CODEL
OPS. 141
66
Issue : A
Revision : 1
Date : 14/06/18
Doc i/d :
0141/6
050028
Thus,
Ox
=
100 [1 - (1 - O
m
/100) exp l
x
/l
m
] %
and is directly proportional to the Ringelmann scale range 0 to 5 (equivalent to 0
- 100%O
x
)
The following illustration shows typical relationships between opacity and
Ringelmann for various stack exit diameter/measurement path length ratios
(l
x
/l
m
).
Figure 14
