# ISO 8770:1991 — Withdrawn and superseded ISO standards

For ISO 8770:1991, item title is High-density polyethylene (PE-HD) pipes and fittings for soil and waste discharge (low and high temperature) systems inside buildings — Specifications; status code is 9599; successor is ISO 8770:2003; withdrawn / published date is 1991-06-13, recorded from its source on 2026-08-05.

- **Identifier:** ISO 8770:1991 _(verified: appears in the quote below)_
- **Item title:** High-density polyethylene (PE-HD) pipes and fittings for soil and waste discharge (low and high temperature) systems inside buildings — Specifications _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 8770:2003
- **Withdrawn / published date:** 1991-06-13 _(verified: appears in the quote below)_

## What the source says

> 16185,IS,,ISO 8770:1991,High-density polyethylene (PE-HD) pipes and fittings for soil and waste discharge (low and high temperature) systems inside buildings — Specifications,Tubes et raccords en polyéthylène haute densité (PE-HD) pour les systèmes d'évacuation d'eaux usées et d'eaux-vannes (à basse et à haute température) à l'intérieur des bâtiments — Spécifications,1991-06-13,1,"['91.140.80','83.140.30']",ISO/TC 138/SC 1,9599,,[33706],"['en','fr']",18,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).