# ISO/TS 20721:2020 — Withdrawn and superseded ISO standards For ISO/TS 20721:2020, item title is Implants for surgery — General guidelines and requirements for assessment of absorbable metallic implants; status code is 9599; successor is ISO/TS 20721:2025; withdrawn / published date is 2020-09-15, recorded from its source on 2026-08-05. - **Identifier:** ISO/TS 20721:2020 _(verified: appears in the quote below)_ - **Item title:** Implants for surgery — General guidelines and requirements for assessment of absorbable metallic implants _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/TS 20721:2025 - **Withdrawn / published date:** 2020-09-15 _(verified: appears in the quote below)_ ## What the source says > 68916,TS,,ISO/TS 20721:2020,Implants for surgery — General guidelines and requirements for assessment of absorbable metallic implants,Implants chirurgicaux — Lignes directrices et exigences générales pour l'évaluation des implants métalliques absorbables,2020-09-15,1,['11.040.40'],ISO/TC 150,9599,,[89265],['en'],14,"
This document established the currently recognized approaches and special considerations needed when evaluating the in vitro and in vivo performance of absorbable metals and implants fabricated, in whole or in part, from them. This document describes how the evaluation of these metals can differ from those utilized for permanent non-absorbable implantable implant ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).