# ISO 13781:1997 — Withdrawn and superseded ISO standards

For ISO 13781:1997, item title is Poly(L-lactide) resins and fabricated forms for surgical implants — In vitro degradation testing; status code is 9599; successor is ISO 13781:2017; withdrawn / published date is 1997-01-22, recorded from its source on 2026-08-05.

- **Identifier:** ISO 13781:1997 _(verified: appears in the quote below)_
- **Item title:** Poly(L-lactide) resins and fabricated forms for surgical implants — In vitro degradation testing _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 13781:2017
- **Withdrawn / published date:** 1997-01-22 _(verified: appears in the quote below)_

## What the source says

> 22467,IS,,ISO 13781:1997,Poly(L-lactide) resins and fabricated forms for surgical implants — In vitro degradation testing,Résines et éléments à base de poly(L-lactide) pour implants chirurgicaux — Essais de dégradation in vitro,1997-01-22,1,['11.040.40'],ISO/TC 150/SC 1,9599,,[64565],"['en','fr']",9,<p>Describes methods for the determination of chemical and mechanical changes in properties of poly(L-lactide) under in vitro degradation testing conditions.The poly L-lactid is used for the manufacture of surgical implants. The purpose is to compare and/or evaluate materials or processing conditions.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).