Table 3 pH measurement of the treated papyrus samples with lavender and camphor oils at a concentration of 0.5% before and after heat and light accelerated aging
Samples | pH value |
|---|---|
Control. | 8.7 |
Heat aged untreated sample. | 8.0 |
Light aged untreated sample. | 7.5 |
Treated sample with lavender oil. | 7.3 |
Heat aged treated sample with lavender oil. | 7.2 |
Light aged treated sample with lavender oil. | 7.4 |
Treated the sample with camphor oil. | 7.6 |
Heat aged treated sample with camphor oil. | 7.5 |
Light aged treated sample with camphor oil. | 7.5 |
