# ISO 6964:1986 — Withdrawn and superseded ISO standards

For ISO 6964:1986, item title is Polyolefin pipes and fittings — Determination of carbon black content by calcination and pyrolysis — Test method and basic specification; status code is 9599; successor is ISO 6964:2019; withdrawn / published date is 1986-12-11, recorded from its source on 2026-08-05.

- **Identifier:** ISO 6964:1986 _(verified: appears in the quote below)_
- **Item title:** Polyolefin pipes and fittings — Determination of carbon black content by calcination and pyrolysis — Test method and basic specification _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 6964:2019
- **Withdrawn / published date:** 1986-12-11 _(verified: appears in the quote below)_

## What the source says

> 13514,IS,,ISO 6964:1986,Polyolefin pipes and fittings — Determination of carbon black content by calcination and pyrolysis — Test method and basic specification,Tubes et raccords en polyoléfines — Détermination de la teneur en noir de carbone par calcination et pyrolyse — Méthode d'essai et spécification de base,1986-12-11,1,['23.040.20'],ISO/TC 138/SC 5,9599,,[63054],"['en','fr']",2,"<p>The determination is carried out by pyrolysis of a test portion at 550 °C in nitrogen followd by a calcination in a muffle furnace at 900 °C. The carbon black content is calculated from difference in mass before and after calcination. When so determined the carbon black content in polyethylen pipe material s

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).