About calcium carbonate results of 635
58:38
23:53
34:16
51:44
34:53
20:29
27:09
52:19
33:48
33:13
16:47
20:22
29:17
50:57
27:18
29:21
24:44
29:57
51:47
67:16
54:02
56:00
43:37
42:01
50:16
37:43
41:36
42:13
31:34
53:20
59:20
51:01
72:04
54:22
135:40
55:08
68:18