Abstract: In order to improve the quality of enamel units enamel tank for storage water heaters, refer to the relevant enamel standards in Germany and Australia, and run a comparative method, compared with the original standard these contents of "standard name and scope of application, cathodic protection, adhesion requirements and test methods, hot water erosion resistance requirements and test methods, alkali resistance test methods, testing regulations" are introduced and analyzed in detail, emphasizing the "ratio of sacrifice anode quality to enamel area" and "changes of test methods and weightlessness requirements for hot water erosion resistance" the purpose is to arouse the great attention of water heaters companies, and to do all the preparations before the standard version change in advance in accordance with the analysis content.

Key words: Water heaters, Cathodic protection, Electronic anode, Adhesion, Hot water erosion resistance, Alkali resistance, Testing regulations