This part of IEC 60068 provides three standardized and co-ordinated test methods for determining the ability of a specimen to withstand specified severities of impact. It is used@ in particular@ to demonstrate an acceptable level of robustness when assessing the safety of a product and is primarily intended for the testing of electrotechnical items. It consists of the application to the specimen of a prescribed number of impacts defined by their impact energy and applied in the prescribed directions.This part of IEC 60068 covers energy levels ranging from 0@14 joules (J) to 50 joules (J).Three types of test apparatus are applicable to perform these tests. Annex C provides some guidance as to this aspect.