pH of Cream
D
V
10 (µm)
D
V
50 (µm)
D
V
90 (µm)
4.4
2.3
4.3
8.2
5.4
1.6
2.8
4.5
8.4
1.4
2.3
3.7
9.2
1.0
1.5
2.3