Weight% | Element | Point 1 | Point 2 | Point 3 | Point 4 | Point 5 |
Before Exposure | Carbon | 97.82% | 97.36% | 97.16% | 97.80% | 98.31% |
Oxygen | 2.18% | 2.64% | 2.84% | 2.20% | 1.69% | |
After Exposure | Carbon | 94.50% | 93.63% | 96.82% | 96.14% | 95.21% |
Oxygen | 5.50% | 6.37% | 3.18% | 3.86% | 4.79% |