MANGANESE CONCENTRATION CHART
%T
RANGE
PARTS PER MILLION
86-100%
Low
0-5 ppm
71-85%
Medium
5-12 ppm
51-70%
Medium High
13-24 ppm
32-50%
High
25-40 ppm
0-31%
Very High
Over 40 ppm
18
1985-01 • 10/01
