The seal label for PH / product design

The quality of drinking water has, all the time, attracted much attention from people. There are many standards for water quality, among which PH value is one of the most important water quality parameters. The value of PH is not noted on the packages of most barreled water, which makes customers difficult to distinguish when drinking. With what PH value is the water suitable for us to drink? What on earth is the PH value of our drinking water? For these issues, our design is to combine the seal label of barrelled water with the PH test paper so that when the consumers open a new bucket of barrelled water, they will gain a PH LABEL along with