# ISO 16486-3:2020 — Withdrawn and superseded ISO standards For ISO 16486-3:2020, item title is Plastics piping systems for the supply of gaseous fuels — Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing — Part 3: Fittings; status code is 9599; successor is ISO 16486-3:2025; withdrawn / published date is 2020-09-17, recorded from its source on 2026-08-05. - **Identifier:** ISO 16486-3:2020 _(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 3: Fittings _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 16486-3:2025 - **Withdrawn / published date:** 2020-09-17 _(verified: appears in the quote below)_ ## What the source says > 74160,IS,,ISO 16486-3:2020,Plastics piping systems for the supply of gaseous fuels — Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing — Part 3: Fittings,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 3: Raccords,2020-09-17,2,"['75.200','83.140.30']",ISO/TC 138/SC 4,9599,"[65076,56839]",[87504],"['en','fr']",23,"

This document specifies the physical and mechanical properties of fittings made from unplasticized polyamide (PA-U) in accordance with ISO 16486‑1, intended to be buried ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).