# ISO 4504:2023 — Withdrawn and superseded ISO standards

For ISO 4504:2023, item title is Plastics — Polyethylene (PE) — Determination of co-monomer content by solution state 13C-NMR spectrometry; status code is 9599; successor is ISO 4504:2025; withdrawn / published date is 2023-06-16, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4504:2023 _(verified: appears in the quote below)_
- **Item title:** Plastics — Polyethylene (PE) — Determination of co-monomer content by solution state 13C-NMR spectrometry _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4504:2025
- **Withdrawn / published date:** 2023-06-16 _(verified: appears in the quote below)_

## What the source says

> 80039,IS,,ISO 4504:2023,Plastics — Polyethylene (PE) — Determination of co-monomer content by solution state 13C-NMR spectrometry,Plastiques — polyéthylène (PE) — Détermination de la teneur en co-monomères par spectroscopie RMN du carbone 13,2023-06-16,1,['83.080.20'],ISO/TC 61/SC 9,9599,,[88256],['en'],25,<p class='MsoBodyText' style='mso-layout-grid-align: none; text-autospace: none;'><span lang='EN-GB' style='mso-bidi-font-size: 12.0pt; mso-fareast-font-family: DengXian;'>This document specifies two methods for the determination of co-monomer contents of polyethylene products by solution state <sup>13</sup>C-NMR spectrometry (nuclear magnetic resonance spectrometry):</span></p><p class='L

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).