prEN 17131-1

SLOVENSKI STANDARD
01-november-2024
Tekstilije in tekstilni izdelki - Določevanje nekaterih preostalih topil - 1. del:
Določevanje aprotičnih topil, metoda z uporabo plinske kromatografije
Textiles and textile products - Determination of certain residual solvents - Part 1:
Determination of aprotic solvents, method using gas chromatography
Textilien und textile Erzeugnisse - Bestimmung bestimmter Lösungsmittelrückstände –
Teil 1: Bestimmung aprotischer Lösungsmittel, Verfahren mittels Gaschromatographie
Textiles et produits textiles - Détermination de certains solvants résiduels - Partie 1 :
Détermination des solvants aprotiques, méthode par chromatographie en phase gazeuse
Ta slovenski standard je istoveten z: prEN 17131-1
ICS:
59.080.01 Tekstilije na splošno Textiles in general
71.040.50 Fizikalnokemijske analitske Physicochemical methods of
metode analysis
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2024
ICS 59.080.01 Will supersede EN 17131:2019
English Version
Textiles and textile products - Determination of certain
residual solvents - Part 1: Determination of aprotic
solvents, method using gas chromatography
Textiles et produits textiles - Détermination de certains Textilien und textile Erzeugnisse - Bestimmung
solvants résiduels - Partie 1 : Méthode par bestimmter Lösemittelrückstände - Teil 1: Bestimmung
chromatographie en phase gazeuse aprotischer Lösemittel, Verfahren mittels
Gaschromatographie
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 248.
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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17131-1:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 5
5 Reagents . 5
6 Apparatus . 6
7 Sampling . 7
7.1 Samples . 7
7.2 Preparation of test specimens . 7
8 Procedure. 7
8.1 Extraction . 7
8.2 Determination with GC-MS . 7
8.2.1 Preparation of the calibration solutions . 7
8.2.2 Determination with GC-MS . 7
9 Expression of results . 7
9.1 Calculation . 7
9.2 Precision of the method . 8
10 Test report . 8
Annex A (informative) Example of parameters for GC-MS determination of DMF, DMAC,
NMP and NEP . 9
Annex B (informative) Reliability of the method. 11
Bibliography . 12
European foreword
This document (prEN 17131-1:2024) has been prepared by Technical Committee CEN/TC 248 “Textiles
and textile products”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document supersedes EN 17131:2019.
— the title has been changed;
— N,N-dimethylacetamide (DMAC) and N-methyl-2-pyrrolidone (NMP) have been included in the
Introduction;
— Clause 1: The scope has been extended to include the analytes DMAC, NMP and NEP;
— Clause 5: DMAC, NMP and NEP have been added;
— 5.8: The descriptions of the preparation of stock solutions have been changed in order to consider
the additional analytes DMAC, NMP and NEP;
— 8.2: The description of the determination with GC-MS has been changed in order to consider the
additional analytes DMAC, NMP and NEP;
— 9.1: The headline has been added and the description of the calculation has been changed in order to
consider the additional analytes DMAC, NMP and NEP;
— 9.2: Precision of the method including the limit of quantification of the test method has been added;
— Clause 10 has been rephrased;
— Annex A has been extended to include the analytes DMAC, NMP and NEP;
— Annex B: Reliability of the method has been added including certain statistical data of an
interlaboratory trial to determine the reliability of the method.
This document is part of a series of documents:
EN 17131-1 , Textiles and textile products — Determination of certain residual solvents — Part 1:
Determination of aprotic solvents, method using gas chromatography
EN 17131-2 , Textiles and textile products — Determination of certain residual solvents — Part 2:
Determination of benzene, method using headspace gas chromatography
A list of all parts in a series can be found on the CEN website: www.cencenelec.eu.

Under preparation. Stage at the time of CEN Enquiry: prEN 17131-1:2024.
Under preparation. Stage at the time of CEN Enquiry: FprEN 17131-2:2024 under preparation for FV.
Introduction
In Europe according to Regulation (EU) 2018/1513 amending Annex XVII to Regulation (EC) No
1907/2006 (REACH) by Entry 72 [1], (a) clothing or related accessories; (b) textiles other than clothing
which, under normal or reasonably foreseeable conditions of use, come into contact with human skin to
an extent similar to clothing; (c) footwear are not to be placed on the market after 1 November 2020, if
they contain more than 3 000 mg/kg of N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMAC)
or N-methyl-2-pyrrolidone (NMP).
This restriction does not apply to: (a) clothing, related accessories or footwear, or parts of clothing,
related accessories or footwear, made exclusively of natural leather, fur or hide; (b) non-textile fasteners
and non-textile decorative attachments; (c) second-hand clothing, related accessories, textiles other than
clothing or footwear; (d) wall-to-wall carpets and textile floor coverings for indoor use, rugs and runners.
It also does not apply to clothing, related accessories, textiles other than clothing, or footwear within the
scope of Regulation (EU) 2016/425 on personal protective equipment or Regulation (EU) 2017/745 on
medical devices. The restriction on textiles other than clothing does not apply to disposable textiles.
“Disposable textiles” means textiles that are designed to be used only once or for a limited time and are
not intended for subsequent use for the same or a similar purpose.
Although the Regulation [1] excludes non-textile fastenings and decorative items, this document is also
suitable for such components.
WARNING — The use of this document involves hazardous materials. It does not purport to address all
of the safety or environmental problems associated with its use. It is the responsibility of users of this
document to take appropriate measures to ensure the safety and health of personnel and the
environment prior to application of the document and fulfil statutory and regulatory requirements for
this purpose.
1 Scope
This document specifies a method using gas chromatography with mass selective detector (GC-MS) for
detection and quantification of extractable N,N-dimethylformamide (DMF), N,N-dimethylacetamide
(DMAC), N-methyl-2-pyrrolidone (NMP) and N-ethyl-2-pyrrolidone (NEP) in filaments and coatings of
textile products.
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 ISO 4787, Laboratory glass and plastic ware — Volumetric instruments — Methods for testing of
capacity and for use (ISO 4787)
EN ISO 5089, Textiles — Preparation of laboratory test samples and test specimens for chemical testing
(ISO 5089)
3 Terms and definitions
No terms and definitions are listed in this document.
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
4 Principle
The sample is cut into small pieces and extracted with methanol, in a sealed vial at 70 °C, in an ultrasonic
bath. An aliquot of the extract is analysed using a gas chromatograph with mass selective detector (GC-
MS).
5 Reagents
Unless otherwise specified, analytical grade chemicals shall be used.
® ®
5.1 Dimethylformamide (DMF), CAS Registry Number (CAS RN ) 68-12-2, highest available
defined purity standard. ®
5.2 Dimethylformamide-d7 (DMF-d7), CAS RN 4472-41-7, highest available defined purity
standard. ®
5.3 N,N-Dimethylacetamide (DMAC), CAS RN 127-19-5, highest available defined purity standard. ®
5.4 N-Methyl-2-pyrrolidone (NMP), CAS RN 872-50-4, highest available defined purity standard. ®
2687-91-4, highest available defined purity standard.
5.5 N-Ethyl-2-pyrrolidone (NEP), CAS RN

3 ® ®
CAS Registry Number (CAS RN ) is a trademark American Chemical Society (ACS). This information is given for
the convenience of users of this document and does not constitute an endorsement by CEN of the product named.
Equivalent products may be used if they can be shown to lead to the same results. ®
5.7 Methanol, CAS RN 67-56-1.
5.8 Stock solutions
5.8.1 General
The laboratory shall decide which compounds need to be determined. Based on this decision the required
stock solution shall be prepared.
5.8.2 Internal standard (IS) — Stock solution
Prepare an IS stock solution of a
...