EN ISO 8985:2022
(Main)Plastics - Ethylene/vinyl acetate copolymer (EVAC) thermoplastics - Determination of vinyl acetate content (ISO 8985:2022, Corrected version 2022-08)
Plastics - Ethylene/vinyl acetate copolymer (EVAC) thermoplastics - Determination of vinyl acetate content (ISO 8985:2022, Corrected version 2022-08)
This document specifies two categories of method for the determination of the vinyl acetate (VAC) content of ethylene/vinyl acetate (EVAC) copolymer, for use in the designation of such copolymers according to ISO 21301-1. One category is referred to as “reference methods”, the other as “test methods”.
The “reference methods” are used to calibrate the method used for the determination of the vinyl acetate content of ethylene/vinyl acetate copolymers.
The “test methods” are other methods which can be used for the determination if they are calibrated using one of the reference methods described in Clause 4, provided they show a certain permissible repeatability.
Kunststoffe - Ethylen-Vinylacetat-Copolymer (EVAC)-Thermoplasten - Bestimmung des Vinylacetatgehalts (ISO 8985:2022, korrigierte Fassung 2022-08)
Dieses Dokument legt zwei Kategorien von Verfahren zur Bestimmung des Vinylacetat(VAC, en: vinyl acetate)-Gehalts von Ethylen-Vinylacetat-Copolymeren (EVAC) zur Verwendung in der Bezeichnung derartiger Copolymere nach ISO 21301 1 fest. Dabei bezeichnet eine Kategorie die „Referenzverfahren“ und die andere die „Prüfverfahren“.
Die „Referenzverfahren“ werden angewendet, um das zur Bestimmung des Vinylacetatgehalts von Ethylen-Vinylacetat-Copolymeren angewendete Verfahren zu kalibrieren.
Die „Prüfverfahren“ stellen weitere Verfahren dar, die für die Bestimmung angewendet werden können, wenn sie unter Anwendung eines der in Abschnitt 4 beschriebenen Referenzverfahren kalibriert wurden und wenn sie eine bestimmte zulässige Wiederholpräzision aufweisen.
SICHERHEITSVORKEHRUNGEN — Anwender dieses Dokuments sollten, falls zutreffend, mit der üblichen Laborpraxis vertraut sein. Dieses Dokument gibt nicht vor, alle im Zusammenhang mit seiner Anwendung gegebenenfalls vorhandenen Sicherheitsrisiken zu berücksichtigen. Es liegt in der Verantwortung des Anwenders, angemessene Maßnahmen in Bezug auf den Gesundheits- und Arbeitsschutz einzuleiten.
Plastiques - Copolymères éthylène/acétate de vinyle (EVAC) thermoplastiques - Dosage de l'acétate de vinyle (ISO 8985:2022, Version corrigée 2022-08)
Le présent document spécifie deux catégories de méthodes pour le dosage de l’acétate de vinyle (VAC) dans les copolymères éthylène/acétate de vinyle (EVAC) en vue de leur désignation conformément à l’ISO 21301-1. Une catégorie est dite «méthodes de référence», l’autre «méthode d’essai».
Les «méthodes de référence» sont utilisées pour l’étalonnage de la méthode utilisée pour le dosage de l’acétate de vinyle dans les copolymères éthylène/acétate de vinyle.
Les «méthodes d’essai» sont d’autres méthodes qui peuvent être utilisées pour la détermination si elles sont étalonnées à l’aide de l’une des méthodes de référence décrites à l’Article 4 et si elles montrent une certaine répétabilité admissible.
Polimerni materiali - Termoplastični kopolimer etilena in vinil acetata (EVAC-kopolimer) - Ugotavljanje deleža vinil acetata (ISO 8985:2022, popravljena različica 2022-08)
Ta dokument določa dve kategoriji metod za ugotavljanje deleža vinil acetata (VAC) v termoplastičnem kopolimeru etilena in vinil acetata (EVAC-kopolimer) za uporabo pri označevanju takih kopolimerov v skladu s standardom ISO 21301-1. Ena kategorija se imenuje »referenčne metode«, druga pa »preskusne metode«. »Referenčne metode« se uporabljajo za umerjanje metode za ugotavljanje deleža vinil acetata v termoplastičnih kopolimerih etilena in vinil acetata. »Preskusne metode« so druge metode, ki jih je mogoče uporabiti za določevanje, če so umerjene z uporabo ene od referenčnih metod, opisanih v točki 4, ter pod pogojem, da omogočajo določeno dovoljeno ponovljivost.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2022
Nadomešča:
SIST EN ISO 8985:1999
Polimerni materiali - Termoplastični kopolimer etilena in vinil acetata (EVAC-
kopolimer) - Ugotavljanje deleža vinil acetata (ISO 8985:2022)
Plastics - Ethylene/vinyl acetate copolymer (EVAC) thermoplastics - Determination of
vinyl acetate content (ISO 8985:2022)
Kunststoffe - Ethylen-Vinylacetat-Copolymer (EVAC)-Thermoplasten - Bestimmung des
Vinylacetatgehalts (ISO 8985:2022)
Plastiques - Copolymères éthylène/acétate de vinyle (EVAC) thermoplastiques - Dosage
de l'acétate de vinyle (ISO 8985:2022)
Ta slovenski standard je istoveten z: EN ISO 8985:2022
ICS:
83.080.20 Plastomeri Thermoplastic materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 8985
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2022
EUROPÄISCHE NORM
ICS 83.080.20 Supersedes EN ISO 8985:1998
English Version
Plastics - Ethylene/vinyl acetate copolymer (EVAC)
thermoplastics - Determination of vinyl acetate content
(ISO 8985:2022)
Plastiques - Copolymères éthylène/acétate de vinyle Kunststoffe - Ethylen-Vinylacetat-Copolymer (EVAC)-
(EVAC) thermoplastiques - Dosage de l'acétate de Thermoplasten - Bestimmung des Vinylacetatgehalts
vinyle (ISO 8985:2022) (ISO 8985:2022)
This European Standard was approved by CEN on 25 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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8985:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 8985:2022) has been prepared by Technical Committee ISO/TC 61 "Plastics" in
collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by NBN.
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 August 2022, and conflicting national standards shall
be withdrawn at the latest by August 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.
This document supersedes EN ISO 8985:1998.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. 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 8985:2022 has been approved by CEN as EN ISO 8985:2022 without any modification.
INTERNATIONAL ISO
STANDARD 8985
Third edition
2022-01
Plastics — Ethylene/vinyl acetate
copolymer (EVAC) thermoplastics —
Determination of vinyl acetate content
Plastiques — Copolymères éthylène/acétate de vinyle (EVAC)
thermoplastiques — Dosage de l'acétate de vinyle
Reference number
ISO 8985:2022(E)
ISO 8985:2022(E)
© ISO 2022
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 8985:2022(E)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Reference methods .1
4.1 Reference method 1: Hydrolysis and back titration . 1
4.1.1 Principle . 1
4.1.2 Reagents . 2
4.1.3 Apparatus . 2
4.1.4 Procedure . 3
4.1.5 Expression of results . 3
4.1.6 Test report . 4
4.2 Reference method 2: Saponification and potentiometric titration. 4
4.2.1 Principle . 4
4.2.2 Reagents . 4
4.2.3 Apparatus . 4
4.2.4 Procedure . 5
4.2.5 Expression of results . 6
4.2.6 Test report . 6
4.3 Reference method 3: Measurement of oxygen . 6
4.3.1 Principle . 6
4.3.2 Apparatus . 6
4.3.3 procedure . . . 7
4.3.4 Sampling . 11
4.3.5 Calibration . . . 11
4.3.6 Calculation of vinyl acetate content .12
4.3.7 Test report .12
5 Examples of test methods .12
5.1 Method using infrared spectrometry .12
5.1.1 Principle . 12
5.1.2 Apparatus and materials .12
5.1.3 Procedure .13
5.1.4 Expression of results .15
5.1.5 Test report . 16
5.2 Acidimetric method . 16
5.2.1 Principle . 16
5.2.2 Reagents and materials . 16
5.2.3 Apparatus . 17
5.2.4 Procedure . 17
5.2.5 Expression of results . 18
5.2.6 Test report . 18
5.3 Iodometric method . 19
5.3.1 Principle . 19
5.3.2 Reagents . 19
5.3.3 Apparatus . 19
5.3.4 Procedure .
...
SLOVENSKI STANDARD
01-april-2022
Nadomešča:
SIST EN ISO 8985:1999
Polimerni materiali - Termoplastični kopolimer etilena in vinil acetata (EVAC-
kopolimer) - Ugotavljanje deleža vinil acetata (ISO 8985:2022, popravljena različica
2022-08)
Plastics - Ethylene/vinyl acetate copolymer (EVAC) thermoplastics - Determination of
vinyl acetate content (ISO 8985:2022, Corrected version 2022-08)
Kunststoffe - Ethylen-Vinylacetat-Copolymer (EVAC)-Thermoplasten - Bestimmung des
Vinylacetatgehalts (ISO 8985:2022, korrigierte Fassung 2022-08)
Plastiques - Copolymères éthylène/acétate de vinyle (EVAC) thermoplastiques - Dosage
de l'acétate de vinyle (ISO 8985:2022, Version corrigée 2022-08)
Ta slovenski standard je istoveten z: EN ISO 8985:2022
ICS:
83.080.20 Plastomeri Thermoplastic materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 8985
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2022
EUROPÄISCHE NORM
ICS 83.080.20 Supersedes EN ISO 8985:1998
English Version
Plastics - Ethylene/vinyl acetate copolymer (EVAC)
thermoplastics - Determination of vinyl acetate content
(ISO 8985:2022, Corrected version 2022-08)
Plastiques - Copolymères éthylène/acétate de vinyle Kunststoffe - Ethylen-Vinylacetat-Copolymer (EVAC)-
(EVAC) thermoplastiques - Dosage de l'acétate de Thermoplasten - Bestimmung des Vinylacetatgehalts
vinyle (ISO 8985:2022, Version corrigée 2022-08) (ISO 8985:2022, korrigierte Fassung 2022-08)
This European Standard was approved by CEN on 25 December 2021.
This European Standard was corrected and reissued by the CEN-CENELEC Management Centre on 14 September 2022.
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, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N
EUROPÄISCHES KOMITEE FÜR NORMUN G
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. EN ISO 8985:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 8985:2022) has been prepared by Technical Committee ISO/TC 61 "Plastics" in
collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by NBN.
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 August 2022, and conflicting national standards shall
be withdrawn at the latest by August 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.
This document supersedes EN ISO 8985:1998.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. 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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 8985:2022, Corrected version 2022-08 has been approved by CEN as EN ISO 8985:2022
without any modification.
INTERNATIONAL ISO
STANDARD 8985
Third edition
2022-01
Corrected version
2022-08
Plastics — Ethylene/vinyl acetate
copolymer (EVAC) thermoplastics —
Determination of vinyl acetate content
Plastiques — Copolymères éthylène/acétate de vinyle (EVAC)
thermoplastiques — Dosage de l'acétate de vinyle
Reference number
ISO 8985:2022(E)
ISO 8985:2022(E)
© ISO 2022
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 8985:2022(E)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Reference methods .1
4.1 Reference method 1: Hydrolysis and back titration . 1
4.1.1 Principle . 1
4.1.2 Reagents . 2
4.1.3 Apparatus . 2
4.1.4 Procedure . 3
4.1.5 Expression of results . 3
4.1.6 Test report . 4
4.2 Reference method 2: Saponification and potentiometric titration. 4
4.2.1 Principle . 4
4.2.2 Reagents . 4
4.2.3 Apparatus . 4
4.2.4 Procedure . 5
4.2.5 Expression of results . 6
4.2.6 Test report . 6
4.3 Reference method 3: Measurement of oxygen . 6
4.3.1 Principle . 6
4.3.2 Apparatus . 6
4.3.3 procedure . . 7
4.3.4 Sampling . 11
4.3.5 Calibration . . . 11
4.3.6 Calculation of vinyl acetate content .12
4.3.7 Test report .12
5 Examples of test methods .12
5.1 Method using infrared spectrometry .12
5.1.1 Principle . 12
5.1.2 Apparatus and materials .12
5.1.3 Procedure .13
5.1.4 Expression of results . 16
5.1.5 Test report . 16
5.2 Acidimetric method . 16
5.2.1 Principle . 16
5.2.2 Reagents and materials . 16
5.2.3 Apparatus . 17
5.2.4 Procedure . 17
5.2.5 Expression of results . 18
5.2.6 Test report . 19
5.3 Iodometric method . 19
5.3.1 Principle . 19
5.3.2 Reagents .
...
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