Research on the evaluation system for the implementation effect of the Chinese water efficiency mandatory national standard for water closets (GB 25502-2017) based on big data platform and FAHP method

To enhance the methodology to evaluate the implementation effects of "Minimum allowable values of water efficiency and water efficiency grades for water closets" (GB 25502-2017), we analyzed various influence factors and established a system using AHP method and conducted empirical research based on the Fuzzy comprehensive evaluation method. An AHP evaluation model for the implementation effect of the water efficiency standard was established for the first time, which consisted of 31 indicators. Most evaluation results of these indicators could be found though big data platform. The empirical research results mostly from big data investigation show that the implementation effect of the standard is nearly good, especially the technical requirements are consistent with other standards, regulations and market development. They are advanced with international standards. This paper establishes a method system for the evaluation of the implementation effect of water efficiency standards, conducts an empirical analysis of the implementation effect of GB 25502-2017, and explores the application of big data analysis in the evaluation of the implementation effect of the standards..