The NACE TM0177 Method D (DCB) test is a blend of interactive physical and chemical
conditions. It is becoming a common test used successfully throughout the world. After more than 25
years of DCB testing, this paper considers some of the following issues. What KISSC are we calculating
and using, especially when changing the environment of exposure? How can we verify the mechanical
aspects of the test? What are the obvious and not so obvious variations in the test? If the test is not
done perfectly can you still use the data? How should we improve the test method?