Operation and Maintenance Manual 37
Figure 9 Schematic for 255 NCD, in Nitrosamine Mode
Ozone
Vent
C-Filter
O
2
*
Trap
PMT
Reaction
Cell
P
Transfer
Line
Column
Gas Chromatograph
255 NCD
Dual Plasma Controller
25 psig max
P
NC
S
F.C.
F.C.
Dual
Plasma
Burner
Mass
flow
Mass
flow
NC
S
Catalyst
Vacuum Pump
*Or O
2
, He, N
2
