oSIST prEN ISO 23322:2021
(Main)Paints and varnishes - Determination of solvents in coating materials containing organic solvents only - Gas-chromatographic method (ISO 23322:2021)
Paints and varnishes - Determination of solvents in coating materials containing organic solvents only - Gas-chromatographic method (ISO 23322:2021)
This document specifies a method for the gas-chromatographic determination of the qualitative and quantitative composition of solvents contained in a product. The method is applicable to coating materials containing solely organic solvents (generally called conventional coating materials) and binder solutions and non-aqueous dispersions containing solely organic solvents.
The method defined in this document is not applicable for determination of volatile organic compounds (VOC) and semi-volatile organic compounds (SVOC) content.
For determination of VOC and SVOC, see ISO 11890-2.
Lösemittel für Beschichtungsstoffe - Bestimmung der Lösemittel in ausschließlich organische Lösemittel enthaltenden Beschichtungsstoffen - Gaschromatographisches Verfahren (ISO 23322:2021)
Peintures et vernis - Détermination des solvants dans les produits de peinture contenant uniquement des solvants organiques - Méthode par chromatographie en phase gazeuse (ISO 23322:2021)
Barve in laki - Določevanje topil v premazih, ki vsebujejo samo organska topila - Plinska kromatografska metoda (ISO 23322:2021)
General Information
Standards Content (sample)
SLOVENSKI STANDARD
oSIST prEN ISO 23322:2021
01-september-2021
Barve in laki - Določevanje topil v premazih, ki vsebujejo samo organska topila -
Plinska kromatografska metoda (ISO 23322:2021)Paints and varnishes - Determination of solvents in coating materials containing organic
solvents only - Gas-chromatographic method (ISO 23322:2021)Lösemittel für Beschichtungsstoffe - Bestimmung der Lösemittel in ausschließlich
organische Lösemittel enthaltenden Beschichtungsstoffen - Gaschromatographisches
Verfahren (ISO 23322:2021)
Peintures et vernis - Détermination des solvants dans les produits de peinture contenant
uniquement des solvants organiques - Méthode par chromatographie en phase gazeuse
(ISO 23322:2021)Ta slovenski standard je istoveten z: prEN ISO 23322
ICS:
87.040 Barve in laki Paints and varnishes
87.060.30 Topila Solvents
oSIST prEN ISO 23322:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 23322:2021
INTERNATIONAL ISO
STANDARD 23322
First edition
2021-03
Paints and varnishes — Determination
of solvents in coating materials
containing organic solvents only —
Gas-chromatographic method
Peintures et vernis — Détermination des solvants dans les produits de
peinture contenant uniquement des solvants organiques — Méthode
par chromatographie en phase gazeuse
Reference number
ISO 23322:2021(E)
ISO 2021
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oSIST prEN ISO 23322:2021
ISO 23322:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
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
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Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
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oSIST prEN ISO 23322:2021
ISO 23322:2021(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 ................................................................................................................................................................................... 3
6.1.5 Capillary separation column .................................................................................................................................. 3
6.1.6 Analytical system performance criteria ....................................................................................................... 3
6.2 Injection syringe .................................................................................................................................................................................... 3
6.3 Data processing ...................................................................................................................................................................................... 3
6.4 Sample vial ................................................................................................................................................................................................ 3
7 Reagents ........................................................................................................................................................................................................................ 4
7.1 General .......................................................................................................................................................................................................... 4
7.2 Internal standard .................................................................................................................................................................................. 4
7.3 Gases ................................................................................................................................................................................................................ 4
7.4 Calibration substances ..................................................................................................................................................................... 4
7.5 Extraction solvent ................................................................................................................................................................................. 4
8 Sampling ........................................................................................................................................................................................................................ 5
9 Choice of sample injection system ..................................................................................................................................................... 5
10 Procedure..................................................................................................................................................................................................................... 5
10.1 Gas chromatographic conditions ............................................................................................................................................. 5
10.2 Injection volume .................................................................................................................................................................................... 5
10.3 Calibration .................................................................................................................................................................................................. 5
10.3.1 General...................................................................................................................................................................................... 5
10.3.2 Preparation of calibration solutions ............................................................................................................... 5
10.3.3 Analysis of the multi-point calibration ......................................................................................................... 6
10.4 Quality assurance.................................................................................................................................................................................. 7
10.5 Sample preparation and analysis ............................................................................................................................................ 7
10.5.1 Direct injection .................................................................................................................................................................. 7
10.5.2 Head space injection ..................................................................................................................................................... 7
10.5.3 Preparation of test samples for analysis without multiple standard additions ........ 7
10.5.4 Data acquisition for sample measurement ............................................................................................... 8
11 Quantitative determination of compound content with respect to CSRF ..................................................8
12 Expression of results ........................................................................................................................................................................................ 8
13 Precision ....................................................................................................................................................................................................................... 8
13.1 Repeatability ............................................................................................................................................................................................. 8
13.2 Reproducibility ....................................................................................................................................................................................... 9
14 Test report ................................................................................................................................................................................................................... 9
Annex A (informative) Examples for GC method conditions ....................................................................................................10
Bibliography .............................................................................................................................................................................................................................13
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oSIST prEN ISO 23322:2021
ISO 23322:2021(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 16, Chemical analysis.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 2021 – All rights reserved
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oSIST prEN ISO 23322:2021
INTERNATIONAL STANDARD ISO 23322:2021(E)
Paints and varnishes — Determination of solvents in
coating materials containing organic solvents only — Gas-
chromatographic method
1 Scope
This document specifies a method for the gas-chromatographic determination of the qualitative and
quantitative composition of solvents contained in a product. The method is applicable to coating
materials containing solely organic solvents (generally called conventional coating materials) and
binder solutions and non-aqueous dispersions containing solely organic solvents.The method defined in this document is not applicable for determination of volatile organic compounds
(VOC) and semi-volatile organic compounds (SVOC) content.NOTE For 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 document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 4618, Paints and varnishes — Terms and definitionsISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling
3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 4618 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/
4 Units
The analytical results are expressed as a mass fraction.
5 Principle
The volatile fraction of the sample of product under test is separated by gas chromatography. Either
a hot sample injection system, a cold sample injection system or a headspace injection system can be
used, depending on the product type. After the components have been identified, they are quantified
from the peak areas using the internal standard method.© ISO 2021 – All rights reserved 1
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oSIST prEN ISO 23322:2021
ISO 23322:2021(E)
6 Apparatus
6.1 Gas chromatograph
6.1.1 General
The gas chromatograph shall be suitable for use with capillary separation columns and meet the
conditions specified in 6.1.2 to 6.1.4.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.6.1.2 Sample injection system
6.1.2.1 General
The method provides a choice between three sample injection systems:
— hot-injection system with sample splitter;
— cold-injection system with sample splitter;
— headspace injector.
6.1.2.2 Hot-injection system
The instrument shall have a variable-temperature injection block with sample splitter. The injection
temperature shall be capable of being set to an accuracy of 1 K. Standard operating temperature shall
be between 250 °C and 280 °C.NOTE It is useful to use silanized glass wool to retain non-volatile constituents. The active sides of silanized
glass wool can be a sink for organic compounds and significantly influence the recovery rate in the lower range
of the method. The occurrence of adsorption is revealed by peak tailing, in particular with components of low
volatility and/or high polarity.6.1.2.3 Cold-injection system
The cold-injection system shall be provided with temperature programming for heating from ambient
to 300 °C including a sample splitter for split operation.NOTE It is useful to use silanized glass wool to retain non-volatile constituents. The active sides of silanized
glass wool can be a sink for organic compounds and significantly influence the recovery rate in the lower range
of the method. The occurrence of adsorption is revealed by peak tailing, in particular with components of low
volatility and/or high polarity.6.1.2.4 Headspace injection
It shall be possible to set the following values:
— controlled sample temperature: 150 °C;
— controlled transfer line and dispensing valve temperatures: 160 °C;
— temperature hold time: 4 min.
6.1.3 Oven
The oven shall be capable of being heated between 40 °C and 300 °C, both isothermally and under
programmed temperature control. It shall be possible to set the oven temperature to within 1 K. The
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oSIST prEN ISO 23322:2021
ISO 23322:2021(E)
final temperature of the temperature program shall not exceed the maximum operating temperature of
the separation column (see manufacturer's instructions).6.1.4 Detector
6.1.4.1 General
One of the following two detectors shall be used.
6.1.4.2 Mass spectrometer (MS) or other mass-selective detector (MSD)
To prevent condensation, the d
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