UFC 3-240-13FN
25 May 2005
sampling and testing......................... 159
cleaning preparation .........................187
Closed system corrosion control
fill and soak method ..........................190
molybdate-azole treatment program. 146
general guidance ..............................182
molybdate-nitrite-azole treatment
guidance and procedures for preparing
program ........................................ 147
cleaning solutions..........................184
nitrite-azole treatment program......... 146
mechanical methods .........................184
polysilicate-azole treatment program 147
methods for removing scale ..............188
sulfite-caustic treatment program ..... 145
pre-operational cleaning ...................182
Closed systems
reasons for cleaning..........................183
corrosion control programs ............... 144
recirculating cleaning process for boilers
identifying water leaks ...................... 148
......................................................188
makeup water requirements ............. 143
remedial cleaning..............................183
treatment and control of microbiological
remedial cleaning procedures ...........184
growth ........................................... 148
types of deposits ...............................183
Closed water systems .............................. 1
Chemical cleaning solutions
closed chilled water systems ......... 1,141
hydrochloric (muriatic) acid ...............184
diesel jacket systems....................... 1,10
sulfamic acid .....................................186
hot water systems.......................... 1,140
Chemical control verification .................174
Coke tray aerators .................................. 15
automated sensor control .................175
Combined hot and chilled water systems142
calibrated mass balance ...................175
Common boiler problems ....................... 37
continuous testing .............................174
carryover............................................. 40
little or no testing...............................174
corrosion ............................................. 37
manual testing...................................174
deposition ........................................... 37
Chemical feed and control systems ......168
Condensate corrosion and control.......... 57
automatic chemical feed with manual
causes ................................................ 57
preparation ....................................172
Condensate return rate...................... 43,44
automatic neat chemical feed ...........173
Condensate systems
automatic valves ...............................170
layup ................................................... 85
boiler water controllers ......................169
Conductivity and TDS ........................... 166
bypass feeders..................................171
Container management policy .................. 8
chemical control verification..............174
Control charts ........................................... 4
chemical drip pots .............................171
Cooling tower systems
chemical feed methods .....................171
calculating COC by volume .............. 101
chemical pumps ................................170
controlling COC ................................ 102
cooling tower water controllers .........168
cycles of concentration ..................... 100
eductor chemical addition systems ...171
determining COC by water analyses 101
feed pumps .......................................170
relationship between blowdown,
manual water treatment chemical feed
evaporation, and COC .................. 103
......................................................171
relationship between COC and makeup
safety and general information..........175
...................................................... 102
slowly dissolving dry chemical packages
Cooling tower water sampling and testing
......................................................171
.......................................................... 151
timers ................................................171
Cooling towers
water meters .....................................170
cells .................................................... 96
water quality controller types ............168
components ........................................ 95
Chemical pumps ...................................170
drift eliminators ................................... 96
Chemical requirements for boiler layup ..82
fan deck .............................................. 96
Clean Water Act........................................7
film fill.................................................. 99
Closed brine systems............................142
forced-draft towers.............................. 92
Closed chilled water systems................141
induced-draft towers ........................... 92
Closed glycol systems ..........................142
natural-draft towers............................. 91
Closed hot and chilled circulating water
238
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