SIST EN ISO 4619:2012

SLOVENSKI STANDARD
SIST EN ISO 4619:2012
01-januar-2012
Sušilniki za barve in lake (ISO 4619:1998)
Driers for paints and varnishes (ISO 4619:1998)
Trockenstoffe für Beschichtungsstoffe (ISO 4619:1998)
Siccatifs pour peintures et vernis (ISO 4619:1998)
Ta slovenski standard je istoveten z: EN ISO 4619:2010
ICS:
87.100 Oprema za nanašanje Paint coating equipment
premazov
SIST EN ISO 4619:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 4619:2012

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SIST EN ISO 4619:2012


EUROPEAN STANDARD
EN ISO 4619

NORME EUROPÉENNE

EUROPÄISCHE NORM
November 2010
ICS 87.060.99
English Version
Driers for paints and varnishes (ISO 4619:1998)
Siccatifs pour peintures et vernis (ISO 4619:1998) Trockenstoffe für Beschichtungsstoffe (ISO 4619:1998)
This European Standard was approved by CEN on 16 October 2010.

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 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 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4619:2010: E
worldwide for CEN national Members.

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SIST EN ISO 4619:2012
EN ISO 4619:2010 (E)
Contents Page
Foreword .3

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SIST EN ISO 4619:2012
EN ISO 4619:2010 (E)
Foreword
The text of ISO 4619:1998 has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” of
the International Organization for Standardization (ISO) and has been taken over as EN ISO 4619:2010 by
Technical Committee CEN/TC 139 “Paints and varnishes” 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 May 2011, and conflicting national standards shall be withdrawn at the
latest by May 2011.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 4619:1998 has been approved by CEN as a EN ISO 4619:2010 without any modification.

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SIST EN ISO 4619:2012

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SIST EN ISO 4619:2012
INTERNATIONAL ISO
STANDARD 4619
Second edition
1998-03-15
Driers for paints and varnishes
Siccatifs pour peintures et vernis
A
Reference number
ISO 4619:1998(E)

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SIST EN ISO 4619:2012
ISO 4619:1998(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.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard ISO 4619 was prepared by Technical Committee
ISO/TC 35, Paints and varnishes.
This second edition cancels and replaces the first edition (ISO 4619:1980),
of which it constitutes an editorial revision.
©  ISO 1998
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet central@iso.ch
X.400 c=ch; a=400net; p=iso; o=isocs; s=central
Printed in Switzerland
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SIST EN ISO 4619:2012
©
INTERNATIONAL STANDARD  ISO ISO 4619:1998(E)
Driers for paints and varnishes
1  Scope
This International Standard specifies the requirements and the corresponding test methods for driers for paints,
varnishes and related products. The requirements relate to driers in the solid or liquid form.
CAUTION — The procedures described in this International Standard are intended to be carried out by
qualified chemist or by other suitably trained and/or supervised personnel. The substances and procedures
used in this method may be injurious to health if adequate precautions are not taken. This International
Standard refers only to its technical suitability and does not absolve the user from statutory obligations
relating to health and safety.
Attention is particularly drawn to the health hazards of heavy metals which may be a constituent of driers
(e.g. cobalt, lead, cerium, zirconium, vanadium; see clauses 3, 4 and 8).
2  Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this
International Standard. At the time of publication, the editions indicated were valid. All standards are subject to
revision, and parties to agreements based on this International Standard are encouraged to investigate the
possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain
registers of currently valid International Standards.
ISO 150:1980, Raw, refined and boiled linseed oil for paints and varnishes — Specifications and methods of test.
ISO 842:1984, Raw materials for paints and varnishes — Sampling.
ISO 1523:1983, Paints and varnishes — Determination of flashpoint — Closed cup method.
ISO 2431:1993, Paints and varnishes — Determination of flow time by use of flow cups.
ISO 2592:1973, Petroleum products — Determination of flash and fire points — Cleveland open cup method.
ISO 2811-1:1997, Paints and varnishes — Determination of density — Part 1: Pyknometer method.
ISO 3219:1993, Plastics — Polymers/resins in the liquid state or as emulsions or dispersions — Determination of
viscosity using a rotational viscometer with defined shear rate.
ISO 3251:1993, Paints and varnishes — Determination of non-volatile matter of paints, varnishes and binders for
paints and varnishes.
ISO 3696:1987, Water for analytical laboratory use — Specifications and test methods.
ISO 4793:1980,
Laboratory sintered (fritted) filters — Porosity grading, classification and designation.
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ISO 4619:1998(E)
3  Definition
For the purposes of this International Standard, the following definition applies.
3.1  drier: A compound, usually a metallic soap, that is added to products drying by oxidation in order to accelerate
this process.
4  Descriptions
4.1  Solid driers
Solid driers are materials which may be manufactured in a hard, soft (highly viscous) or powder form.
4.2  Liquid driers
Liquid driers are materials which are supplied as solutions in organic solvents, usually white spirit.
NOTE —  Emulsifiable driers are also available, but no requirements for this type are given in this International Standard.
All these types of drier, when dissolved in solvents (normally hydrocarbons), impart specific drying properties
depending on the metal used.
4.3  Metals used
The following metals are used: cobalt, manganese, lead, zinc, calcium, cerium (or other rare earths), iron,
zirconium, vanadium, barium, aluminium, strontium, etc.
NOTE —  In this International Standard, methods for determination of metal content are given only for those metals which are
in common use.
4.4  Acids used
The following acids are used: fatty acids of linseed oils, tall-oil fatty acids, resinic acids, naphthenic acids,
2-ethylhexanoic acid, fatty iso-acids with 9 carbon atoms, other fatty acids with 9 to 11 carbon atoms, etc.
5  Requirements and test methods
5.1  Driers for paints shall comply with the requirement given in table 1.
5.2  Driers named according to the commercial name of the main acid used shall contain at least 90 % of this acid,
except for driers based on naphthenic acids, which shall contain at least 70 % of these acids, expressed as a
percentage of the total mass of acid present.
NOTE —  If desired, the type and content of the acids may be determined by gas-chromatographic (GC) analysis, except in
the case of naphthenic acids.
6  Sampling
Take a representative sample of the drier to be tested, as described in ISO 842.
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Table 1 — Requirements and test methods
Characteristic Requirement Test method
Solid driers Liquid driers
Appearance Clear and uniform; no Subclause 7.1 Subclause 8.1
suspended matter or
sediment
Consistency, if required To be agreed between —
the interested parties
Colour As agreed between the Subclause 7.2 Subclause 8.2
interested parties
Solubility (miscibility) in solvent, raw linseed oil No separation or Subclause 7.3 Subclause 8.3
and other drying media deposit
Stability of solution Clear solution; no Subclause 7.4 Subclause 8.4
clouding gelation or
sedimentation
of liquid driers [% (m/m)] max. 0,1 Subclause 7.5 Subclause 7.5
Suspended solid
matter
of solid driers
As agreed between the
interested parties
Viscosity, only for liquid driers — Subclause 8.5
Volatile matter at 105 °C Subclause 7.6 Subclause 7.6
Flashpoint ISO 2592 ISO 1523
Density To be agreed between ISO 2811-1
the interested parties
Acidity or basicity Subclause 7.7 Subclause 7.7
Drying characteristics To be agreed between the interested parties
1)
up to 10 % (m/m) – 0,2 % Clause 9 or 10
1)
above 10 % (m/m) – 0,3 %
to 20 % (m/m)
Metal content
1)
(range)
above 20 % (m/m) – 0,4 %
to 30 % (m/m)
1)
above 30 % (m/m) – 0,5 %
1)  Tolerance (absolute value) on the metal content declared or agreed.
7  Methods of test for solid driers
During the analysis, use only reagents of recognized analytical grade and only water of at least grade 3 purity in
accordance with ISO 3696.
7.1  Appearance and consistency
Examine the sample visually for uniformity. If the consistency is specified, a method for its determination shall be
agreed between the interested parties
7.2  Colour
Dissolve 1 part by mass of the drier in 1 part by mass of white spirit or other agreed solvent and compare the colour
against an agreed sample or colour standard.
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7.3  Solubility (miscibility) in solvents, raw linseed oil or other drying media
Slowly heat, raising the temperature at a rate of 1 °C/min, 5 g of the drier and 20 g of an agreed solvent (or drying
medium) under reflux on a sand bath, with stirring, until a homogeneous solution is obtained.
Allow to cool to room temperature and examine the solution for clarity, clouding and any separation or deposit.
7.4  Stability of solution
Allow three portions of the solution obtained by the method specified in 7.3 to stand for 7 days in stoppered bottles,
one at each of the following temperatures:
a) 0 °C;
b) ambient temperature;
c) 50 °C.
After 1 day and again after 7 days, examine the solutions for clarity, clouding sedimentation or gelation.
The bottle used for the test at 50 °C shall be able to withstand the pressure generated.
7.5  Suspended solid matter
Weigh, to the nearest 0,1 g, 5 g of solid drier (or 10 g of liquid drier) into a glass flask and dissolve in (or dilute with)
100 g of white spirit or an agreed solvent. Stopper the flask allow to stand at ambient temperature for 3 days, then
filter off the sediment or suspended matter using a glass filter crucible of porosity P 16 (see ISO 4793). Wash the
residue on the filter with the solvent and dry it at 105 °C for 3 h. Cool to ambient temperature and weigh to the
nearest 1 mg.
Calculate the suspended solid matter, as a percentage by mass, using the formula
m
1
× 100
m
0
where
m is the mass, in grams, of the test portion;
0
m is the mass, in grams, of the residue.
1
7.6  Volatile matter
Proceed according to ISO 3251, taking a flat-bottomed glass of aluminium dish and a test portion of (1 – 0,02) g.
Place the dish with the test portion in the air oven, maintained at (105 – 2) °C. Leave it in the oven at this
temperature for 3 h.
7.7  Acidity or basicity
7.7.1  Principle
A solution of the drier in toluene/propan-2-ol is passed through a strong acid cation exchanger and the total acid in
the eluate is determined. From the total acid determined, the acid combined with the metal is subtracted.
If a negative value for the acidity is obtained, the drier tested is a basic drier.
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The method is suitable for driers containing barium, calcium, cobalt, lead or zinc as metals, but is not applicable to
driers containing cerium, iron, manganese or zirconium as metals.
In such cases, the method shall be agreed between the interested parties.
7.7.2  Reagents
7.7.2.1  Cation exchanger: a strong-acid, ring-sulfonated polystyrene resin (for example, Merck 1, Dowex 50,
1)
Amberlite IR 120) .
7.7.2.2  Propan-2-ol.
7.7.2.3  Toluene.
7.7.2.4  Hydrochloric acid, approximately 5 % (m/m) solution.
7.7.2.5  Potassium hydroxide, approximately 0,2 mol/l standard volumetric solution in 96 % (V/V) ethanol.
7.7.2.6  Phenolphthalein, 1 % (m/m) solution in 96 % (V/V) ethanol.
7.7.3  Apparatus
Ordinary laboratory apparatus and glassware, together with the following:
7.7.3.1  Suitable ion-exchange column, as shown in figure 1, for instance.
7.7.4  Preparation of the ion-exchange column
Fill the ion-exchange column (7.7.3) with a quantity of the swollen ion-exchange resin (7.7.2.1) so that the height of
resin in the column is about 170 mm. Pour 250 ml of the hydrochloric acid solution (7.7.2.4) gradually into the
exchange column in order to change the resin into the hydrogen form. Drain off slowly, at about 1 or 2 drops/s
(= 5 ml/min). When the acid has drained off completely, wash the resin successively with several 350 ml portions of
water. The final washings shall not be acid to litmus paper. Then displace the water in the exchange column
by 50 ml of the propan-2-ol (7.7.2.2) and finally displace the propan-2-ol with 50 ml of a mixture (1 + 1) of the
propan-2-ol and the toluene (7.7.2.3).
Do not use this column for more than about 50 milliequivalents of total metal.
7.7.5  Procedure
Weigh, to the nearest 1 mg, about 8 g of the drier to be tested into a 100 ml one-mark volumetric flask and dissolve
it in 50 ml of the toluene (7.7.2.3). Dilute to the mark with the propan-2-ol (7.7.2.2) and mix well. Pipette 25 ml of the
solution into the ion-exchange column (7.7.4) and adjust the rate of flow to 5 ml/min. Collect the eluate in a 500 ml
conical flask. When all the liquid has soaked through the resin, wash the exchange column with 150 ml of a mixture
(1 + 1) of the propan-2-ol and the toluene, and collect the washings in the 500 ml conical flask, allowing them to
drain of completely. Add a few drops of the phenolphthalein solution (7.7.2.6) to the eluate and titrate with the
potassium hydroxide solution (7.7.2.5) to the end-point.
___________
1)  These are examples of suitable products available commercially. This information is given for the convenience of users of
this International Standard and does not constitute an endorsement by ISO of these products.
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Dimensions in millimetres
Key
1 Layer of glass wool
2 Ion-exchange resin
3 Sintered-glass disc
4 Capillary tubing ˘ 2
Figure 1 — Example of a suitable ion-exchange column (see 7.7.3.1)
7.7.6  Expression of results
The acidity or basicity, expressed in milligrams of potassium hydroxide (KOH) per gram, is given by the formula
41××VT0××cn
 
56,1 − 
 
m A
where
V is the volume, in millilitres, of the potassium hydroxide solution (7.7.2.5) required for the titration;
T is the exact concentration of the potassium hydroxide solution (7.7.2.5), in moles of KOH per litre;
c is the metal content, as a percentage by mass, of the drier, as determined in clause 9;
n is the valency of the metal in the drier;
m is the mass, in grams, of the test portion;
A is the relative atomic mass of the metal in the drier.
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cn×
For mixed driers the factor shall be calculated, taking into account the composition of the mixed drier.
A
8  Methods of test for liquid driers
8.1  Appearance
Examine the sample visually for uniformity, clarity, suspended matter or sediment.
8.2  Colour
Compare the colour of the liquid drier against that of an agreed sample or colour standard.
8.3  Solubility (miscibility) in solvents, raw linseed oil or other drying media
Prepare a mixture as follows:
Raw linseed oil, complying with ISO 150 (see the note): 16 parts by volume
Mineral solvents. e.g. white spirit with an aromatic content
of approximately 25 % (V/V) (see below): 4 parts by volume
The drier under test (at standard strength) (see below): 1 part by volume
NOTE —  In the case of driers containing calcium, barium or rare earths, it is recommended that an air-drying alkyd resin
[non-volatile content at least 60 % (m/m)] be used instead of linseed oil.
Allow the mixture to stand at room temperature for 6 h and then examine it for clarity, noting any clouding,
separation or deposit.
The exact aromatic content of the solvent shall be agreed between the interested parties.
For the purpose of this test, the standard strength of the drier is defined, in % (m/m), as
6 Co 6 Ce (or other rare earths)
6Mn 6 Fe
24 Pb 6 Zr
8 Zn 12,5 Ba
4Ca
Dilute driers of higher concentration than those above with mineral solvent until the standard strength is obtained.
8.4  Stability of solution
Prepare three mixtures of 10 g of liquid driers and 10 g of mineral solvent (the exact aromatic content of which shall
be agreed between the interested parties), and allow to stand for 7 days in stoppered bottles, one at each of the
following temperatures:
a) 0 °C;
b) ambient temperature;
c) 50 °C.
After this period, examine the solutions for clarity, noting any clouding, sedimentation or gelation.
The bottle used for the test at 50 °C shall be able to withstand the pressure generated.
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8.5  Viscosity
A suitable method shall be agreed between the interested parties, for example by the procedure specified in
ISO 2431 (flow cup method), ISO 3219 (rotational viscometer working at known shear rate) or falling-ball methods.
9  Methods for determination of metal content of driers containing only one metal
NOTE —  The methods are not selective for only one metal. In case of doubt, a qualitative test for the presence of other
metals may be carried out. Other methods, e.g. atomic absorption spectrometry (AAS), may be used by agreement between
the interested parties.
During the analysis, use only reagents of recognized analytical grade and only water of at least grade 3 purity as
defined in ISO 3696. All indicator solutions should preferably be freshly prepared but shall in no case be older than
2 weeks.
9.1  Cobalt (EDTA titrimetric method)
9.1.1  Reagents
9.1.1.1  Hydroxylamm
...