ISO 4504:2023

Plastics — Polyethylene (PE) — Determination of co-monomer content by solution state 13C-NMR spectrometry

This document specifies two methods for the determination of co-monomer contents of polyethylene products by solution state 13C-NMR spectrometry (nuclear magnetic resonance spectrometry): — method A: inverse gated decoupling method. — method B: insensitive nuclei enhanced by polarization transfer method; This document is applicable to copolymers of ethylene having a content of other 1-olefinic monomers of less than a mass fraction of 50 %. This document is not applicable to ethylene homopolymers or copolymers in which ethylene is polymerized with two or more type 1-olefin comonomers.

Plastiques — polyéthylène (PE) — Détermination de la teneur en co-monomères par spectroscopie RMN du carbone 13

General Information

• Status: Published
• Publication Date: 15-Jun-2023
• ICS: 83.080.20 - Thermoplastic materials
• Technical Committee: ISO/TC 61/SC 9 - Thermoplastic materials
• Drafting Committee: ISO/TC 61/SC 9/WG 6 - Polyolefins
• Current Stage: 9092 - International Standard to be revised
• Completion Date: 28-Sep-2023

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 4504
First edition
2023-06
Plastics — Polyethylene (PE) —
Determination of co-monomer
13
content by solution state C-NMR
spectrometry
Plastiques — polyéthylène (PE) — Détermination de la teneur en co-
monomères par spectroscopie RMN du carbone 13
Reference number
ISO 4504:2023(E)
© ISO 2023

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ISO 4504:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2023 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 4504:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Symbols . 2
3.3 Abbreviated terms . 2
4 Principle . 2
5 Reagents and materials . 2
6 Apparatus . 3
7 Preparation and preservation of test samples . 3
8 Method A — Inverse gated decoupling method . 3
8.1 Sample preparation . 3
8.2 Procedure . 4
8.3 Calculation . 4
9 Method B — Insensitive nuclei enhanced by polarization transfer method .5
9.1 Sample preparation . 5
9.2 Procedure . 5
9.3 Calculation . 6
10 Expressi
...

DRAFT INTERNATIONAL STANDARD
ISO/DIS 4504
ISO/TC 61/SC 9 Secretariat: KATS
Voting begins on: Voting terminates on:
2022-09-13 2022-12-06
Plastics — Polyethylene (PE) — Determination of co-
13
monomer content by solution state C-NMR spectrometry
ICS: 83.080.20
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
This document is circulated as received from the committee secretariat.
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 4504:2022(E)
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. © ISO 2022

---------------------- Page: 1 ----------------------
ISO/DIS 4504:2022(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 4504
ISO/TC 61/SC 9 Secretariat: KATS
Voting begins on: Voting terminates on:

Plastics — Polyethylene (PE) — Determination of co-
13
monomer content by solution state C-NMR spectrometry
ICS: 83.080.20
COPYRIGHT PROTECTED DOCUMENT
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2022
THEREFORE SUBJECT TO CHANGE AND MAY
This document is circulated as received from the committee secretariat.
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
or ISO’s member body in the country of the requester. BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
ISO copyright office
USER PURPOSES, DRAFT INTERNATIONAL
CP 401 • Ch. de Blandonnet 8
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
CH-1214 Vernier, Geneva
POTENTIAL TO BECOME STANDARDS TO
Phone: [phone]
WHICH REFERENCE MAY BE MADE IN
Reference number
Email: [e-mail]
NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 4504:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
  © ISO 2022 – All rights reserved
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022

---------------------- Page: 2 ----------------------
ISO/DIS 4504:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Symbols . 2
3.3 Abbreviated terms . 2
4 Principle . 2
5 Reagents and materials . 2
6 Apparatus .
...