IEC 60068-2-14:2009 provides a test to determine the ability of components, equipment or other articles to withstand rapid changes of ambient temperature. The exposure times adequate to accomplish this will depend upon the nature of the specimen. The major changes with regard to the previous edition concern: - merging of the previous version of IEC 60068-2-14 with IEC 60068-2-33: Guidance on change of temperature tests; - updating of the figures, changes to some of the wording and editorial corrections made for clarification. It has the status of a horizontal standard in accordance with IEC Guide 104.