SIST EN ISO 23168:2021
(Main)Paints and varnishes - Determination of water content - Gas-chromatographic method (ISO 23168:2019)
Paints and varnishes - Determination of water content - Gas-chromatographic method (ISO 23168:2019)
This document specifies a method for the determination of the water content of water-borne coating materials and their raw materials by using a gas chromatograph. The preferred working range of this test method is from a water mass fraction of 15 % to a water mass fraction of 90 % but the method can be applied outside of this range.
Beschichtungsstoffe - Bestimmung des Wassergehaltes - Gaschromatographisches Verfahren (ISO 23168:2019)
Dieses Dokument legt ein Verfahren zum Bestimmen des Wassergehaltes von wasserhaltigen Beschichtungs¬stoffen und deren Rohstoffen mittels eines Gaschromatographen fest. Der bevorzugte Arbeitsbereich dieses Prüfverfahrens liegt bei einem Wassergehalt von 15 % bis 90 % (Massenanteil), das Verfahren kann jedoch auch außerhalb dieses Bereiches angewendet werden.
Peintures et vernis - Détermination de la teneur en eau - Méthode par chromatographie en phase gazeuse (ISO 23168:2019)
Le présent document spécifie une méthode pour déterminer la teneur en eau des produits de peinture aqueux et de leurs matières premières au moyen d'un chromatographe en phase gazeuse. La plage de mesure recommandée pour la présente méthode s'étend d'une fraction massique en eau de 15 % à une fraction massique en eau de 90 %, mais la méthode peut être appliquée en dehors de cette plage.
Barve in laki - Določevanje vode - Metoda s plinsko kromatografijo (ISO 23168:2019)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 23168:2021
01-marec-2021
Barve in laki - Določevanje vode - Metoda s plinsko kromatografijo (ISO
23168:2019)
Paints and varnishes - Determination of water content - Gas-chromatographic method
(ISO 23168:2019)
Beschichtungsstoffe - Bestimmung des Wassergehaltes - Gaschromatographisches
Verfahren (ISO 23168:2019)
Peintures et vernis - Détermination de la teneur en eau - Méthode par chromatographie
en phase gazeuse (ISO 23168:2019)
Ta slovenski standard je istoveten z: EN ISO 23168:2020
ICS:
87.040 Barve in laki Paints and varnishes
SIST EN ISO 23168:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 23168:2021
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SIST EN ISO 23168:2021
EN ISO 23168
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2020
EUROPÄISCHE NORM
ICS 87.040
English Version
Paints and varnishes - Determination of water content -
Gas-chromatographic method (ISO 23168:2019)
Peintures et vernis - Détermination de la teneur en eau Beschichtungsstoffe - Bestimmung des Wassergehaltes
- Méthode par chromatographie en phase gazeuse (ISO - Gaschromatographisches Verfahren (ISO
23168:2019) 23168:2019)
This European Standard was approved by CEN on 30 November 2020.
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, 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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 23168:2020 E
worldwide for CEN national Members.
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SIST EN ISO 23168:2021
EN ISO 23168:2020 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 23168:2021
EN ISO 23168:2020 (E)
European foreword
The text of ISO 23168:2019 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 23168:2020 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 June 2021, and conflicting national standards shall be
withdrawn at the latest by June 2021.
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, 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, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 23168:2019 has been approved by CEN as EN ISO 23168:2020 without any modification.
3
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SIST EN ISO 23168:2021
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SIST EN ISO 23168:2021
INTERNATIONAL ISO
STANDARD 23168
First edition
2019-04
Paints and varnishes — Determination
of water content — Gas-
chromatographic method
Peintures et vernis — Détermination de la teneur en eau — Méthode
par chromatographie en phase gazeuse
Reference number
ISO 23168:2019(E)
©
ISO 2019
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SIST EN ISO 23168:2021
ISO 23168:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
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: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 23168:2021
ISO 23168:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
5.1 Gas chromatograph . 2
5.2 Sample injection system . 2
5.3 Oven . 2
5.4 Detector . 2
5.5 Capillary column. 2
5.6 Injection syringe . 2
5.7 Data processing . 2
5.8 Sample vials . 2
5.9 Gas filter . 2
5.10 Carrier gas . 3
5.11 Analytical balance. 3
5.12 Bottle-top dispenser . 3
6 Reagents and materials . 3
6.1 Internal standard (anhydrous) . 3
6.2 Dilution solvent . 3
6.3 Water . 3
6.4 Molecular sieve . 3
7 Sampling . 3
8 Procedure. 4
8.1 Gas-chromatographic conditions . 4
8.2 Water content of the dilution solvent . 4
8.3 Calibration . 4
8.4 Sample preparation . 4
8.5 Quantitative determination of water content . 5
9 Expression of results . 6
10 Precision . 6
10.1 General . 6
10.2 Repeatability limit, r . 6
10.3 Reproducibility limit, R . 6
11 Test report . 7
Annex A (informative) Example of gas-chromatographic conditions. 8
Annex B (informative) Information about precision . 9
Bibliography .11
© ISO 2019 – All rights reserved iii
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SIST EN ISO 23168:2021
ISO 23168:2019(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
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee
SC 9, General test methods for paints and varnishes.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2019 – All rights reserved
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SIST EN ISO 23168:2021
INTERNATIONAL STANDARD ISO 23168:2019(E)
Paints and varnishes — Determination of water content —
Gas-chromatographic method
1 Scope
This document specifies a method for the determination of the water content of water-borne coating
materials and their raw materials by using a gas chromatograph. The preferred working range of this
test method is from a water mass fraction of 15 % to a water mass fraction of 90 % but the method can
be applied outside of this range.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 760, Determination of water — Karl Fischer method (General method)
ISO 1513, Paints and varnishes — Examination and preparation of test samples
ISO 3696, Water for analytical laboratory use — Specification and test methods
ISO 4618, Paints and varnishes — Terms and definitions
ISO 15528, Paints, varnishes and raw materi
...
SLOVENSKI STANDARD
oSIST prEN ISO 23168:2020
01-september-2020
Barve in laki - Določevanje vode - Metoda s plinsko kromatografijo (ISO
23168:2019)
Paints and varnishes - Determination of water content - Gas-chromatographic method
(ISO 23168:2019)
Beschichtungsstoffe - Bestimmung des Wassergehaltes - Gaschromatographisches
Verfahren (ISO 23168:2019)
Peintures et vernis - Détermination de la teneur en eau - Méthode par chromatographie
en phase gazeuse (ISO 23168:2019)
Ta slovenski standard je istoveten z: prEN ISO 23168
ICS:
87.040 Barve in laki Paints and varnishes
oSIST prEN ISO 23168:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 23168:2020
---------------------- Page: 2 ----------------------
oSIST prEN ISO 23168:2020
INTERNATIONAL ISO
STANDARD 23168
First edition
2019-04
Paints and varnishes — Determination
of water content — Gas-
chromatographic method
Peintures et vernis — Détermination de la teneur en eau — Méthode
par chromatographie en phase gazeuse
Reference number
ISO 23168:2019(E)
©
ISO 2019
---------------------- Page: 3 ----------------------
oSIST prEN ISO 23168:2020
ISO 23168:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
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: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 23168:2020
ISO 23168:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
5.1 Gas chromatograph . 2
5.2 Sample injection system . 2
5.3 Oven . 2
5.4 Detector . 2
5.5 Capillary column. 2
5.6 Injection syringe . 2
5.7 Data processing . 2
5.8 Sample vials . 2
5.9 Gas filter . 2
5.10 Carrier gas . 3
5.11 Analytical balance. 3
5.12 Bottle-top dispenser . 3
6 Reagents and materials . 3
6.1 Internal standard (anhydrous) . 3
6.2 Dilution solvent . 3
6.3 Water . 3
6.4 Molecular sieve . 3
7 Sampling . 3
8 Procedure. 4
8.1 Gas-chromatographic conditions . 4
8.2 Water content of the dilution solvent . 4
8.3 Calibration . 4
8.4 Sample preparation . 4
8.5 Quantitative determination of water content . 5
9 Expression of results . 6
10 Precision . 6
10.1 General . 6
10.2 Repeatability limit, r . 6
10.3 Reproducibility limit, R . 6
11 Test report . 7
Annex A (informative) Example of gas-chromatographic conditions. 8
Annex B (informative) Information about precision . 9
Bibliography .11
© ISO 2019 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 23168:2020
ISO 23168:2019(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
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee
SC 9, General test methods for paints and varnishes.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2019 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 23168:2020
INTERNATIONAL STANDARD ISO 23168:2019(E)
Paints and varnishes — Determination of water content —
Gas-chromatographic method
1 Scope
This document specifies a method for the determination of the water content of water-borne coating
materials and their raw materials by using a gas chromatograph. The preferred working range of this
test method is from a water mass fraction of 15 % to a water mass fraction of 90 % but the method can
be applied outside of this range.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 760, Determination of water — Karl Fischer method (General method)
ISO 1513, Paints and varnishes — Examination and preparation of test samples
ISO 3696, Water for analytical laboratory use — Specification and test methods
ISO 4618, Paints and varnishes — Terms and definitions
ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 4618 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
3.1
ready for use
state of a product when it is mixed in accordance with the manufacturer’s instructions in the correct
proportions and thinned if required using the correct thinners so that it is ready for application by the
approved method
[SOURCE: ISO 11890-2:2013, 3.4]
4 Principle
A suitable amount of the sample is internally standardized, diluted with appropriate organic solvent,
and then injected into a gas chromatographic column that separates water from other components,
after which the water is detected by a thermoconductivity detector and quantified from the peak areas
using the internal standard.
© ISO 2019 – All rights reserved 1
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oSIST prEN ISO 23168:2020
ISO 23168:2019(E)
5 Apparatus
5.1 Gas chromatograph
The apparatus shall be set up and used in accordance with the manufacturer's instructions. All of the
instrumental parts coming into contact with the test sample shall be made of a material (e.g. glass)
which is resistant to the sample and will not change it chemically.
5.2 Sample injection system
The instrument shall have a variable-temperature injection block with a sample splitter. The injection
temperature shall be capable of being set to an accuracy of 1 °C. The split ratio shall be adjustable and
capable of being monitored. The sample splitter insert shall contain silanized glass wool to retain
nonvolatile constituents, and shall be cleaned and provided with new glass wool packing or replaced as
required to eliminate errors due to resid
...
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