# ISO 16486-4:2022 — Withdrawn and superseded ISO standards For ISO 16486-4:2022, item title is Plastics piping systems for the supply of gaseous fuels — Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing — Part 4: Valves; status code is 9599; successor is ISO 16486-4:2025; withdrawn / published date is 2022-01-14, recorded from its source on 2026-08-05. - **Identifier:** ISO 16486-4:2022 _(verified: appears in the quote below)_ - **Item title:** Plastics piping systems for the supply of gaseous fuels — Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing — Part 4: Valves _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 16486-4:2025 - **Withdrawn / published date:** 2022-01-14 _(verified: appears in the quote below)_ ## What the source says > 78883,IS,,ISO 16486-4:2022,Plastics piping systems for the supply of gaseous fuels — Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing — Part 4: Valves,Systèmes de canalisations en matières plastiques pour la distribution de combustibles gazeux — Systèmes de canalisations en polyamide non plastifié (PA-U) avec assemblages par soudage et assemblages mécaniques — Partie 4: Robinets,2022-01-14,2,"['75.200','83.140.30']",ISO/TC 138/SC 7,9599,[65195],[87593],"['en','fr']",20,"
This document specifies the characteristics of valves made from unplasticized polyamide (PA-U) in accordance with ISO 16486-1, intended to be buried and used for the supply of gase ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).