Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 63, Subpt. PPP, Tbl. 7 TABLE 7 TO SUBPART PPP OF PART 63—OPERATING PARAMETERS FOR WHICH MONITORING LEVELS ARE REQUIRED TO BE ESTABLISHED FOR PROCESS 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.

Absorber

Liquid flow rate or pressure drop; and pH of scrubber effluent, if an acid or base absorbent is used

Minimum flow rate or pressure drop; and maximum pH if an acid absorbent is used, or minimum pH if a base absorbent is used.

Condenser

Exit temperature

Maximum temperature.

Carbon adsorber

Total regeneration stream mass or volumetric flow during carbon bed regeneration cycle; and temperature of the carbon bed after regeneration (and within 15 minutes of completing any cooling cycle(s))

Maximum mass or volumetric flow; and maximum temperature.

Extended Cookout (ECO)

Time from the end of the epoxide feed to the end of the ECO, or the reactor epoxide partial pressure at the end of the ECO, or the epoxide concentration in the reactor liquid at the end of the ECO

Minimum duration, or maximum partial pressure at the end of ECO, or maximum epoxide concentration in the reactor liquid at the end of ECO.

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

HAP concentration level or reading at outlet of device

Maximum HAP concentration or reading.