A total of 4 samples were tested during the shelf life. During the test, the results were all in compliance with the specifications, thus proving the stability of the product.
The number of samples tested during shelf life is 4, and during the testing period, the results all meet the specifications, thus proving the stability of the product
The number of samples tested during shelf life is 4, and the results all meet the specifications during the testing period, which proves the stability of the product.