This National Standard of Canada is equivalent to International Standard ISO
10993-5:1999. 1 Scope This part of ISO 10993 describes test methods to assess the in vitro
cytotoxicity of medical devices. These methods specify the incubation of cultured cells either directly or
through diffusion a) with extracts of a device, and/or
b) in contact with a device. These methods are designed to determine the biological response of mammalian
cells in vitro using appropriate biological parameters.