Test Method and Purpose:
The aging box was adjusted to a test temperature of (80 ± 2) ° C, and the air exchange rate was 10 times / h. A sample of the calcium chloride desiccant was hung in the aging box in a free state for testing. When the sample is placed in the aging box, the aging time starts to be calculated. When it reaches 720h, take out the samples. After taking out the sample for 2 hours in an environment with a temperature of (23 ± 2) ° C and a relative humidity of (50 ± 5)%, the sample cannot penetrate and break after the test.
实验结果：
| Sample | Product | before（g) | Condition | after(g) | condition | after（g) | absorption(%) |
| 1 | 10g calcium chloride packet(tymek) | 11.90 | temp:80℃ 30 days | 10.82 | temp:25℃ RH:55% 2H | 13.02 | 20.33% |
| 2 | 11.68 | 10.62 | 12.59 | 18.55% | |||
| 3 | 12.00 | 10.81 | 12.42 | 14.89% | |||
| 4 | 11.99 | 10.87 | 12.72 | 17.02% | |||
| 5 | 12.08 | 10.87 | 12.57 | 15.64% | |||
| 6 | 11.96 | 10.84 | 12.80 | 18.08% | |||
| 7 | 11.84 | 10.70 | 12.56 | 17.38% | |||
| 8 | 11.98 | 10.79 | 12.69 | 17.61% | |||
| 9 | 11.81 | 10.75 | 12.54 | 16.65% | |||
| 10 | 12.03 | 10.82 | 12.65 | 16.91% |
