## 3 Test Results  
### Result of ISO 5660-1  
To investigate the impact of the addition of varying amounts of magnesium hydroxide on the fire performance of expanded graphite-cellulose composite finishing material, ISO 5660-1 tests were conducted three times for each magnesium hydroxide addition level. The parameters assessed include HRR, THR, CO, and CO\({}_{2}\) production, as well as mass loss.  
\begin{table}
\begin{tabular}{c c} \hline
**Toxic Gas** & **C\({}_{f}\) (ppm)** \\ \hline Carbon Dioxide (CO\({}_{2}\)) & 100,000 \\ \hline Carbon Monoxide (CO) & 4000 \\ \hline Hydrogen Sulfide (H\({}_{2}\)S) & 750 \\ \hline Ammonia (NH\({}_{3}\)) & 750 \\ \hline Formaldehyde (HCHO) & 500 \\ \hline Hydrogen Chloride (HCl) & 500 \\ \hline Sulfur Dioxide (SO\({}_{2}\)) & 400 \\ \hline Acrylonitrile (CH\({}_{2}\)CHCN) & 400 \\ \hline Nitrogen Oxides (NO\({}_{x}\)) & 250 \\ \hline Phenol (C\({}_{6}\)H\({}_{5}\)OH) & 250 \\ \hline Hydrogen Cyanide (HCN) & 150 \\ \hline Hydrogen Bromide (HBr) & 150 \\ \hline Hydrogen Fluoride (HF) & 100 \\ \hline \end{tabular}
\end{table}
Table 5: Toxicity concentration fatal to humans with NES 713.  
Figure 5 shows the variations in HRR with changes in magnesium hydroxide content, showing the measured values obtained from three tests for each specimen.  
Figure 6 shows the difference in THR and fire performance with respect to changes in magnesium hydroxide content. The values presented are obtained from three tests for each specimen.  
Figures 7 and 8, respectively, depict the changes in the measured values of CO production and CO\({}_{2}\) production over time during the ISO 5660-1 testing process with respect to variations in magnesium hydroxide content. The values presented are obtained from three tests for each specimen.  
Figure 9 shows the changes in the measured values of mass over time during the ISO 5660-1 testing process with respect to variations in magnesium hydroxide content. The values presented are obtained from three tests for each specimen.  
Figure 5: HRR v time measurements of all specimens: (**a**) Mg(OH)\({}_{2}\) 0 g; (**b**) Mg(OH)\({}_{2}\) 10 g; (**c**) Mg(OH)\({}_{2}\) 20 g; (**d**) Mg(OH)\({}_{2}\) 30 g.  
Figure 7: _Cont_.  
Figure 8: CO\({}_{2}\) production v time measurements of all specimens: (**a**) Mg(OH)\({}_{2}\) 0 g; (**b**) Mg(OH)\({}_{2}\) 10 g; (**c**) Mg(OH)\({}_{2}\) 20 g; (**d**) Mg(OH)\({}_{2}\) 30 g.  
Figure 7: CO production v time measurements of all specimens: (**a**) Mg(OH)\({}_{2}\) 0 g; (**b**) Mg(OH)\({}_{2}\) 10 g; (**c**) Mg(OH)\({}_{2}\) 20 g; (**d**) Mg(OH)\({}_{2}\) 30 g.  
Table 6 presents the fire performance data obtained from ISO 5660-1 testing, which showcases variations in fire performance with changes in magnesium hydroxide content.  
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \begin{tabular}{c} **Sample** \\ **Type** \\ \end{tabular} & **No.** & \
\begin{tabular}{c} **Ignition** \\ **Time** \\ \end{tabular} &
\begin{tabular}{c} **Peak Heat Release** \\ **Rate (kW/m2)** \\ \end{tabular} & \multicolumn{2}{c}{**THR (MJ/m2)**} & \multicolumn{2}{c}{**Toxic Gas Generated**} & \multicolumn{1}{c}{**Mass Loss**} \\ \cline{3-8}  & 1 & 12 s & 87.259 & 9.854 & 30.31 & 0.0069 & 0.204 & 25.76 \\ \cline{2-8} A & 2 & 16 s & 48.999 & 9.05 & 21.217 & 0.0065 & 0.137 & 21.93 \\ \cline{2-8}  & 3 & 11 s & 90.972 & 8.853 & 24.842 & 0.0070 & 0.202 & 21.15 \\ \hline \multirow{3}{*}{B} & 1 & 21 s & 41.262 & 7.293 & 15.678 & 0.0076 & 0.111 & 19.52 \\ \cline{2-8}  & 2 & 14 s & 47.873 & 7.052 & 16.581 & 0.0084 & 0.122 & 21.54 \\ \cline{2-8}  & 3 & 14 s & 48.554 & 7.691 & 17.973 & 0.0086 & 0.119 & 20.94 \\ \hline \hline \end{tabular}
\end{table}
Table 6: ISO 5660-1 test results.  
Figure 9: Mass loss v time measurements of all specimens: (**a**) Mg(OH)\({}_{2}\) 0 g; (**b**) Mg(OH)\({}_{2}\) 10 g; (**c**) Mg(OH)\({}_{2}\) 20 g; (**d**) Mg(OH)\({}_{2}\) 30 g.