# ISO/TS 20399-2:2018 — Withdrawn and superseded ISO standards

For ISO/TS 20399-2:2018, item title is Biotechnology — Ancillary materials present during the production of cellular therapeutic products — Part 2: Best practice guidance for ancillary material suppliers; status code is 9599; successor is ISO 20399:2022; withdrawn / published date is 2018-12-04, recorded from its source on 2026-08-05.

- **Identifier:** ISO/TS 20399-2:2018 _(verified: appears in the quote below)_
- **Item title:** Biotechnology — Ancillary materials present during the production of cellular therapeutic products — Part 2: Best practice guidance for ancillary material suppliers _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 20399:2022
- **Withdrawn / published date:** 2018-12-04 _(verified: appears in the quote below)_

## What the source says

> 70982,TS,,ISO/TS 20399-2:2018,Biotechnology — Ancillary materials present during the production of cellular therapeutic products — Part 2: Best practice guidance for ancillary material suppliers,Biotechnologie — Matériaux auxiliaires présents lors de la production de produits thérapeutiques cellulaires — Partie 2: Lignes directrices de bonne pratique pour les fournisseurs de matériaux auxiliaires,2018-12-04,1,['07.080'],ISO/TC 276,9599,,[79399],['en'],11,"<p>This document provides guidance for ancillary material (AM) suppliers to maintain a high level of lot-to-lot consistency in the aspects of identity, purity, stability, biosafety, performance, as well as the accompanying documentation.</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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).