1. Slip infiltration detection.

　　2. Microbiological testing.

　　3. PH value detection. The inspectors said that the baby's skin is delicate, and the unqualified diapers are easy to cause allergies and red buttocks.

　　4. Diapers are hung in the natural environment to ensure that all samples are tested at the same temperature and humidity.

You can look at the special guidelines for national regulations. Each country is slightly different.