StacksVerified U.S. regulatory reference

21 CFR §868.2320

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Identification. An uncompensated thorpe tube flowmeter is a device intended for medical purposes that is used to indicate and control gas flow rate accurately. The device includes a vertically mounted tube and is calibrated when the outlet of the flowmeter is open to the atmosphere.
  2. (b)Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 868.9.