ISO/DIS 13741-1

Plastics/rubber -- Polymer dispersions and rubber latices (natural and synthetic) -- Determination of residual monomers and other organic components by capillary-column gas chromatography

Plastiques/caoutchouc -- Dispersions de polymères et latex de caoutchouc (naturel et synthétique) -- Détermination des monomères résiduels et autres constituants organiques par chromatographie en phase gazeuse sur colonne capillaire

Standards Content (sample)

DRAFT INTERNATIONAL STANDARD
ISO/DIS 13741-1
ISO/TC 61/SC 9 Secretariat: KATS
Voting begins on: Voting terminates on:
2021-02-01 2021-04-26
Plastics/rubber — Polymer dispersions and rubber latices
(natural and synthetic) — Determination of residual
monomers and other organic components by capillary-
column gas chromatography —
Part 1:
Direct liquid injection method

Plastiques/caoutchouc — Dispersions de polymères et latex de caoutchouc (naturel et synthétique) —

Détermination des monomères résiduels et autres constituants organiques par chromatographie en phase

gazeuse sur colonne capillaire —
Partie 1: Méthode d'injection liquide directe
ICS: 83.040.10; 83.080.01
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ISO/DIS 13741-1:2021(E)
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ISO/DIS 13741-1:2021(E)
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ii © ISO 2021 – All rights reserved
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ISO/DIS 13741-1:2021(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative reference ......................................................................................................................................................................................... 1

3 Principle ........................................................................................................................................................................................................................ 1

4 Reagents ........................................................................................................................................................................................................................ 2

5 Apparatus ..................................................................................................................................................................................................................... 2

6 Preparation of apparatus ............................................................................................................................................................................ 2

7 Calibration .................................................................................................................................................................................................................. 3

8 Procedure..................................................................................................................................................................................................................... 5

9 Calculation .................................................................................................................................................................................................................. 5

10 Precision ....................................................................................................................................................................................................................... 6

11 Test report ................................................................................................................................................................................................................... 6

© ISO 2021 – All rights reserved iii
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ISO/DIS 13741-1:2021(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.

Draft International Standards adopted by the technical committees are circulated to the member

bodies for voting. Publication as an International Standard requires approval by at least 75 % of the

member bodies casting a vote.

International Standard ISO 13741-1 was prepared by Technical Committee ISO/TC 61, Plastics,

Subcommittee SC 9, Thermoplastic materials, in close collaboration with ISO/TC 45, Rubber and rubber

products.

ISO 13741 consists of the following parts, under the general title Plastics/rubber — Polymer dispersions

and rubber latices (natural and synthetic) — Determination of residual monomers and other organic

components by capillary-column gas chromatography:
— Part 1: Direct liquid injection method
— Part 2: Headspace method
iv © ISO 2021 – All rights reserved
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ISO/DIS 13741-1:2021(E)
Introduction

The requirements imposed today by authorities include the assessment of the content of residual

monomers and organic saturated volatiles, for health and environmental reasons sometimes down

to minute traces. Former standards for measurement of residual volatiles based on distillation linked

with titration cannot cope with such exigences.

This part of ISO 13741 presents an advanced method for the determination, by gas chromatography, of

residual monomers and other organic components in polymer dispersions and latices. This standard

provides a method that is in line with present-day requirements for analytical methods and is intended

for use instead of ISO 2008:1987, Rubber latex, styrene-butadiene — Determination of volatile

unsaturates, and ISO 3899:1988, Rubber — Nitrile latex — Determination of residual acrylonitrile

content, where precise measurements of volatile-matter content are needed, and expands their scope

to include other volatile organic components.
© ISO 2021 – All rights reserved v
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DRAFT INTERNATIONAL STANDARD ISO/DIS 13741-1:2021(E)
Plastics/rubber — Polymer dispersions and rubber latices
(natural and synthetic) — Determination of residual
monomers and other organic components by capillary-
column gas chromatography —
Part 1:
Direct liquid injection method

WARNING — This part of ISO 13741 does not purport to address all of the safety problems, if any,

associated with its use. It is the responsibility of the user of this part of ISO 13741 to establish

appropriate safety and health practices and determine the applicability of regulatory limitations

prior to use
1 Scope

1.1 This part of ISO 13741 specifies a method for the determination of residual monomers and

other (saturated) organic components in aqueous polymer dispersions and latices as well as in related

products. It makes use of capillary-column gas chromatography with direct injection of the liquid sample.

1.2 Residual monomers and saturated volatiles that have been successfully determined by this method

include acrylic and methacrylic esters, acrylonitrile, butadiene, styrene, vinyl acetate, vinyl chloride as well

as by-products such as acetaldehyde and ethylbenzene. Butadiene could be co-eluted with cis-2-butene.

NOTE N-butyl acrylate and dibutyl ether cannot be separated with DB1 column. In this case use DB5 column.

1.3 Since the chromatograms obtained normally contain a series of peaks, it is only possible to

determine the content of those volatiles for which response factors have been determined. For the

identification of unknown peaks including SVOC (semi volatile organic compounds), auxiliary methods

like mass spectroscopy or the use of a second GC column with a different polarity are advisable. Toluen

...