Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 63, Subpt. U, Tbl. 7 Table 7 to Subpart U of Part 63—Operating Parameters for Which Monitoring Levels Are Required To Be Established for Continuous and Batch Front-End Process Vents and Aggregate Batch Vent Streams

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.

Scrubber for halogenated vents

pH of scrubber effluent; and scrubber liquid and gas flow rates

Minimum pH; and minimum liquid/gas ratio.

[§ 63.489(b)(4)(ii) ]

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 adsorber

Total regeneration steam flow 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.

Other devices (or as an alternate to the above)^b

HAP concentration level or reading at outlet of device

Maximum HAP concentration or reading.