SIST EN ISO 22518:2021

Paints and varnishes - Determination of solvents in water-thinnable coating materials - Gas-chromatographic method (ISO 22518:2019)

This document specifies a method for the gas-chromatographic determination of the solvents in water-thinnable paints and varnishes, binder solutions, emulsions and dispersions.
With the precision stated in Clause 13, single components above 0,02 % (mass fraction) can be determined quantitatively.
The method defined in this document is not applicable for the determination of Volatile Organic Compounds (VOC) and Semi-Volatile Organic Compounds (SVOC) content.
NOTE       For the determination of VOC and SVOC, see ISO 11890‑2[2].

Beschichtungsstoffe - Bestimmung von Lösemitteln in wasserverdünnbaren Beschichtungsstoffen - Gaschromatographisches Verfahren (ISO 22518:2019)

Dieses Dokument legt ein Verfahren zur gaschromatographischen Bestimmung von Lösemitteln in wasserverdünnbaren Beschichtungsstoffen, Bindemittellösungen, Emulsionen und Dispersionen fest.
Mit der im Abschnitt 13 angegebenen Präzision lassen sich Einzelkomponenten oberhalb von 0,02 % (Massenanteil) quantitativ bestimmen.
Das in diesem Dokument festgelegte Verfahren ist nicht für die Bestimmung des Gehaltes an flüchtigen organischen Verbindungen (VOC, en: volatile organic compound) und halbflüchtigen organischen Verbindungen (SVOC, en: semi-volatile organic compound) anwendbar.
ANMERKUNG Für die Bestimmung von VOC und SVOC siehe ISO 11890 2 [2].

Peintures et vernis - Détermination des solvants dans des peintures diluable à l'eau - Méthode par chromatographie en phase gazeuse (ISO 22518:2019)

Le présent document spécifie une méthode de détermination par chromatographie en phase gazeuse des solvants présents dans les solutions de liant, les émulsions, les dispersions, ainsi que les peintures et vernis diluables à l'eau.
Avec la fidélité indiquée à l'Article 13, il est possible de déterminer de manière quantitative les constituants d'une concentration supérieure à 0,02 % (en fraction massique).
La méthode définie dans le présent document ne s'applique pas à la mesure de la teneur en composés organiques volatils (COV) et en composés organiques semi‑volatils (COSV).
NOTE       Pour la quantification des COV et des COSV, voir l'ISO 11890‑2[2].

Barve in laki - Določevanje topil v premazih, ki se lahko razredčijo z vodo - Metoda s plinsko kromatografijo (ISO 22518:2019)

General Information

• Status: Published
• Public Enquiry End Date: 01-Oct-2020
• Publication Date: 27-Jan-2021
• ICS: 87.040 - Paints and varnishes
• Technical Committee: IBLP - Paints and varnishes
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 11-Jan-2021
• Due Date: 18-Mar-2021
• Completion Date: 28-Jan-2021
• Ref Project: EN ISO 22518:2020 - Paints and varnishes - Determination of solvents in water-thinnable coating materials - Gas-chromatographic method (ISO 22518:2019)

Overview

EN ISO 22518:2020 - Paints and varnishes: Determination of solvents in water‑thinnable coating materials specifies a gas‑chromatographic method for identifying and quantifying solvents in water‑thinnable paints and varnishes, binder solutions, emulsions and dispersions. Results are expressed as mass fraction (%) and, with the precision given in Clause 13, single components above 0.02 % (mass fraction) can be determined quantitatively. This method is explicitly not intended for determining overall VOC or SVOC content (see ISO 11890‑2 for VOC/SVOC).

Key topics and technical requirements

• Principle: Separation of solvent components by gas chromatography (GC) followed by quantification using the internal standard method.
• Sample types: Water‑thinnable paints, varnishes, binder solutions, emulsions and dispersions.
• Detection limits: Quantitative determination for single components > 0.02 % (mass fraction) with precision defined in Clause 13.
• Apparatus:
  • GC suitable for capillary separation columns.
  • Instrument parts in contact with sample must be chemically resistant (e.g., glass).
  • Support for hot and cold injection systems depending on product type.
  • For hot injection: variable‑temperature injection block with split/splitless capability; injection temperature controllable to ±1 K; adjustable and monitorable split ratio.
  • Hot injection splitter inserts should contain silanized glass wool to retain non‑volatile constituents and prevent adsorption (cleaning/replacement required).
• Analytical steps: Sampling, sample preparation, choice of injection system, GC conditions, calibration, analysis and expression of results.
• Precision and reporting: Clause 13 provides repeatability and reproducibility data; test report requirements are specified.

Applications and practical value

• Quality control in paint and coatings production to verify solvent composition and batch consistency.
• Formulation development for R&D teams assessing solvent behavior in water‑thinnable systems.
• Contract laboratory testing for customer specifications and supplier verification.
• Regulatory and compliance checks where specific solvent concentrations need to be documented (note: not for total VOC/SVOC determination).
• Useful for troubleshooting production issues linked to solvent content (e.g., drying performance, film formation).

Who should use this standard

• Paint, varnish and coatings manufacturers
• Analytical and contract testing laboratories
• R&D and QC chemists working with water‑based coatings
• Standards and compliance officers managing product specifications

Related standards

• ISO 11890‑2 - Determination of VOC and SVOC (use for VOC/SVOC content)
• ISO 4618 - Paints and varnishes - Terms and definitions
• ISO 15528 - Sampling of paints, varnishes and raw materials

Keywords: EN ISO 22518:2020, gas chromatographic method, solvent determination, water‑thinnable paints, paints and varnishes, GC analysis, solvent quantification, 0.02% detection limit.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2021
Barve in laki - Določevanje topil v premazih, ki se lahko razredčijo z vodo - Metoda
s plinsko kromatografijo (ISO 22518:2019)
Paints and varnishes - Determination of solvents in water-thinnable coating materials -
Gas-chromatographic method (ISO 22518:2019)
Beschichtungsstoffe - Bestimmung von Lösemitteln in wasserverdünnbaren
Beschichtungsstoffen - Gaschromatographisches Verfahren (ISO 22518:2019)
Peintures et vernis - Détermination des solvants dans des peintures diluable à l'eau -
Méthode par chromatographie en phase gazeuse (ISO 22518:2019)
Ta slovenski standard je istoveten z: EN ISO 22518:2020
ICS:
87.040 Barve in laki Paints and varnishes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 22518
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2020
EUROPÄISCHE NORM
ICS 87.040
English Version
Paints and varnishes - Determination of solvents in water-
thinnable coating materials - Gas-chromatographic
method (ISO 22518:2019)
Peintures et vernis - Détermination des solvants dans Beschichtungsstoffe - Bestimmung von Lösemitteln in
des peintures diluable à l'eau - Méthode par wasserverdünnbaren Beschichtungsstoffen -
chromatographie en phase gazeuse (ISO 22518:2019) Gaschromatographisches Verfahren (ISO 22518:2019)
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 22518:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 22518:2018 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
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 22518:2019 has been approved by CEN as EN ISO 22518:2020 without any modification.

INTERNATIONAL ISO
STANDARD 22518
First edition
2019-07
Paints and varnishes —
Determination of solvents in water-
thinnable coating materials — Gas-
chromatographic method
Peintures et vernis — Détermination des solvants dans des peintures
diluable à l'eau — Méthode par chromatographie en phase gazeuse
Reference number
ISO 22518:2019(E)
©
ISO 2019
ISO 22518:2019(E)
© 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: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

ISO 22518:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Units . 1
5 Principle . 1
6 Apparatus . 2
6.1 Gas chromatograph . 2
6.1.1 General. 2
6.1.2 Sample injection system . 2
6.1.3 Oven . 2
6.1.4 Detector . 2
6.1.5 Capillary separation column . 3
6.1.6 Injection syringe. 3
6.2 Data acquisition . 3
6.3 Sample vessel . 3
7 Reagents . 3
7.1 Gases . 3
7.2 Internal standard . 3
7.3 Calibration substances . 3
7.4 Diluents . 3
8 Sampling . 4
9 Choice of sample injection system . 4
10 Procedure. 4
10.1 Gas chromatographic conditions . 4
10.1.1 General. 4
10.1.2 Example of hot injection and gas chromatography of a water-thinnable
coating material . 4
10.1.3 Cold injection and gas chromatography of a water-thinnable coating
material (example) . . 6
10.2 Injection volume . 7
10.3 Calibration . 7
10.4 Sample preparation and analysis . 7
11 Expression of results . 8
12 Precision . 8
12.1 General . 8
12.2 Repeatability . 9
12.3 Reproducibility . 9
13 Test report . 9
Bibliography .11
ISO 22518:2019(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
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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

INTERNATIONAL STANDARD ISO 22518:2019(E)
Paints and varnishes — Determination of solvents
in water-thinnable coating materials — Gas-
chromatographic method
1 Scope
This document specifies a method for the gas-chromatographic determination of the solvents in water-
thinnable paints and varnishes, binder solutions, emulsions and dispersions.
With the precision stated in Clause 13, single components above 0,02 % (mass fraction) can be
determined quantitatively.
The method defined in this document is not applicable for the determination of Volatile Organic
Compounds (VOC) and Semi-Volatile Organic Compounds (SVOC) content.
[2]
NOTE For the determination of VOC and SVOC, see ISO 11890-2 .
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 documen
...