§ 63.5610 What definitions apply to this subpart?

(a) For all affected sources complying with the batch process vent testing provisions in § 63.490(c) and the operating limit provisions in § 63.505(c), the terms used in this subpart and in subpart U of this part are defined in § 63.482 and paragraph (g) of this section.

(b) For all affected sources complying with the closed-vent system and bypass line requirements in § 63.148, the terms used in this subpart and in subpart G of this part are defined in § 63.111 and paragraph (g) of this section.

(c) For all affected sources complying with the heat exchanger system requirements in § 63.104, the terms used in this subpart and in subpart F of this part are defined in § 63.101 and paragraph (g) of this section.

(d) For cellulose ether affected sources complying with the maintenance wastewater, process wastewater, and liquid stream in open system requirements of subparts F and G of this part, the terms used in this subpart and in subparts F and G of this part are defined in §§ 63.101 and 63.111 and paragraph (g) of this section.

(e) For cellulose ether affected sources complying with the equipment leak requirements of subpart H of this part, the terms used in this subpart and in subpart H of this part are defined in § 63.161 and paragraph (g) of this section.

(f) For cellulose ether affected sources complying with the equipment leak requirements of subpart UU of this part, the terms used in this subpart and in subpart UU of this part are defined in § 63.1020 and paragraph (g) of this section.

(g) All other terms used in this subpart have the meaning given them in § 63.2 and this paragraph (g). If a term is defined in § 63.2, § 63.101, § 63.111, § 63.161, or § 63.1020 and in this paragraph (g), the definition in this paragraph (g) applies for purposes of this subpart.

Bottoms receiver means a tank that collects distillation bottoms before the stream is sent for storage or for further downstream processing.

Carbon disulfide unloading and storage operation means a system at an affected source that includes unloading of carbon disulfide from a railcar using nitrogen or water displacement and storage of carbon disulfide in a storage vessel using nitrogen or water padding.

Cellophane means a thin, transparent cellulose material, which is manufactured using the viscose process and used in food packaging (e.g., candy, cheese, baked goods), adhesive tapes, and membranes for industrial uses, such as batteries.

Cellophane operation means the collection of the cellophane process unit and any other equipment, such as heat exchanger systems, wastewater and waste management units, or cooling towers, that are not associated with an individual cellophane process unit, but are located at a cellophane operation for the purpose of manufacturing cellophane and are under common control.

Cellophane process unit means all equipment associated with the viscose process or solvent coating process which collectively function to manufacture cellophane and any associated storage vessels, liquid streams in open systems (as defined in § 63.149), and equipment (as defined in § 63.161) that are used in the manufacturing of cellophane.

Cellulose ether means a compound, such as carboxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, methyl cellulose, or hydroxypropyl methyl cellulose, which is manufactured using the cellulose ether process and used mainly as a thickener, viscosifier, or binder in a wide variety of consumer and other products.

Cellulose ether operation means the collection of the cellulose ether process unit and any other equipment, such as heat exchanger systems, wastewater and waste management units, or cooling towers, that are not associated with an individual cellulose ether process unit, but are located at a cellulose ether operation for the purpose of manufacturing a particular cellulose ether and are under common control.