# ISO 4434:1977 — Withdrawn and superseded ISO standards

For ISO 4434:1977, item title is Unplasticized polyvinyl chloride (PVC) adaptor fittings for pipes under pressure — Laying length and size of threads — Metric series; status code is 9599; successor is ISO 1452-3:2009; withdrawn / published date is 1977-09-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4434:1977 _(verified: appears in the quote below)_
- **Item title:** Unplasticized polyvinyl chloride (PVC) adaptor fittings for pipes under pressure — Laying length and size of threads — Metric series _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 1452-3:2009
- **Withdrawn / published date:** 1977-09-01 _(verified: appears in the quote below)_

## What the source says

> 10337,IS,,ISO 4434:1977,Unplasticized polyvinyl chloride (PVC) adaptor fittings for pipes under pressure — Laying length and size of threads — Metric series,Raccords d'adaptation en polychlorure de vinyle (PVC) non plastifié pour tubes sous pression — Cotes de montage et dimension des filetages — Série métrique,1977-09-01,1,['23.040.45'],ISO/TC 138/SC 2,9599,,[50363],"['en','fr']",3,"<p>Specification of the metric series of diameters to be used and of dimensions, which are common to all types of PVC-adaptor fittings for pipes under pressure to secure the connection to existing metal pipes and/or fittings with pipe threads.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).