## 4 Standard Test Data Analysis Waterproofing Performance Gradation
### Test Result Values Grade Section Setting
#### 4.4.1 Tensile Performance Grade  
(1) Tensile strength  
To set grade section for tensile strength test data by Table 7, they were derived as grade 1 with 14.2 N/mm or more, grade 2 with 9.5 N/mm or more and less than 14.2 N/mm, grade 3 with 5.5 N/mm or more and less than 9.5 N/mm, grade 5 with 4.7 N/mm or more and less than 5.5 N/mm and grade 5 with 3.0 N/mm or more and less than 4.7 N/mm. To show these as graph, they were set as in the following Figure 1.  
(2) Elongation ratio  
According to Table 7, setting sections of each grade of standard test data value of elongation ratio were derived as in the following Figure 2, which were grade 1 with 1208% or more, grade 2 with 815% or more and less than 1208%, grade 3 with 536% or more and less than 815%, grade 4 with 436% or more and less than 536% and grade 5 with 200% or more and less than 436%.  
\begin{table}
\begin{tabular}{c c c} \hline \hline
**Classification** & **Grade Section Application Ratio** & **Grounds for Application** \\ \hline \multirow{4}{*}{Grade} & 1 & 10\% \\ \cline{2-3}  & 2 & 20\% \\ \cline{2-3}  & 3 & 40\% \\ \cline{2-3}  & 4 & 20\% \\ \cline{2-3}  & 5 & 10\% \\ \hline \hline \end{tabular}
\end{table}
Table 6: Proposed 5 Grade 5 Scale system.  
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline  & \multirow{2}{*}{**Classification**} & \multicolumn{6}{c}{**Standard Value Section for Each Grade**} & \multicolumn{2}{c}{**KS**} \\ \cline{3-8}  & & **Grade 1** & **Grade 2** & **Grade 3** & **Grade 4** & **Grade 5** & \begin{tabular}{c} **Performance** \\ **Standard *** \\ \end{tabular} \\ \hline \multirow{2}{*}{\begin{tabular}{c} Tensile \\ performance \\ \end{tabular} } & Tensile strength & \(9.5\leq S\) & \(9.5\leq S<14.2\) & \(5.5\leq S<9.5\) & \(4.7\leq S<5.5\) & \(3.0\leq S<4.7\) & 3.0 or more \\ \cline{2-8}  & Elongation ratio (\%) & \(120\leq E\) & \(815\leq E\leq 1208\) & \(536\leq E\leq 815\) & \(436\leq E\leq 536\) & \(200\leq E\leq 436\) & 200 or more \\ \hline \multirow{4}{*}{\begin{tabular}{c} Temperature \\ dependency \\ \end{tabular} } & Tearing performance (N) & \(93.0\leq S\) & \(49.8\leq S\leq 93.0\) & \(36.0\leq S<49.8\) & \(31.4\leq S<36.0\) & \(25.0\leq S<31.4\) & 25 or more \\ \cline{2-8}  & Test temperature & \
\begin{tabular}{c} Tensile strength \\ (N/mm) \\ \end{tabular} & \(10.8\leq S\) & \(6.8\leq S<10.8\) & \(4.1\leq S<6.8\) & \(3.3\leq S<4.1\) & \(2.0\leq S<3.3\) & 2.0 or more \\ \cline{2-8}  & Elongation ratio (\%) & \(598\leq E\) & \(423\leq E\leq 598\) & \(249\leq E\leq 423\) & \(208\leq E\leq 249\) & \(150\leq E\leq 208\) & 150 or more \\ \cline{2-8}  & Test temperature &
\begin{tabular}{c} Tensile strength \\ (N/mm) \\ \end{tabular} & \(23.4\leq S\) & \(15.8\leq S<23.4\) & \(7.8\leq S<15.8\) & \(7.0\leq S<7.8\) & \(5.0\leq S<7.0\) & 5.0 or more \\ \cline{2-8}  & Elongation ratio (\%) & \(376\leq E\) & \(287\leq E\leq 376\) & \(172\leq E\leq 287\) & \(93\leq E\leq 172\) & \(50\leq E\leq 93\) & 50 or more \\ \hline \multicolumn{8}{c}{Adhesion part stability performance (N/mm)} & \(3.2\leq S\) & \(2.4\leq S<3.2\) & \(2.0\leq S<2.4\) & \(1.8\leq S<2.0\) & \(1.5\leq S<1.8\) & 1.5 or more \\ \hline \multicolumn{8}{c}{Adhesion performance (N/mm)} & \(3.8\leq S\) & \(2.4\leq S<3.8\) & \(2.0\leq S<2.4\) & \(1.8\leq S<2.0\) & \(1.5\leq S<1.8\) & 1.5 or more \\ \hline \hline \end{tabular}  
* Performance standard of Table 4 (basic quality standard).  
\end{table}
Table 7: Grade section setting of each of 9 test criteria of KS F 4934.