| No. | Parameter | Requirement |
| 1. | Relative Humidity | 23˚C ± 2˚C |
| 2. | Temperature | 50 ± 5% |
| 3. | Duration (min) relative to test specimen dimension | 40 hrs for specimen ≤ 6.33 mm thick 88 hrs for specimen ≥ 6.35 mm thick |