General principles and requirements for testing of quality and nicotine levels of electronic cigarette liquids

This document specifies the quality testing of e-liquids for vaping products in their fully produced form (“finished e-liquid”), whether containing nicotine or not. It is also applicable to testing of e-liquids when extracted from prefilled cartridges and similar e-liquid presentations to consumers.
This document is intended to be read in conjunction with CEN documents WI 00437001, General principles for manufacturing, filling and holding e-liquids for prefilled containers or products, and WI 00437023, E-liquid Ingredients.
NOTE   Testing for undesirable constituents is outside the scope of this document because their presence in final e-liquid is limited by controls at the ingredient level. The maximum level of undesirable constituents is set in the ingredient specification and monitored by testing at a frequency determined appropriate by the manufacturer.

Allgemeine Grundsätze und Anforderung für die Prüfung der Qualität und des Nikotingehalts von E-Liquids

Dieses Dokument legt die Qualitätsprüfung von E Liquids für Dampfprodukte in ihrer vollständig hergestellten Form ("fertiges E-Liquid") fest, unabhängig davon, ob diese Nikotin enthalten oder nicht. Es ist auch anwendbar auf die Prüfung von E-Liquids, wenn diese aus vorgefüllten Kartuschen extrahiert werden, und ähnliche Präsentationen von E-Liquids für Verbraucher.
Dieses Dokument ist dafür vorgesehen, in Verbindung mit den CEN Dokumenten WI 00437001, General principles for manufacturing, filling and holding e-liquids for prefilled containers or products sowie WI 00437023, E liquid Ingredients, gelesen zu werden.
ANMERKUNG   Die Prüfung auf unerwünschte Bestandteile fällt nicht in den Anwendungsbereich dieses Dokuments, da deren Anwesenheit im endgültigen E-Liquid durch Kontrollen des Gehalts von Inhaltsstoffen begrenzt ist. Der Höchstgehalt an unerwünschten Bestandteilen wird in der Spezifikation hinsichtlich der Inhaltsstoffe festgelegt und durch Prüfen bei einer vom Hersteller festgelegten Häufigkeit überwacht.

Principes généraux et exigences concernant les essais relatifs à la qualité et aux teneurs en nicotine des liquides pour cigarettes électroniques

Le présent document spécifie les essais de qualité auxquels sont soumis les e-liquides pour produits du vapotage à l’état fini (« e-liquide fini »), qu’ils contiennent ou non de la nicotine. Il est également applicable aux essais qui sont conduits sur les e-liquides extraits de cartouches préremplies ou disponibles sous d’autres présentations similaires pour les consommateurs.
Ce document est destiné à être lu conjointement avec les documents du CEN WI 00437001, Principes généraux pour la fabrication, le remplissage et la conservation des e-liquides pour produits ou conteneurs préremplis (General principles for manufacturing, filling and holding e-liquids for prefilled containers or products), et WI 00437023, Ingrédients des e-liquides (E-liquid Ingredients).
NOTE   Les essais de détection de composés indésirables ne relèvent pas du domaine d’application du présent document car leur présence dans le e-liquide final est limitée par les contrôles effectués sur les ingrédients. La teneur maximale en composés indésirables est fixée dans la spécification des ingrédients et surveillée lors d’essais réalisés à une fréquence déterminée par le fabricant.

Splošna načela in zahteve za preskušanje kakovosti in vsebnosti nikotina v tekočinah za elektronske cigarete

Ta dokument določa preskušanje kakovosti e-tekočin za uparjalnike v njihovi polno proizvedeni obliki (»končna e-tekočina«) z nikotinom ali brez njega. Uporablja se tudi za preskušanje e-tekočin, pridobljenih iz predhodno polnjenih kartuš, in podobnih e-tekočin, ki so na voljo potrošnikom.
Ta dokument je treba brati skupaj z dokumentoma CEN WI 00437001, Splošna načela za proizvodnjo, polnjenje in shranjevanje e-tekočin za predhodno polnjene vsebnike ali proizvode ter WI 00437023, Sestavine e-tekočin.
OPOMBA:   Preskušanje neželenih sestavin ne spada na področje uporabe tega dokumenta, ker je njihova prisotnost v končni e-tekočini omejena z nadzorom na ravni sestavin. Največja raven neželenih sestavin je določena v specifikaciji za sestavine in se preskuša s pogostostjo, za katero proizvajalec meni, da je ustrezna.

General Information

Status
Published
Public Enquiry End Date
07-Apr-2021
Publication Date
05-Oct-2022
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
22-Sep-2022
Due Date
27-Nov-2022
Completion Date
06-Oct-2022

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 17633:2022
01-november-2022
Splošna načela in zahteve za preskušanje kakovosti in vsebnosti nikotina v
tekočinah za elektronske cigarete
General principles and requirements for testing of quality and nicotine levels of electronic
cigarette liquids
Allgemeine Grundsätze und Anforderung für die Prüfung der Qualität und des
Nikotingehalts von E-Liquids
Principes généraux et exigences concernant les essais relatifs à la qualité et aux teneurs
en nicotine des liquides pour cigarettes électroniques
Ta slovenski standard je istoveten z: CEN/TS 17633:2022
ICS:
65.160 Tobak, tobačni izdelki in Tobacco, tobacco products
oprema and related equipment
SIST EN 17633:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 17633:2022

---------------------- Page: 2 ----------------------
SIST EN 17633:2022


CEN/TS 17633
TECHNICAL SPECIFICATION

SPÉCIFICATION TECHNIQUE

September 2022
TECHNISCHE SPEZIFIKATION
ICS 65.160
English Version

General principles and requirements for testing of quality
and nicotine levels of electronic cigarette liquids
Principes généraux et exigences concernant les essais Allgemeine Grundsätze und Anforderung für die
relatifs à la qualité et aux teneurs en nicotine des Prüfung der Qualität und des Nikotingehalts von E-
liquides pour cigarettes électroniques Liquids
This Technical Specification (CEN/TS) was approved by CEN on 1 August 2022 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

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, Türkiye 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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 17633:2022 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
SIST EN 17633:2022
CEN/TS 17633:2022 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General requirements . 6
5 Ingredients . 7
6 E-liquids testing . 7
7 Technical records . 9
Bibliography . 10

2

---------------------- Page: 4 ----------------------
SIST EN 17633:2022
CEN/TS 17633:2022 (E)
European foreword
This document (CEN/TS 17633:2022) has been prepared by Technical Committee CEN/TC 437
“Electronic cigarettes and e-liquids”, the secretariat of which is held by AFNOR.
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 organisations of the
following countries are bound to announce this Technical Specification: 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, Türkiye and the
United Kingdom.
3

---------------------- Page: 5 ----------------------
SIST EN 17633:2022
CEN/TS 17633:2022 (E)
Introduction
E-liquid is a term describing liquid either prefilled in vaping products, or available in other forms so that
consumers can fill the reservoirs or soak the wicking material of vaping products. E-liquids can or cannot
contain nicotine. In either case, they generally contain glycerol and/or propylene glycol together with
additional flavouring components. E-liquids are intended to be aerosolised for inhalation by the user.
The recommendations given in this document are relevant to the vast majority of product types currently
available, as well as to those that will be developed. Not all elements of these recommendations will apply
to every type of product, but the definitions can be used to identify recommendations for specific
products within the product sector.
The content is applicable to manufacturers and distributors in Europe and forms a guide for regulators,
enforcement authorities and commercial operators in the area. It is also applicable to consultancies,
laboratories and testing houses engaged in or advising on, the manufacturing of e-liquids and e-liquid
components.
This document can provide state of the art guidance for the testing of e-liquids for quality and nicotine
level; however, in cases where national regulations currently exist, said regulations take precedence over
this document.
4

---------------------- Page: 6 ----------------------
SIST EN 17633:2022
CEN/TS 17633:2022 (E)
1 Scope
This document specifies the manufacturing quality testing of e-liquids for vaping products in their fully
produced form, i.e. “finished e-liquid”, at the point of manufacture, whether containing nicotine or not.
This document is intended to be read in conjunction with EN 17647 and EN 17648.
NOTE Testing for undesirable constituents is outside the scope of this document because their presence in final
e-liquid is limited by controls at the ingredient level. The maximum level of undesirable constituents is set in the
ingredient specification and monitored by testing at a frequency determined appropriate by the manufacturer.
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.
EN 17647, General principles for manufacturing, filling and holding e-liquids for prefilled containers or
products
ISO 20714, E-liquid — Determination of nicotine, propylene glycol and glycerol in liquids used in electronic
nicotine delivery devices — Gas chromatographic method
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
e-liquid
base liquid, which might or might not contain nicotine and/or ingredients, intended for transformation
into an aerosol by a vaping product
3.2
finished e-liquid
base liquid, which might or might not contain nicotine and/or ingredients, intended for transformation
into an aerosol by a vaping product
Note 1 to entry: Finished e-liquid can refer to bulk e-liquid stored in large volume vessels prior to final filling into
individual refill containers or e-liquid that has been filled into refill containers or cartridges.
3.3
vaping product
product that vaporizes e-liquid to generate an inhalable aerosol carried by air drawn through the device
by the user
Note 1 to entry: Vaping products are also referred to as electronic cigarette, e-cig, vapour product, personal
vaporizer or ENDS/ENNDS.
Note 2 to entry: Vaping products differ from tobacco products in that they do not contain tobacco.
5

---------------------- Page: 7 ----------------------
SIST EN 17633:2022
CEN/TS 17633:2022 (E)
3.4
nicotine
(S)-3-(1-methyl-2-pyrrolidinyl) pyridine, conforming to the Chemical Abstracts Service nomenclature
1
under CAS RN® 54-11-5
3.5
e-liquid cartridge
e-liquid container that can be loaded directly into a vaping product, which can be disposable
3.6
compound
1
individual chemical substance that usually has a unique CAS RN®
3.7
constituent
individual chemical substance within an ingredient
3.8
ingredient
any compound or mixture of compounds intentionally included in an e-liquid
EXAMPLES Vegetable glycerol, propylene glycol, nicotine, flavourings.
3.9
flavouring
ingredient that imparts smell and/or taste
3.10
manufacturer
any entity which manufactures a product or has a product designed or manufactured, and/or markets
that product under their name or trademark
4 General requirements
4.1 E-liquids testing
E-liquids testing (analysis)
...

SLOVENSKI STANDARD
SIST-TS CEN/TS 17633:2022
01-november-2022
Splošna načela in zahteve za preskušanje kakovosti in vsebnosti nikotina v
tekočinah za elektronske cigarete
General principles and requirements for testing of quality and nicotine levels of electronic
cigarette liquids
Allgemeine Grundsätze und Anforderung für die Prüfung der Qualität und des
Nikotingehalts von E-Liquids
Principes généraux et exigences concernant les essais relatifs à la qualité et aux teneurs
en nicotine des liquides pour cigarettes électroniques
Ta slovenski standard je istoveten z: CEN/TS 17633:2022
ICS:
65.160 Tobak, tobačni izdelki in Tobacco, tobacco products
oprema and related equipment
SIST-TS CEN/TS 17633:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST-TS CEN/TS 17633:2022

---------------------- Page: 2 ----------------------
SIST-TS CEN/TS 17633:2022


CEN/TS 17633
TECHNICAL SPECIFICATION

SPÉCIFICATION TECHNIQUE

September 2022
TECHNISCHE SPEZIFIKATION
ICS 65.160
English Version

General principles and requirements for testing of quality
and nicotine levels of electronic cigarette liquids
Principes généraux et exigences concernant les essais Allgemeine Grundsätze und Anforderung für die
relatifs à la qualité et aux teneurs en nicotine des Prüfung der Qualität und des Nikotingehalts von E-
liquides pour cigarettes électroniques Liquids
This Technical Specification (CEN/TS) was approved by CEN on 1 August 2022 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

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, Türkiye 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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 17633:2022 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
SIST-TS CEN/TS 17633:2022
CEN/TS 17633:2022 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General requirements . 6
5 Ingredients . 7
6 E-liquids testing . 7
7 Technical records . 9
Bibliography . 10

2

---------------------- Page: 4 ----------------------
SIST-TS CEN/TS 17633:2022
CEN/TS 17633:2022 (E)
European foreword
This document (CEN/TS 17633:2022) has been prepared by Technical Committee CEN/TC 437
“Electronic cigarettes and e-liquids”, the secretariat of which is held by AFNOR.
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 organisations of the
following countries are bound to announce this Technical Specification: 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, Türkiye and the
United Kingdom.
3

---------------------- Page: 5 ----------------------
SIST-TS CEN/TS 17633:2022
CEN/TS 17633:2022 (E)
Introduction
E-liquid is a term describing liquid either prefilled in vaping products, or available in other forms so that
consumers can fill the reservoirs or soak the wicking material of vaping products. E-liquids can or cannot
contain nicotine. In either case, they generally contain glycerol and/or propylene glycol together with
additional flavouring components. E-liquids are intended to be aerosolised for inhalation by the user.
The recommendations given in this document are relevant to the vast majority of product types currently
available, as well as to those that will be developed. Not all elements of these recommendations will apply
to every type of product, but the definitions can be used to identify recommendations for specific
products within the product sector.
The content is applicable to manufacturers and distributors in Europe and forms a guide for regulators,
enforcement authorities and commercial operators in the area. It is also applicable to consultancies,
laboratories and testing houses engaged in or advising on, the manufacturing of e-liquids and e-liquid
components.
This document can provide state of the art guidance for the testing of e-liquids for quality and nicotine
level; however, in cases where national regulations currently exist, said regulations take precedence over
this document.
4

---------------------- Page: 6 ----------------------
SIST-TS CEN/TS 17633:2022
CEN/TS 17633:2022 (E)
1 Scope
This document specifies the manufacturing quality testing of e-liquids for vaping products in their fully
produced form, i.e. “finished e-liquid”, at the point of manufacture, whether containing nicotine or not.
This document is intended to be read in conjunction with EN 17647 and EN 17648.
NOTE Testing for undesirable constituents is outside the scope of this document because their presence in final
e-liquid is limited by controls at the ingredient level. The maximum level of undesirable constituents is set in the
ingredient specification and monitored by testing at a frequency determined appropriate by the manufacturer.
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.
EN 17647, General principles for manufacturing, filling and holding e-liquids for prefilled containers or
products
ISO 20714, E-liquid — Determination of nicotine, propylene glycol and glycerol in liquids used in electronic
nicotine delivery devices — Gas chromatographic method
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
e-liquid
base liquid, which might or might not contain nicotine and/or ingredients, intended for transformation
into an aerosol by a vaping product
3.2
finished e-liquid
base liquid, which might or might not contain nicotine and/or ingredients, intended for transformation
into an aerosol by a vaping product
Note 1 to entry: Finished e-liquid can refer to bulk e-liquid stored in large volume vessels prior to final filling into
individual refill containers or e-liquid that has been filled into refill containers or cartridges.
3.3
vaping product
product that vaporizes e-liquid to generate an inhalable aerosol carried by air drawn through the device
by the user
Note 1 to entry: Vaping products are also referred to as electronic cigarette, e-cig, vapour product, personal
vaporizer or ENDS/ENNDS.
Note 2 to entry: Vaping products differ from tobacco products in that they do not contain tobacco.
5

---------------------- Page: 7 ----------------------
SIST-TS CEN/TS 17633:2022
CEN/TS 17633:2022 (E)
3.4
nicotine
(S)-3-(1-methyl-2-pyrrolidinyl) pyridine, conforming to the Chemical Abstracts Service nomenclature
1
under CAS RN® 54-11-5
3.5
e-liquid cartridge
e-liquid container that can be loaded directly into a vaping product, which can be disposable
3.6
compound
1
individual chemical substance that usually has a unique CAS RN®
3.7
constituent
individual chemical substance within an ingredient
3.8
ingredient
any compound or mixture of compounds intentionally included in an e-liquid
EXAMPLES Vegetable glycerol, propylene glycol, nicotine, flavourings.
3.9
flavouring
ingredient that imparts smell and/or taste
3.10
manufacturer
any entity which manufactures a product or has a product designed or manufactured, and/or markets
that product under their name or trademark
4 General requirements
4.1 E-liquids testing
E-liquids
...

SLOVENSKI STANDARD
oSIST prEN 17633:2021
01-april-2021
Splošna načela in zahteve za preskušanje kakovosti in ravni nikotina v e-tekočinah
General principles and requirements for testing for quality and nicotine levels of e-liquids
Allgemeine Grundsätze und Anforderung für die Prüfung der Qualität und des
Nikotingehalts von E-Liquids
Principes généraux et exigences pour les essais de qualité et la détermination de la
teneur en nicotine des e-liquides
Ta slovenski standard je istoveten z: prEN 17633
ICS:
65.160 Tobak, tobačni izdelki in Tobacco, tobacco products
oprema and related equipment
oSIST prEN 17633:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 17633:2021

---------------------- Page: 2 ----------------------
oSIST prEN 17633:2021


DRAFT
EUROPEAN STANDARD
prEN 17633
NORME EUROPÉENNE

EUROPÄISCHE NORM

January 2021
ICS 65.160
English Version

General principles and requirements for testing for quality
and nicotine levels of e-liquids
Principes généraux et exigences pour les essais de Allgemeine Grundsätze und Anforderung für die
qualité et la détermination de la teneur en nicotine des Prüfung der Qualität und des Nikotingehalts von E-
e-liquides Liquids
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 437.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


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. prEN 17633:2021 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
oSIST prEN 17633:2021
prEN 17633:2021 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General requirements . 7
5 Compounds of interest . 7
6 E-liquids testing . 7
7 Technical records . 10
Bibliography . 11

2

---------------------- Page: 4 ----------------------
oSIST prEN 17633:2021
prEN 17633:2021 (E)
European foreword
This document (prEN 17633:2021) has been prepared by Technical Committee CEN/TC 437 “Electronic
cigarettes and e-liquids”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
3

---------------------- Page: 5 ----------------------
oSIST prEN 17633:2021
prEN 17633:2021 (E)
Introduction
E-liquid is a term describing liquid either prefilled in vaping products, or available in other forms so that
consumers can fill the reservoirs or soak the wicking material of vaping products. E-liquids may or may
not contain nicotine. In either case, they generally contain glycerol and/or propylene glycol together with
additional flavouring components. E-liquids are intended to be aerosolised for inhalation by the user.
This document establishes the general principles and requirements for the testing of quality and nicotine
levels in e-liquids for vaping products in their fully produced state.
The recommendations given in this document are relevant to the vast majority of product types currently
available, as well as to those that will be developed. Not all elements of these recommendations will apply
to every type of product, but the definitions may be used to identify recommendations for specific
products within the product sector.
This document can provide state of the art guidance for the testing of e-liquids for quality and nicotine
level; however, in cases where national regulations currently exist, said regulations take precedence over
this document.
4

---------------------- Page: 6 ----------------------
oSIST prEN 17633:2021
prEN 17633:2021 (E)
1 Scope
This document specifies the quality testing of e-liquids for vaping products in their fully produced form
(“finished e-liquid”), whether containing nicotine or not. It is also applicable to testing of e-liquids when
extracted from prefilled cartridges and similar e-liquid presentations to consumers.
This document is intended to be read in conjunction with CEN documents WI 00437001, General
principles for manufacturing, filling and holding e-liquids for prefilled containers or products, and
WI 00437023, E-liquid Ingredients.
NOTE Testing for undesirable constituents is outside the scope of this document because their presence in final
e-liquid is limited by controls at the ingredient level. The maximum level of undesirable constituents is set in the
ingredient specification and monitored by testing at a frequency determined appropriate by the manufacturer.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
1
WI 00437001, General principles for manufacturing, filling and holding e-liquids for prefilled containers
or products
ISO 20714:2019, E-liquid — Determination of nicotine, propylene glycol and glycerol in liquids used in
electronic nicotine delivery devices — Gas chromatographic method
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
e-liquid
base liquid, which may or may not contain nicotine and/or ingredients, intended for transformation into
an aerosol by an electronic cigarette
3.2
vaping product
product that vapourises e-liquid to generate an inhalable aerosol carried by air drawn through the device
by the user
Note 1 to entry: Vaping products also referred to as electronic cigarette, e-cig, vapour product, personal vapouriser
or ENDS/ENNDS.
Note 2 to entry: Vaping products differ from tobacco products in that they do not contain tobacco.

1
In preparation.
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oSIST prEN 17633:2021
prEN 17633:2021 (E)
3.3
nicotine
(S)-3-(1-methyl-2-pyrrolidinyl) pyridine, conforming to the Chemical Abstracts Service nomenclature
under n° CAS: 54-11-5
3.4
e-liquid cartridge
e-liquid container that can be loaded directly into an e-cigarette, which can be disposable
3.5
compound
individual chemical substance that usually has a unique CAS#
3.6
constituent
individual chemical substance within an ingredient
3.7
ingredient
any compound or mixture of compounds intentionally included in an e-liquid
EXAMPLE Vegetable glycerol, propylene glycol, nicotine, flavourings
3.8
flavouring
ingredient that imparts smell and/or taste
3.9
manufacturer
any entity which manufactures a product or has a product designed or manufactured, and/or markets
that product under their name or trademark
3.10
product batch
products manufactured in a defined production schedule and specified volume from identified
components/base ingredients according to the batch specification
3.11
batch specification
document itemizing the inputs and processes for manufacturing a specific product batch that can be used
for batch traceability purposes
3.12
release specification
...

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