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)

Dieses Dokument legt ein Verfahren zur gaschromatographischen Bestimmung der qualitativen und quantitativen Zusammensetzung der in einem Produkt enthaltenen Lösemittel fest. Das Verfahren ist anwend¬bar auf Beschichtungsstoffe, die ausschließlich organische Lösemittel enthalten (allgemein als konventionelle Beschichtungsstoffe bezeichnet) sowie auf Bindemittellösungen und nichtwässrige Dispersionen, die aus¬schließlich organische Lösemittel enthalten.
Das in diesem Dokument beschriebene Verfahren gilt nicht für die Bestimmung des Gehalts an flüchtigen organischen Verbindungen (VOC, en: volatile organic compounds) und schwerflüchtigen organischen Ver-bindungen (SVOC, en: semi-volatile organic compounds).
ANMERKUNG   Zur Bestimmung des Gehalts an VOC und SVOC siehe ISO 11890 2.

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)

Le présent document spécifie une méthode pour la détermination par chromatographie en phase gazeuse de la composition qualitative et quantitative de solvants contenus dans un produit. La méthode est applicable aux produits de peinture contenant uniquement des solvants organiques (généralement appelés produits de peinture conventionnels) et aux solutions de liant et dispersions non aqueuses contenant uniquement des solvants organiques.
La méthode définie dans le présent document n'est pas applicable à la détermination de la teneur en composés organiques volatils (COV) et composés organiques semi-volatils (COSV).
NOTE            Pour la détermination des COV et des COSV, voir l'ISO 11890-2.

Barve in laki - Določevanje topil v premazih, ki vsebujejo samo organska topila - Plinska kromatografska metoda (ISO 23322:2021)

Ta dokument določa metodo za določevanje kvalitativne in kvantitativne sestave topil v izdelku s plinsko kromatografijo. Ta metoda se uporablja za premaze, ki vsebujejo samo organska topila (t. i. konvencionalni premazi), ter vezivne raztopine in nevodne disperzije, ki vsebujejo samo organska topila.
Metoda, opredeljena v tem dokumentu, se ne uporablja za določevanje vsebnosti hlapnih organskih spojin (VOC) in polhlapnih organskih spojin (SVOC).
Za določitev hlapnih organskih spojin in polhlapnih organskih spojin glej standard ISO 11890-2.

General Information

Status
Published
Public Enquiry End Date
01-Oct-2021
Publication Date
09-Feb-2022
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
29-Dec-2021
Due Date
05-Mar-2022
Completion Date
10-Feb-2022

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SLOVENSKI STANDARD
SIST EN ISO 23322:2022
01-marec-2022

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: EN ISO 23322:2021
ICS:
87.040 Barve in laki Paints and varnishes
87.060.30 Topila Solvents
SIST EN ISO 23322:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 23322:2022
---------------------- Page: 2 ----------------------
SIST EN ISO 23322:2022
EN ISO 23322
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2021
EUROPÄISCHE NORM
ICS 87.040
English Version
Paints and varnishes - Determination of solvents in coating
materials containing organic solvents only - Gas-
chromatographic method (ISO 23322:2021)

Peintures et vernis - Détermination des solvants dans Lösemittel für Beschichtungsstoffe - Bestimmung der

les produits de peinture contenant uniquement des Lösemittel in ausschließlich organische Lösemittel

solvants organiques - Méthode par chromatographie enthaltenden Beschichtungsstoffen -

en phase gazeuse (ISO 23322:2021) Gaschromatographisches Verfahren (ISO 23322:2021)

This European Standard was approved by CEN on 5 December 2021.

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

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 23322:2021 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 23322:2022
EN ISO 23322:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

---------------------- Page: 4 ----------------------
SIST EN ISO 23322:2022
EN ISO 23322:2021 (E)
European foreword

The text of ISO 23322:2021 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 23322:2021 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 2022, and conflicting national standards shall be

withdrawn at the latest by June 2022.

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.

Any feedback and questions on this document should be directed to the users’ national standards body.

A complete listing of these bodies can be found on the CEN website.

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 23322:2021 has been approved by CEN as EN ISO 23322:2021 without any modification.

---------------------- Page: 5 ----------------------
SIST EN ISO 23322:2022
---------------------- Page: 6 ----------------------
SIST EN ISO 23322:2022
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
---------------------- Page: 7 ----------------------
SIST EN ISO 23322:2022
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

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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 23322:2022
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

© ISO 2021 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 23322:2022
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
---------------------- Page: 10 ----------------------
SIST EN ISO 23322:2022
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 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 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
---------------------- Page: 11 ----------------------
SIST EN ISO 23322:2022
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 syste
...

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.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 23322:2021
---------------------- Page: 2 ----------------------
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
---------------------- Page: 3 ----------------------
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

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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 4 ----------------------
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

© ISO 2021 – All rights reserved iii
---------------------- Page: 5 ----------------------
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
---------------------- Page: 6 ----------------------
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 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 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
---------------------- Page: 7 ----------------------
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

2 © ISO 2021 – All rights reserved
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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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