Chemical Analysis
Natural
Carbon
Ash
Volatiles
Moisture
Hart 16
85/90
10/15
-
-
Hart 18
90/95
5/10
0.34%
-
Hart 21
80/85
15/20
1.50%
-
Hart 22
90/95
5/10
0.40%
-
Hart 23
85/90
10/15
2.0%
-
Hart 26
90/95
5/10
- -
Hart 395
95
5
-- -
Hart 397
97
3
-- --
Hart 399
99
1
0.5-8-%
--
Hart 407
99.5
0.3
0.1
0.1
Hart 507
99.7
0.1
0.1
0.1
Hart 580
99.5
0.3
0.1
0.1
Hart 598
96/98
2/4
--
0.8
Hart 995
99.6
0.1
0.1
0.2