# ISO 8986-1:1993 — Withdrawn and superseded ISO standards For ISO 8986-1:1993, item title is Plastics — Polybutene (PB) moulding and extrusion materials — Part 1: Designation system and basis for specifications; status code is 9599; successor is ISO 8986-1:2009; withdrawn / published date is 1993-12-23, recorded from its source on 2026-08-05. - **Identifier:** ISO 8986-1:1993 _(verified: appears in the quote below)_ - **Item title:** Plastics — Polybutene (PB) moulding and extrusion materials — Part 1: Designation system and basis for specifications _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 8986-1:2009 - **Withdrawn / published date:** 1993-12-23 _(verified: appears in the quote below)_ ## What the source says > 16515,IS,,ISO 8986-1:1993,Plastics — Polybutene (PB) moulding and extrusion materials — Part 1: Designation system and basis for specifications,Plastiques — Matériaux à base de polybutène (PB) pour moulage et extrusion — Partie 1: Système de désignation et base de spécification,1993-12-23,1,['83.080.20'],ISO/TC 61/SC 9,9599,,[45084],"['en','fr']",7,"

The types of polybutene plastics are differentiated from each other by a classification system based on appropriate levels of the designatory properties density and melt flow rate and on information about basic polymer parameters, intended application and/or method of processing, important properties, additives, colorants, fillers and reinforc ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).