Evaluation of powder coatings for electrical devices

Several test methods which have been found to be reliable and correlate with performance on electrical equipment have been presented. These methods cover many of the performance properties which are required of powders and powder coatings and are practical to set up and perform. The apparatus and test equipment required is found in many laboratories or is readily available. Only a small number of test pieces is required for covering all the tests. Many may be performed on the sample test bar prepared by method E8B19. In the interest of adopting functional standard test methods which will be accepted by both suppliers and consumers, it is hoped that the methods presented in this paper will be tried, modified where necessary to meet general practices, and incorporated into industry standards.