ISO/TC 194/WG 12 - Sample preparation and reference materials

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.

ISO 10993-12:2012 specifies requirements and gives guidance on the procedures to be followed in the preparation of samples and the selection of reference materials for medical device testing in biological systems in accordance with one or more parts of ISO 10993. Specifically, ISO 10993-12:2012 addresses the following: test sample selection; selection of representative portions from a device; test sample preparation; experimental controls; selection of, and requirements for, reference materials; preparation of extracts. ISO 10993-12:2012 is not applicable to live cells, but can be relevant to the material or device components of combination products containing live cells.

ISO 10993-12:2007 specifies requirements and gives guidance on the procedures to be followed in the preparation of samples and the selection of reference materials for medical device testing in biological systems in accordance with one or more parts of the ISO 10993 series. Specifically ISO 10993-12:2007 addresses: test sample selection; selection of representative portions from a device; test sample preparation; experimental controls; selection of and requirements for reference materials; preparation of extracts. ISO 10993-12:2007 is not applicable to materials or devices containing live cells.

ISO 10993-12:2002 specifies requirements and gives guidance on the procedures to be followed in the preparation of samples and the selection of reference materials for medical devices testing in biological systems in accordance with one or more parts of the ISO 10993 series. Specifically, ISO 10993-12:2002 addresses: test material selection; selection of representative portions from a device; test sample preparation; experimental controls; selection of and requirements for reference materials; and, preparation of extracts. The applicability of ISO 10993-12:2002 to absorbable materials, materials that polymerize in situ, tissue-engineered medical products and materials of biological origin should be carefully evaluated.

Specifies requirements and guidance on procedures to be followed in the preparation of samples of medical devices for testing in biological systems. Includes test material selection, selection of representative portions from a device and selection of reference materials to demonstrate the suitability of the test system.