevant characteristics . 28
ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) . 29
ZA.3 Assignment of AVCP tasks . 29
Bibliography . 31
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European foreword
This document (prEN 12878:2018) has been prepared by Technical Committee CEN/TC 298 “Pigments
and extenders”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 12878:2014.
This document has been prepared under a standardization request given to CEN by the European
Commission and the European Free Trade Association.
For relationship with EU Directive, see informative Annex ZA, which is an integral part of this
document.
The main changes with respect to the previous edition are listed below:
a) revision according to TFN548rev1, TFN 577 and TFN687rev1;
b) correction of the “chlorine” to “chloride”;
c) general editorial revision.
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1 Scope
This document specifies the characteristics and the methods of test for pigments for use in the
colouring of building materials based on cement and cement/lime combinations.
Pigments covered by this document may also be used in pure lime mortar. For this application, see
EN 459-1 and EN 459-2.
Pigments for this purpose may be single pigments, blends of pigments, or blends of pigments and
extenders, in powder or granular form, or aqueous preparations.
Pigments typically belong to one of the following classes of compounds:
— synthetic or natural oxides and hydroxides of iron;
— oxides of chromium, titanium and manganese;
— complex inorganic pigments, for example combinations of the above mentioned metal oxides and
hydroxides with cobalt, aluminium, nickel and antimony oxides and hydroxides;
— ultramarine pigments;
— phthalocyanine blue and green;
— elemental carbon (shall be regarded as an inorganic pigment);
— blends of the above materials (which may also include extenders).
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 196-1:2016, Methods of testing cement — Part 1: Determination of strength
EN 196-3, Methods of testing cement — Part 3: Determination of setting times and soundness
EN 197-1, Cement — Part 1: Composition, specifications and conformity criteria for common cements
EN 934-1:2008, Admixtures for concrete, mortar and grout — Part 1: Common requirements
EN ISO 591-1, Titanium dioxide pigments for paints — Part 1: Specifications and methods of test (ISO 591-
1)
EN ISO 787-3, General methods of test for pigments and extenders — Part 3: Determination of matter
soluble in water — Hot extraction method (ISO 787-3)
EN ISO 787-7, General methods of test for pigments and extenders — Part 7: Determination of residue on
sieve — Water method — Manual procedure (ISO 787-7)
EN ISO 787-9, General methods of test for pigments and extenders — Part 9: Determination of pH value of
aqueous suspension (ISO 787-9)
EN ISO 787-13, General methods of test for pigments and extenders — Part 13: Determination of water-
soluble sulfates, chlorides and nitrates (ISO 787-13)
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EN ISO 1248, Iron oxide pigments — Specifications and methods of test (ISO 1248:2006 including
Technical Corrigendum 1:2007)
EN ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling (ISO 15528)
EN ISO 18451-1, Pigments, dyestuffs and extenders — Terminology — Part 1: General terms (ISO 18451-
1)
EN ISO 18451-2, Pigments, dyestuffs and extenders — Terminology — Part 2: Classification of colouring
materials according to colouristic and chemical aspects (ISO 18451-2)
ISO 788, Ultramarine pigments for paints
ISO 3310-1, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth
ISO 4621, Chrome oxide green pigments — Specifications and methods of test
ISO 9277, Determination of the specific surface area of solids by gas adsorption — BET method
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 18451-1, EN ISO 18451-2
and the following apply.
3.1
pigment
colourant consisting of particles, insoluble in the application medium (e.g. coating material or plastic)
Note 1 to entry: Pigments can be further described on the basis of their chemical composition, their optical or
technical properties, e.g. inorganic pigment, organic pigment, coloured pigment, white pigment, effect pigment,
corrosion-inhibiting pigment, magnetic pigment.
Note 2 to entry: Pigments for ceramics, glass and vitreous enamels are called stains.
Note 3 to entry: Whether a given substance is to be considered as pigment or extender depends on its
application.
[SOURCE: EN ISO 18451-1:2017, definition 2.95]
3.2
single pigment
pigment that is of singular (chemical) composition
Note 1 to entry: Single pigments contain no substances other than those originating from the pigment
manufacturing process.
Note 2 to entry: Surface treatment of the primary pigment particles is considered as a part of the pigment
manufacturing process.
3.3
pigment blend
blend of at least two single pigments, or at least one single pigment and an extender
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3.4
aqueous pigment preparation
preparation in which a pigment (single pigment or pigment blend) is dispersed in water, with or
without a dispersion or other agent
EXAMPLES of agents are:
— dispersants;
— binding agents (resins);
— solvents;
— wetting agents;
— or combinations thereof.
3.5
pigment in granular form
preparation in which a pigment (single pigment or pigment blend) is converted into granules, by the
use of the binding agent which retains the integrity of the granule
3.6
reference sample; standard pigment
sample of a single pigment or a blend (powder, or preparation) retained by the interested parties for
comparison for the evaluation of the product properties (e.g. colour)
3.7
extender
substance in granular or powder form, insoluble in the medium (e.g. coating material) and used to
modify or influence certain physical properties
Note 1 to entry: The German terms “Extender”, “Extenderpigment”, “Pigmentextender” or “Verschnittmittel”
should be avoided.
Note 2 to entry: Whether a given substance is to be considered as pigment or extender depends on its application.
[SOURCE: EN ISO 18451-1:2017, definition 2.34]
4 Characteristics
4.1 Effects on concrete properties
4.1.1 General
Pigments for steel reinforced concrete shall additionally meet all Category B characteristics given in
4.1.3, 4.2.3 to 4.2.5.
The inorganic pigment dosage shall be 5,0 % solids, carbon black and organic pigment dosage of 2,0 %
solids, by mass, based on the cement amount for testing according 5.1.
If a higher dosage of pigment is recommended the tests shall be carried out with that dosage.
The dosage in percent by mass shall be specified by the manufacturer.
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4.1.2 Setting time
4.1.2.1 Initial setting time
The initial setting time of cement with the single pigment or a blend (both as powder, granulate or
preparation), determined in accordance with 5.1.1, shall be not less than 60 min.
The maximum difference between the initial setting time of mixes with and without the single pigment
or a blend (both as powder, granulate or preparation) shall be not greater than 60 min.
4.1.2.2 Final setting time
The final setting time of cement with the single pigment or a blend (both as powder, granulate or
preparation), determined in accordance with 5.1.1, shall not be longer than 720 min. The maximum
difference between the final setting time of mixes with and without the single pigment or a blend (both
as powder, granulate or preparation) shall be not greater than 120 min.
4.1.3 Compressive strength
The 28 day compressive strength of mixes with the single pigment or a blend (both as powder,
granulate or preparation), determined in accordance with 5.1.2, shall not be reduced in comparison
with the mix without pigment more than:
— Category A: the manufacturer’s declared value;
— Category B: 8 %.
4.2 Composition
4.2.1 General
The stability of a pigment with respect to colour shall be linked to the intended end use conditions.
The solids content, as a percentage (%) of aqueous preparations, shall be declared by the manufacturer.
4.2.2 Constitution of pigments
The main constituents of the pigments are determined in accordance with 5.2.1 and 5.2.2.
4.2.3 Water soluble substances
The content of water soluble substances, determined in accordance with 5.2.3, shall not be greater than:
— Category A: the manufacturer's declared value;
— Category B: 0,5 % by mass for single pigments and pigment blends. Where additives such as
dispersion agents, binding agents and/or grinding aids are used for powder and non-powder
preparations, their total water soluble content shall be equal to or less than 5,0 % (8,0 % for carbon
black) by mass, based on solids. The used additives shall conform to EN 934-1:2008, Annex A.1.
For pigment blends in powder form, evidence of compliance may be calculated from data recorded for
constituent single pigments.
4.2.4 Soluble chloride
The soluble chloride content of a single pigment or a blend (powder, granulate or preparation),
determined in accordance with 5.2.4, shall not be greater than:
— Category A: the manufacturer's declared value;
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— Category B: 0,10 % by mass.
For pigment blends in powder form, evidence of compliance may be calculated from data recorded for
constituent single pigments.
Where pigment blends, pigment/extender mixtures, or granulates or aqueous preparations thereof, are
used in excess of 5 % based on cement, the total content of halides which are admitted into the concrete
should not exceed 0,005 % based on the cement.
4.2.5 Total chloride
The total chloride content of a single pigment or a blend (powder, granulate or preparation),
determined in accordance with 5.2.5, shall not be greater than:
— Category A: the manufacturer's declared value;
— Category B: 0,10 % by mass.
For pigment blends in powder form, evidence of compliance may be calculated from data recorded for
constituent single pigments.
4.3 Loss on ignition
The loss on ignition of a single pigment or a blend (powder, granulate or preparation) shall be
determined in accordance with 5.3.
4.4 Emission of radioactivity
When declared, the emission of radioactivity by a single pigment or a blend (powder, granulate or
preparation) shall be assessed.
4.5 Release of dangerous substances
The release of dangerous substances by a single pigment or a blend (powder, granulate or preparation)
shall be declared.
National regulations on dangerous substances, other than those already covered in other clauses of this
standard, may require verification and declaration on release, and sometimes content, when
construction products covered by this standard are placed on those markets.
NOTE An informative database covering European and national provisions on dangerous substances is
available at the Construction website on EUROPA accessed through:
https://ec.europa.eu/growth/tools-databases/cp-ds_en
4.6 Relative colour strength
The relative colour strength in comparison with the standard pigment, determined in accordance with
5.6, shall be 100 % ± 5 %.
4.7 Residue on sieve
The residue on the sieve of pigment in powder form shall bedetermined in accordance with 5.7.
4.8 pH value
The pH value, determined in accordance with 5.8, shall conform with the manufacturer's specified
value ± 2.
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4.9 Alkali stability
For alkali stability the pigment shall be tested in accordance with 5.9.
4.10 Resistance to weathering
The resistance of weathering of the pigment shall be assessed in accordance with 5.10.
4.11 Thermal stability
The termal stability of the pigment shall be tested in accordance with 5.11.
4.12 Colour comparison against standard pigment
*
The Δ E value, compared against the standard pigment, shall be tested in accordance with 5.12.
ab
NOTE Research into the repeatability and reproducibility of this test method has shown that samples
*
prepared using the same pigments at five separate laboratories produced results within a Δ E range of 0,5.
ab
5 Test methods
5.1 Effect on concrete properties
5.1.1 Setting time
The influence on the setting time of cement shall be tested using the test method described in EN 196-3,
using a paste made with Portland cement CEM I 42,5 R conforming to EN 197-1, with and without the
addition of pigment.
5.1.2 Compressive strength
The influence of a pigment on t
...