The article text (heading) targets are given as 9s, but this does not mean that a 9 x Jura can be decalcified.
There are 3 blisters, each with 3 tablets. For a descaling process must be used with 3 tablets 1 blister. Not that anyone here thinks a 9s can pack 9 x descaling.
For that reason one can recognize on the packaging and the number 3.