Vacuum pumps having all of the following characteristics: a. Input throat size equal to or greater than 380 mm; b. Pumping speed equal to or greater than 15 m 3 /s; and c. Capable of producing an ultimate vacuum better than 13 mPa. Technical Notes: 1. The pumping speed is determined at the measurement point with nitrogen gas or air. 2. The ultimate vacuum is determined at the input of the pump with the input of the pump blocked off.

Liquid Ring Vacuum Pumps, and specially designed components therefore.

Rotary Vane Vacuum Pumps, and specially designed components therefore. Note 1: II.A2.024 does not control rotary vane vacuum pumps that are specially designed for specific other equipment. Note 2: The control status of rotary vane vacuum pumps that are specially designed for specific other equipment is determined by the control status of the other equipment

Vacuum pumps other than those specified in 0B002.f.2. or 2B231, as follows: a. Turbo-molecular pumps having a flow-rate equal to or greater than 400 l/s; b. Roots type vacuum roughing pumps having a volumetric aspiration flow-rate greater than 200 m 3 /h; c. Bellows-sealed, scroll, dry compressor, and bellows-sealed, scroll, dry vacuum pumps.

Vacuum pumps other than those specified in 0B002.f.2 or 2B231, as follows: Turbomolecular pumps having a flowrate equal to or greater than 400 l/s, Roots type vacuum roughing pumps having a volumetric aspiration flowrate greater than 200 m 3 /h. Bellows-sealed, scroll, dry compressor, and bellows-sealed, scroll, dry vacuum pumps.

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