Nomenclature.

Nomenclature. The nomenclature used in this subpart has the following meaning:
(1) AMR = the allowable mass emission rate from each type of affected source subject to the same emission limitation in milligrams per hour (mg/hr).
(2) AMRsys = the allowable mass emission rate from affected sources controlled by an add-on air pollution control device controlling emissions from multiple sources in mg/hr.
(3) EL = the applicable emission limitation from § 63.342 in milligrams per dry standard cubic meter (mg/dscm).
(4) IAtotal = the sum of all inlet duct areas from both affected and nonaffected sources in meters squared.
(5) IDAi = the total inlet area for all ducts associated with affected sources in meters squared.
(6) IDAi,a = the total inlet duct area for all ducts conveying chromic acid from each type of affected source performing the same operation, or each type of affected source subject to the same emission limitation in meters squared.
(7) VR = the total of ventilation rates for each type of affected source subject to the same emission limitation in dry standard cubic meters per minute (dscm/min).
(8) VRinlet = the total ventilation rate from all inlet ducts associated with affected sources in dscm/min.
(9) VRinlet,a = the total ventilation rate from all inlet ducts conveying chromic acid from each type of affected source performing the same operation, or each type of affected source subject to the same emission limitation in dscm/min.
(10) VRtot = the average total ventilation rate for the three test runs as determined at the outlet by means of the Method 306 or 306A testing specified in appendix A of this part in dscm/min.

Source

40 CFR § 63.341

Scoping language

Definitions. Terms used in this subpart are defined in the Act, in subpart A of this part, or in this section. For the purposes of subpart N of this part, if the same term is defined in subpart A of this part and in this section, it shall have the meaning given in this section.