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Part B: Supplementary Information Sheet (SIS)
FR Recognition List Number 056 Date of Entry 06/07/2021 
FR Recognition Number 2-289
Standard
ISO 10993-12 Fifth edition 2021-01
Biological evaluation of medical devices - Part 12: Sample preparation and reference materials
Scope/Abstract
This document specifies requirements and gives guidance on the procedures in the preparation of samples and the selection of reference materials for medical device testing primarily in biological test systems primarily in accordance with one or more parts of the ISO 10993 series.
Specifically, this document addresses the following:
- test sample selection;
- selection of representative portions from a medical device;
- test sample preparation;
- experimental controls;
- selection of, and requirements for, reference materials;
- preparation of extracts.
This document is not applicable to live cells but can be relevant to the material or medical device components of combination products containing live cells.
Extractions for chemical characterization are covered in ISO 10993-18. Clause 7, 8, 9, 10 [with the exception of 10.3.5 and 10.3.11 b)], and 11 can apply to extractions for chemical characterization. Information given in C.1 to C.4 can also be relevant.
Extent of Recognition
Complete standard
Rationale for Recognition
This standard is relevant to medical devices and is recognized on its scientific and technical merit and/or because it supports existing regulatory policies.
Transition Period
FDA recognition of ISO10993-12 Fourth edition 2012-07-01 [Rec# 2-191] will be superseded by recognition of ISO 10993-12 Fifth edition 2021-01 [Rec# 2-289]. FDA will accept declarations of conformity, in support of premarket submissions, to [Rec# 2-191] until July 9, 2023. After this transition period, declarations of conformity to [Rec# 2-191] will not be accepted.
Public Law, CFR Citation(s) and Procode(s)*
21 CFR 58 Good Laboratory Practice for Nonclinical Laboratory Studies
Relevant FDA Guidance and/or Supportive Publications*
Guidance for Industry and Food and Drug Administration Staff: Use of International Standard ISO 10993-1, "Biological evaluation of medical devices--Part 1: Evaluation and testing within a risk management process", Issued September 2020.
FDA Technical Contacts
 Chandramallika (Molly) Ghosh
  FDA/OC/CDRH/OPEQ/OHTV/DHTVB/
  301-796-6496
  molly.ghosh@fda.hhs.gov
 Samanthi Wickramasekara
  CDRH/OSEL/DBCMS
  --
  Samanthi.Wickramasekara@fda.hhs.gov
Standards Development Organization
ISO International Organization for Standardization https://www.iso.org/
FDA Specialty Task Group (STG)
Biocompatibility
*These are provided as examples and others may be applicable.
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