介绍了适用于散热和非散热试样的干热试验。对于非散热试样，试验Bb和Bd基本上没有偏离早期问题。 干热试验的目的仅限于确定部件、设备或其他物品在高温下使用、运输或储存的能力。 这些干热试验不能使试样在待评估的温度变化期间承受或运行。在这种情况下，有必要使用IEC 60068-2-14测试N:温度变化。 干热试验细分如下: 非热态的干热试验- 耗散试样 -随着温度的逐渐变化，Bb。 散热试样的干热试验 -随着温度的逐渐变化，Bd； -随着温度的逐渐变化，试样始终通电。 本标准中给出的程序通常适用于在试验程序执行期间达到温度稳定性的试样。 与前一版本相比，主要变化如下:试验Ba和Bc已被删除，因为它们比试验Nb更严格，IEC 60068-2-14:温度变化。其次，我们认为删除试验室空气和壁温之间温差的3%值是合理的。 第三，建议在需要时，在整个试验过程中为试样供电；最后，附件已被删除。 具有符合IEC指南104的基本安全出版物的状态。

Deals with dry heat tests applicable both to heat-dissipating and non heat-dissipating specimens. For non heat-dissipating specimens, Tests Bb and Bd do not deviate essentially from earlier issues. The object of the dry heat test is limited to the determination of the ability of components, equipment or other articles to be used, transported or stored at high temperature. These dry heat tests do not enable the ability of specimens to withstand or operate during the temperature variations to be assessed. In this case, it would be necessary to use IEC 60068-2-14 Test N: Change of temperature. The dry heat tests are subdivided as follows: Dry heat test for non heat-dissipating specimens - with gradual change of temperature, Bb. Dry heat tests for heat-dissipating specimens - with gradual change of temperature, Bd; - with gradual change of temperature, specimen powered throughout, Be. The procedures given in this standard are normally intended for specimens that achieve temperature stability during the performance of the test procedure. The main changes from the previous edition are as follows: Tests Ba and Bc have been deleted since they were more severe tests than Test Nb, IEC 60068-2-14: Change of temperature. Secondly it was considered justified to delete the 3 % value on the temperature difference between the chamber air and the wall temperatures. Thirdly it is proposed that the test specimen be powered throughout the test where required; and, finally, the annexes have been removed. Has the status of a basic safety publication in accordance with IEC Guide 104.