# ISO 3451-5:1989 — Withdrawn and superseded ISO standards

For ISO 3451-5:1989, item title is Plastics — Determination of ash — Part 5: Poly(vinyl chloride); status code is 9599; successor is ISO 3451-5:2002; withdrawn / published date is 1989-09-07, recorded from its source on 2026-08-05.

- **Identifier:** ISO 3451-5:1989 _(verified: appears in the quote below)_
- **Item title:** Plastics — Determination of ash — Part 5: Poly(vinyl chloride) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 3451-5:2002
- **Withdrawn / published date:** 1989-09-07 _(verified: appears in the quote below)_

## What the source says

> 8786,IS,,ISO 3451-5:1989,Plastics — Determination of ash — Part 5: Poly(vinyl chloride),Plastiques — Détermination du taux de cendres — Partie 5: Poly(chlorure de vinyle),1989-09-07,1,['83.080.20'],ISO/TC 61/SC 5,9599,[5871],[29805],"['en','fr']",2,"<p>Specifies two methods for the determination of the ash of poly(vinylchloride): method A: direct calcination at 850 grade Celsius until constant mass is reached, and method B sulfated ash with sulfuric acid treatment after combustion and final heating of the residue until constant mass is reached. Method B is recommended if lead compounds are present. The general procedures given in ISO 34511 shall be followed.</p>"

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).