Table 4 to Subpart OOO of Part 63 - Operating Parameter Levels

Table 4 to Subpart OOO of Part 63 - Operating Parameter Levels

Device	Parameters to be monitored	Established operating parameter(s)
Scrubber	pH of scrubber effluent; and scrubber liquid and gas flow rates	Minimum pH; and minimum liquid/gas ratio
Absorber	Exit temperature of the absorbing liquid; and exit specific gravity of the absorbing liquid	Maximum temperature; and maximum specific gravity
Condenser	Exit temperature	Maximum temperature
Carbon absorber	Total regeneration steam or nitrogen flow, or pressure (gauge or absolute)a during carbon bed regeneration cycle; and temperature of the carbon bed after regeneration (and within 15 minutes of completing any cooling cycle(s))	Maximum flow or pressure; and maximum temperature
Thermal incinerator	Firebox temperature	Minimum temperature
Catalytic incinerator	Temperature upstream and downstream of the catalyst bed	Minimum upstream temperature; and minimum temperature difference across the catalyst bed
Boiler or process heater	Firebox temperature	Minimum temperature
Other devices (or as an alternate to the requirements previously presented in this table)b	Organic HAP concentration level or reading at outlet of device	Maximum organic HAP concentration or reading

^a 25 to 50 mm (absolute) is a common pressure level obtained by pressure swing absorbers.

^b Concentration is measured instead of an operating parameter.