About what is the ph scale used for results of 10,000
07:29
05:54
28:58
07:56
12:22
05:32
04:53
01:16
01:25
10:03
02:55
01:02
09:04
05:10
13:16
05:30
01:11
08:35
04:16
03:06
01:37
04:12
05:59
05:08
07:28
00:51
08:29
02:33
10:57
07:50
02:00
07:18
20:25
13:50
03:48
01:16
03:10
25:57
02:50
11:32
04:40
01:10
06:59
11:23
08:19
14:36